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If your ResMed AirSense 10 is leaking water, blowing too much air, showing a black screen, or failing to humidify, the solution typically involves one of six areas: the HumidAir water tub seating, Climate Control settings, Ramp and EPR pressure levels, the mask seal, the power connection, or clearing a specific device message. This guide covers common AirSense 10 problems and the steps to resolve them based on ResMed's user guide and support documents.
The AASM clinical practice guideline recommends PAP therapy, such as CPAP, to treat adults with obstructive sleep apnea (OSA) and excessive sleepiness. The ResMed AirSense 10 AutoSet with HumidAir is designed with a service life of approximately five years. Depending on the version, it sends therapy data through a built-in cellular modem or an SD card, allowing your healthcare provider to monitor your progress via an AirView report. For technical specifics, always refer to the official ResMed AirSense 10 User Guide.
| Problem | Most Likely Cause | First Thing to Try |
| Water leak (bottom of machine) | Water tub not fully seated | Remove the tub, wipe dry, and reinsert firmly until it clicks |
| Water leak (side of tub) | Tub cracked or incorrectly assembled | Inspect the tub and reassemble per the user manual; replace if cracked |
| Water in the hose/gurgling | Rainout (condensation) | Lower humidity 1-2 steps, or use ClimateLineAir heated tubing |
| Wet mask/water droplets on the nose | Humidity too high | Reduce the humidity setting; with ClimateLineAir, use Climate Control Auto |
| Pressure too high / blowing too much | Ramp off or EPR off | Set Ramp Time in My Options; ask your provider about EPR |
| Pressure too low / not enough air | Ramp in progress | Wait for the ramp to finish, or turn Ramp Time off |
| Device still blowing after therapy | Normal cooling behavior | Wait up to 30 min. It stops automatically |
| Screen black | Auto backlight off or Power Save mode | Press Home or dial to wake; check power if unresponsive |
| Device won't turn on | Power connection issue | Check the power cord at the device and the wall; try a different outlet |
| Device shuts off during therapy | Loose connection or blocked airflow | Secure power cord; clear airflow around device |
| Humidifier not heating / no humidity | Humidity set to Off or the tub not seated | Check My Options > Humidity Level (must not be Off) |
| Air too warm | Humidity or tube temp too high | Lower humidity or tube temperature; with ClimateLineAir, use Climate Control Auto |
| Too much water is consumed nightly | Humidity too high, a leak, or dry room air | Lower humidity; fill only to the max line with distilled water |
| Air leaking around the mask | Poor fit or worn cushion | Run Mask Fit test; adjust straps; replace cushion if worn |
| Dry nose | Humidity too low | Increase humidity level; consider ClimateLineAir tubing |
| Dry mouth | Air escaping through the mouth | Use a chin strap or switch to a full face mask; increase humidity |
| Sad face on the humidifier in the Sleep Report | Humidifier might be faulty | Contact your care provider (ResMed User Guide p.5) |
| Error 0XX message | Unrecoverable error (per ResMed) | Contact your care provider; do not open the device |
Have an AirSense 11? Many of these issues apply, but the interface and menu structure are different. See our AirSense 11 vs AirSense 10 comparison for model-specific guidance.
Accessing your therapy data is a critical step in advanced troubleshooting. The ResMed AirSense 10 records your therapy data, which your care provider can review in AirView. By reviewing these reports, your care provider can check leaks and decide whether pressure adjustments are necessary to improve your comfort and adherence.
Spending more time troubleshooting than sleeping? If your AirSense 10 is aging out, the ResMed AirSense 11 AutoSet is the newer model, with a color touchscreen, built-in Bluetooth and cellular connectivity, and the myAir app with a setup guide. See the AirSense 11 AutoSet →
AirSense 10 Water Leaks
Water leaks from the AirSense 10 usually involve the HumidAir water tub: ResMed lists a tub that is not assembled correctly or is cracked, and warns against overfilling. Condensation in the hose, also known as rainout, looks like a leak but is a separate issue caused by humidity settings. Here is how to tell the difference and fix each one.
Leaking from the Bottom of the Machine
If you see water pooling under the AirSense 10, the tub may not be fully inserted or assembled correctly. Reseating the tub is the first thing to check.
Quick Fix: Hold the tub at the top and bottom with your hand. Press gently and pull it away from the machine. Use a clean, dry cloth to wipe the tub area and the base of the machine completely dry. Reinsert the tub firmly until it is fully inserted. If the leaking continues after you have verified the placement, inspect the tub for hairline cracks. The ResMed AirSense 10 User Guide, on page 12, says a leaking tub may not be assembled correctly: check for damage and reassemble it.
Water Chamber Leaking from the Side
Side leaks from the HumidAir tub point to one of two causes: incorrect assembly or a crack in the tub body. Every time you open the tub to clean or fill it, the seal must be perfectly aligned to prevent water from dripping out during therapy.
Check your assembly by looking at the tub lid. Insert one side of the lid into the pivot hole, then slide the other side down the ridge until it clicks shut. If the assembly is correct but the leak continues, your tub is likely damaged. As noted in the ResMed User Guide (p. 13), the machine may even display "High leak detected, check your water tub" if the seal or side cover is compromised. ResMed says to replace a tub that is leaking, cracked, cloudy or pitted (User Guide p. 9). If you find a crack, you should immediately replace it with a new HumidAir Standard Water Chamber Tub.
Water Getting Into the Hose (Rainout)
Water in the hose, often called rainout, is not a device malfunction. It happens when warm, humidified air cools inside the tubing, causing condensation to form. As the warm air leaves the humidifier, it encounters the cooler air in your bedroom. Droplets form along the inside of the hose and eventually gurgle or drip down into your mask.
There are several effective ways to stop this:
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Lower the humidity level: Reduce the setting by 1 or 2 steps in your "My Options" menu.
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Use heated tubing: The ClimateLineAir Heated Tube is an option ResMed suggests (User Guide p. 7). It keeps the air temperature stable across the full length of the hose to prevent cooling.
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Positioning: Place your machine slightly lower than the bed using a CPAP Nightstand. This allows gravity to pull condensation back into the humidifier rather than into your face.
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Insulation: Use a hose cover or tube wrap to keep the air inside the tube warm when you are in cold rooms.
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Check connections: Ensure the hose is tight at both ends, as gaps can let moisture escape.
ResMed has tips on how to avoid CPAP rainout, and you can also find more details in our blog post on how to prevent CPAP rainout. Clinical studies, such as the one by Rühle et al. (2010), a small study in 8 patients, found that a tube cover raised the temperature in the mask slightly and reduced condensation. Additionally, the ResMed User Guide (p. 12) mentions that the device may blow a small amount of air after therapy to help avoid condensation in the air tubing.
Humidity Too High: Wet Mask or Water Droplets on Nose
If you wake up with water on your nose or inside your mask, the humidity level is set too high. The excess humidity is condensing directly on the mask cushion because the room air is cooler than the air coming from the machine.
To fix this, go to "My Options" and lower the Humidity Level by 1 or 2 steps. If you are currently using standard SlimLine tubing, switching to ClimateLineAir often resolves these moisture issues without sacrificing humidity, as it automatically balances temperature and humidity. This aligns with the advice in the ResMed User Guide (p. 12), which suggests adjusting the humidity level if you find droplets of water in the mask or tubing.
Air Pressure Problems
Most AirSense 10 pressure complaints come from three things: Ramp Time is disabled, EPR (Pressure Relief) is off, or the mask seal is poor. Here is how to diagnose and fix each.
Pressure Feels Too High / Blowing Too Much Air
If the AirSense 10 feels like it is pushing too much air, especially when you first put the mask on, Ramp Time and EPR are the first two settings to check.
The ResMed AirSense 10 User Guide (PDF) defines Ramp Time as the period during which pressure gradually increases from a low start to the prescribed treatment pressure. When Ramp Time is off, therapy starts at full pressure immediately. You can fix this by going to My Options > Ramp Time and setting it anywhere from 5 to 45 minutes, or Auto.
According to the ResMed Air Solutions FAQ, EPR (Expiratory Pressure Relief) reduces pressure during exhalation. This makes it much easier to exhale against the incoming air. When EPR is off, the full prescribed pressure applies during both inhalation and exhalation. EPR is a provider-controlled setting. If it is not available in your My Options menu, your provider has not enabled it. You should ask them about it at your next visit.
If the device has recently started blowing harder than usual, first check your mask fit. In AutoSet mode, the device adjusts pressure within your prescribed range based on your breathing, and air escaping through a poor seal makes therapy feel different. A worn mask cushion is a common cause. Try replacing your cushion and then use the Mask Fit tool until you see a "Good" result. The Mayo Clinic's guide on CPAP problems also suggests the ramp feature, which starts with low air pressure and slowly increases it. If the pressure consistently feels too high even after these steps, your doctor may need to adjust your prescribed pressure range.
Pressure Feels Too Low / Not Getting Enough Air
ResMed lists Ramp in progress as the likely cause of low pressure. Give it a few minutes, or turn Ramp Time off if you prefer full pressure immediately.
Ramp Time starts at a gentle pressure to help you fall asleep. However, if you are still wide awake, that starting pressure might feel like it is not enough air. You can either wait for the ramp to complete or go to My Options > Ramp Time > Off to disable it entirely.
If the air still feels thin after the ramp completes, check your mask for leaks. Air escaping through a poor seal reduces the effective pressure you receive. You can verify this using the Mask Fit test on your screen. As noted in the ResMed AirSense 10 User Guide (PDF) troubleshooting table, if the air pressure in your mask seems too low, the ramp is likely in progress, and you simply need to wait or adjust the setting.
Device Still Blowing Air After I Remove My Mask
This is completely normal. The AirSense 10 blows a small amount of air for up to 30 minutes after therapy ends. ResMed refers to this cooling-down behavior as a means of reducing condensation in the tubing.
The ResMed User Guide confirms that this small amount of air prevents condensation and that the device will stop automatically after 30 minutes. If you have SmartStart enabled, your therapy automatically stops a few seconds after you take the mask off, and the device may still blow a small amount of air for up to 30 minutes.
Screen, Power & Device Not Responding
Most screen and power problems on the AirSense 10 stem from the auto-backlight turning off (press Home to wake it), a loose power connection, or Power Save mode being active. A device that shuts off during therapy or won't start should be checked for a connection issue first.
Screen Is Black
Press the Home button or turn the dial. This wakes the screen if the backlight timed out automatically. The screen goes black automatically after a short time, and a light sensor adjusts its brightness to the room. This is normal and not a malfunction.
If pressing “Home” does not work, check your power supply. Is the cord fully seated at the back of the device? Is it plugged into a working outlet? You should try a different outlet to be sure. You can also accidentally put the device into Power Save mode by holding the Start/Stop button for 3 seconds. The screen goes completely black in this mode. To exit Power Save, press Start/Stop once; the Home screen will appear. While Airplane Mode does not turn off the screen, it is worth checking if your wireless settings were recently changed by visiting My Options > Airplane Mode.
Reference: ResMed User Guide (p. 5) confirms that the screen goes black automatically. The troubleshooting table (p.12) notes that if the screen is black, the backlight may have turned off and can be restored by pressing Home.
AirSense 10 Won't Turn On
If the device does not respond at all, with no screen and no airflow, start with the power connection before assuming a hardware fault.
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Unplug the power cord from the device, then plug it back in firmly. The connector should be fully seated at the rear power inlet port.
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Check that the wall outlet is working by plugging another device, such as a lamp, into it.
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Check the power supply unit and its cable for damage, and make sure both ends are firmly connected.
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Try a different outlet or a different power strip.
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Make sure no water has entered the device or the power connector.
If the machine is still unresponsive after all these checks, there may be an internal fault. Do not attempt to open the device. You should contact ResMed or your care provider for a professional repair.
Reference: The ResMed User Guide (p. 4) provides setup steps for inserting the power connector, while the troubleshooting section (p. 12) reminds users to ensure the plug is fully inserted.
Device Shuts Off During Therapy / Keeps Turning Off
If your AirSense 10 shuts off while you are using it, check four things: the power connection, airflow around the device, the mask seal, and whether SmartStart is interpreting a mask removal.
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Loose Power Connection: The cord can work loose during the night as you move. Ensure the cord is firmly seated and keep the device somewhere the cord will not be pulled or snagged.
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Blocked Airflow: According to the ResMed User Guide warnings (p. 15), blocking the air inlet or covering the device with bedding can cause overheating. Keep the air inlet clear and keep bedding off the device.
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SmartStart Issues: If SmartStart is enabled, therapy stops automatically when you remove your mask. If your mask seal is very poor, the system may interpret the massive leak as you taking the mask off. Run a Mask Fit test to ensure your seal is secure.
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Power Interruption: A faulty power strip or a tripped surge protector can cause midnight shutdowns. Try connecting directly to a wall outlet to rule this out.
If the device shuts off repeatedly with no obvious cause, contact your care provider. Your care provider can review your therapy data in AirView.
How to Reset the ResMed AirSense 10
The AirSense 10 does not have a user accessible factory reset button. Therapy settings such as pressure, EPR, and your prescribed range are clinician-controlled and cannot be changed by the user. However, you can restart the device, adjust your personal options, or ask your provider for a full settings reset.
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Soft Restart: To clear minor glitches or refresh the system after an error message, disconnect the power supply and then reconnect it to restart the device.
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User Options: You can independently reset or adjust your Ramp Time, Humidity Level, Mask Type, and Airplane Mode via the My Options menu.
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Full Settings Reset: Only your care provider can perform a factory reset via the clinician menu. Contact your DME (Durable Medical Equipment) supplier to request a review of your settings.
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SD Card Reset: If you see an SD card error, removing and reinserting the card can often clear the message.
Reference: ResMed User Guide (p. 6-7) details the user-accessible My Options menu, while the troubleshooting section (p. 13) explains how to handle SD card errors.
Humidifier Issues
The AirSense 10 includes a built-in HumidAir heated humidifier. Most humidifier complaints, such as the unit not heating, too much or too little moisture, or air that feels too warm, stem from the humidity level setting, tub placement, or the type of tubing you're using. Here is how to fix the most common ones.
Humidifier Not Working / Not Heating
If your humidifier isn't producing moisture, first check that Humidity Level is not set to Off in My Options.
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Check Your Settings: Go to My Options > Humidity Level and confirm it is NOT set to Off. Choose a level between 1 and 8.
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Reseat the Water Tub: Remove and firmly reinsert the HumidAir Standard Water Chamber Tub all the way into the side of the device.
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Check Water Level: Fill the tub with distilled water to the MAX line, but never above it.
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Don’t Touch the Heater: Don’t test the heat with your hand. ResMed says to let the water tub cool for ten minutes before handling it; use the Sleep Report check below instead.
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Review the Sleep Report: Check the Report on your screen. Per the ResMed User Guide (p.5), the humidifier icon displays a happy face when functioning correctly. A frowning face means the humidifier might be faulty, and you should contact your provider.
Best Humidity Settings: What Level Should I Use?
The AirSense 10 Humidity Level can be set to Off or from 1 to 8, where 1 is the lowest and 8 is the highest. The right setting depends on your symptoms and your room temperature.
| Symptom | Recommended Adjustment |
| Dry nose or dry throat | Increase by 1 to 2 steps |
| Dry mouth | Increase humidity; consider a chin strap or full face mask |
| Water droplets in mask or hose | Decrease by 1 to 2 steps |
| Air feels too warm or steamy | Decrease humidity or switch to Climate Control Auto |
| Water levels drop too fast overnight | Decrease humidity; check for leaks |
According to the ResMed User Guide (p. 6-7), if you continue to experience a dry nose or mouth despite adjustments, using ClimateLineAir Heated Tubing is worth considering. When paired with Climate Control Auto, the device automatically adjusts temperature and humidity to help protect against rainout (ResMed ClimateLineAir User Guide).
Air Feels Too Warm or Hot
If the air from your AirSense 10 feels hot or uncomfortably warm, the humidity level or the tube temperature may be set too high.
A high humidity setting in a warm room can make the air feel steamy. You can fix this by lowering the humidity level in My Options or switching to Climate Control Auto. If you are using heated tubing, try lowering the tube temperature specifically.
For safety context, the ResMed User Guide technical specifications (p. 17) list a maximum gas temperature of 106°F (41°C) or lower. If the air still feels too hot after you lower the settings, stop using the device and contact your care provider.
Device Using Too Much Water
The HumidAir tub holds 380mL of water. If the tub is emptying completely every night, the humidity may be too high, there may be a leak, or the room air may be dry.
ResMed says water evaporates more quickly if there is a leak, the room is dry or the humidity setting is high.
Always use distilled water as recommended in the ResMed User Guide (p.4). If you notice white powder deposits, clean the tub with a solution of one part household vinegar to 10 parts water. ResMed specifies a design life of 6 months for the water tub, so if it is older than that and shows signs of wear, it is time to replace it.
Mask Comfort Issues (Air Leaks, Dry Nose, Dry Mouth)
Mask leaks, dry nose, and dry mouth are among the common CPAP problems Mayo Clinic lists. Fit, humidity level, and mask type are the main things to check. Here is how to fix each one.
Air Leaking Around the Mask
A leaking mask can make therapy uncomfortable. Air escaping around the mask can also dry your eyes and nose and make the pressure feel uneven.
Checking the cushion for cracks, breaks or stiffness can help you find leaks. The Mayo Clinic notes that air leaks happen when the mask doesn't fit correctly, and that if you have to tighten the straps often to stop leaks, the mask does not fit properly.
To fix this, use the built-in tool on your device. Go to My Options > Run Mask Fit. According to the ResMed User Guide (p. 7), the machine will blow air to test the seal and show the result. Adjust your mask until you see a "Good" result. If you consistently get a poor seal, it might be time to check out the Best CPAP Masks of 2026 or learn about Common CPAP Mask Mistakes that could be affecting your sleep.
Dry or Stuffy Nose
A dry or stuffy nose during CPAP therapy usually means your humidity level is too low. The constant airflow is drying out your nasal passages faster than your body can lubricate them.
Users of a nasal pillow mask, such as the AirFit P10 Nasal Pillow Mask, can adjust humidity the same way. The ResMed User Guide (p.12) is very direct about this: if you have a dry or blocked nose, you should increase the Humidity Level in your settings. For a more permanent fix, using a ClimateLineAir Heated Tube provides more consistent moisture delivery regardless of your room temperature.
Dry Mouth
Dry mouth during CPAP therapy means air is escaping through your mouth. With a nasal mask, this can happen if your mouth opens during sleep.
The ResMed User Guide (p.12) suggests three specific solutions for this:
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Increase Humidity: This reduces the dryness caused by the air itself.
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Use a Chin Strap: A Best In Rest Adjustable Chin Strap helps keep your mouth closed, allowing the nasal mask to work effectively.
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Switch to a Full Face Mask: Masks like the AirFit F20 or the AirFit F40 cover both the nose and mouth, which Mayo Clinic says may keep your mouth from becoming dry.
The Mayo Clinic notes that CPAP may worsen dry mouth if you breathe through your mouth or sleep with it open, and that air leaks can also cause CPAP Dry Mouth.
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AirSense 10 Error Codes & Device Messages
The messages ResMed documents for the AirSense 10, such as High leak detected, Tubing blocked, SD card errors, and System fault Error 0XX, are explained below. For any numbered Error 0XX, do not attempt to open the device. Contact your care provider.
Named Device Messages Table
The following messages are common notifications that appear on your screen. Most can be resolved by following the specific actions listed here.
| Message on Screen | What It Means | What to Do |
| High leak detected, check your water tub, tub seal or side cover | Water tub not inserted properly or seal not seated | Remove and firmly reinsert tub; check seal is correctly placed. (ResMed User Guide p.13) |
| High leak detected, connect your tubing | Air tubing not connected or mask fitting incorrectly | Check tubing is firm at both ends; run Mask Fit test. (ResMed User Guide p.13) |
| Tubing blocked, check your tubing | Obstruction in air tubing | Remove obstruction; press dial to clear message; press Start/Stop to restart therapy. (ResMed User Guide p.13) |
| SD card error, remove your card and press Start to begin therapy | SD card not inserted correctly | Remove and reinsert the SD card. (ResMed User Guide p.13) |
| Read-only card, please remove, unlock and re-insert SD card | SD card switch in lock (read only) position | Move switch on SD card from lock (padlock icon) to unlock position; reinsert. (ResMed User Guide p.14) |
| All other error messages: System Fault, Error 0XX | Unrecoverable error (per ResMed) | Contact your care provider. Do not open the device. Note down the exact error number. |
Numbered Error Codes: 0XX Series
ResMed does not publish a full list of AirSense 10 error codes. The only numbered code it documents is Error 004; for any other number, contact your care provider.
| Error Code | Possible Cause (per ResMed) | What To Do |
| System fault, Error 004 | Device left in a hot environment | Let it cool before use, then disconnect the power supply and reconnect it to restart the device. |
| System fault, Error 004 | Air filter blocked | Check the air filter and replace it if blocked, then disconnect and reconnect the power supply. |
| System fault, Error 004 | Air tubing blocked | Remove any blockage, press the dial, then press Start/Stop. |
| System fault, Error 004 | Water in the air tubing | Empty the water from the air tubing, then disconnect and reconnect the power supply. |
| Any other Error 0XX | An unrecoverable error has occurred on the device | Contact your care provider. Do not open the device. Note the exact error number. |
For any Error 0XX or System Fault message, ResMed instructs users not to open the device. Error 004 causes are listed in the Spanish section of the ResMed AirSense 10 User Guide and on page 33 of the ResMed AirSense 10 Clinical Guide (Asia Pacific "Plus" edition). For other numbered errors, contact your care provider. ResMed User Guide (p.15) warns that there are no user-serviceable parts inside and servicing should only be performed by authorized agents. Keep your device model and serial number, printed on the device label, ready when contacting support.
When to Contact ResMed or Your Provider
If you have tried the relevant fix and the issue persists, it is time to escalate to your care provider or ResMed service.
Escalation Checklist
Contact your provider or DME supplier if:
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Any Error 0XX appears on screen: ResMed calls these unrecoverable errors; for Error 004, try the steps in the table above first. Never attempt to open the device yourself.
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The device won't power on: If you have checked all connections and tried multiple outlets, but the screen remains black, contact your care provider.
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Frowning face in Sleep Report: If the humidifier icon shows a frown, the unit is not functioning correctly.
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Persistent water leaks: If the tub leaks after proper reassembly, it likely has invisible hairline cracks and needs to be replaced.
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Repeated midnight shutdowns: If the device shuts off with no obvious power or airflow cause, it needs a diagnostic check.
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Pressure feels incorrect: If therapy is uncomfortable after checking the Ramp and mask seal, your provider may need to adjust your prescribed pressure range.
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Unusual noises: ResMed’s troubleshooting guide says to check that the air filter isn’t clogged, the water tub isn’t cracked and is fully inserted, and you’re using a ResMed tube. If the noise continues, contact your provider.
Important Tips for Service
When you reach out for help, keep the device model and serial number handy. You can find these on the device label. Having this information ready will speed up any warranty or service requests. For official technical help, you can visit the ResMed AirSense 10 product page page or browse the ResMed Air Solutions FAQ for more device-specific information.
Knowing the Design Life
According to the ResMed User Guide Technical Specifications (p.18), the AirSense 10 device and power supply unit have a design life of 5 years. The cleanable water tub is designed for 2.5 years, while the standard water tub and air tubing are rated for 6 months.
If your machine is nearing that 5-year mark and starting to glitch, it might be more cost-effective to look at a new AirSense 10 AutoSet or see if it is finally time to jump to the latest technology in our AirSense 11 vs AirSense 10 comparison.
Need a replacement part, a new mask, or accessories for your AirSense 10? Browse ResMed compatible products at Sleeplay.
If troubleshooting hasn’t solved the problem, it may be time for an upgrade. The AirSense 11 AutoSet is ResMed’s newer model, with a color touchscreen, Bluetooth, and the myAir app. Upgrade to the AirSense 11 →
Need a prescription renewal to make the switch? If you were diagnosed within the last 10 years and use CPAP, you can renew it online with a licensed physician through Sleeplay’s RxExpress. Get Your Prescription Online →
Or browse all available AirSense 11 bundles (machine + mask included): Shop AirSense 11 Bundles →
Frequently Asked Questions
Why is my ResMed AirSense 10 blowing too much air?
ResMed’s AirSense 10 User Guide lists Ramp being turned off as a common reason the pressure feels too high, so try setting Ramp Time to Auto or 5 to 45 minutes. Pressure Relief (EPR), when your provider enables it, can make breathing out easier. In AutoSet mode, the device adjusts pressure within your prescribed range based on your breathing. If the airflow feels consistently excessive, a clinician should review your settings.
Why is my ResMed AirSense 10 pressure too high?
Pressure can feel high when Ramp is off, and a poor mask seal can make therapy feel uneven. Mayo Clinic suggests the ramp feature, which starts with low air pressure and slowly increases it. If high pressure persists after checking Ramp and your mask fit, a provider should check your therapy settings.
Why is my ResMed CPAP not blowing air?
Check the basics first: the power supply should be fully connected at the device and the wall, and the screen may simply be off (press Home or the dial). If SmartStart is enabled, therapy starts when you breathe into the mask, so take a deep breath in and out through it. If the device shows an Error 0XX, contact your care provider and do not open the device.
Why is my ResMed AirSense 10 leaking water?
ResMed’s AirSense 10 User Guide says a leaking water tub may not be assembled correctly, or may be damaged or cracked. Check and reassemble the tub, don’t overfill it past the maximum line, and contact your care provider for a replacement if it is cracked.
Why is water getting into my CPAP hose?
Condensation in the tubing (“rainout”) happens when warm, humidified air cools inside the hose. ResMed’s User Guide says droplets in the mask and tubing mean the humidity level may be set too high. Lowering humidity, or using ClimateLineAir heated tubing, typically reduces condensation.
Why does my CPAP cause dry mouth?
Mayo Clinic explains that CPAP may worsen dry mouth if you breathe through your mouth or sleep with it open, and that air leaks can also cause it. ResMed’s User Guide suggests increasing humidity, using a chin strap to keep your mouth closed, or switching to a full face mask.
Why is my ResMed AirSense 10 screen black or not turning on?
ResMed says the backlight turns off automatically after a while; press Home or the dial to turn it back on. The screen also goes black in power save mode (holding Start/Stop for three seconds). If the device stays unresponsive, check that the power supply is connected and the plug is fully inserted, then contact your care provider.
Why is my ResMed CPAP leaking air around the mask?
ResMed says leaks usually come from a mask that isn’t fitted correctly; use the Mask Fit function to check the seal. Mayo Clinic adds that if you have to tighten the straps often to stop leaks, the mask doesn’t fit properly. Adjusting the straps gently and replacing worn cushions can help.
Why does my ResMed AirSense 10 keep shutting off?
Your AirSense 10 might shut off during the night if the power connection is loose or if airflow around it is blocked. Keep the air inlet clear and keep bedding off the device. SmartStart might also stop therapy if it detects a large leak that looks like you removed your mask. If the shutdowns continue, contact your care provider.
How do I reset my ResMed AirSense 10?
The AirSense 10 does not feature a factory reset button for users because therapy settings are clinician-controlled. You can manage personal comfort options, such as Ramp Time and Humidity, yourself through the My Options menu. To restart the device, disconnect the power supply and then reconnect it. For a total settings reset, contact your doctor or equipment provider.
Why is my ResMed AirSense 10 humidifier not working?
The most likely culprit is that the Humidity Level is set to Off in your My Options menu; set it to a level between 1 and 8. If the settings are correct, make sure the water tub is filled with distilled water and pushed all the way in. If the humidifier icon in your Sleep Report shows a sad face, the humidifier might be faulty; contact your care provider.
What do the ResMed AirSense 10 error codes mean?
ResMed does not publish a full list of AirSense 10 error codes. The one it documents, System fault Error 004, can mean the device got too hot, the air filter is blocked, the tubing is blocked, or there is water in the tubing. For any other Error 0XX, ResMed says an unrecoverable error has occurred: note the number, contact your care provider, and do not open the device.
What should I do if I see an Error 0XX on my AirSense 10?
An Error 0XX message means the device has detected an unrecoverable error. The ResMed User Guide instructs users not to open the device, as there are no user-serviceable parts inside. Write down the exact error number, then contact your care provider; if you bought the machine from Sleeplay, contact Sleeplay and we will handle the warranty claim with ResMed. ResMed’s warranty for the device is 2 years.
References:
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American Academy of Sleep Medicine (AASM). Clinical practice guideline on the use of PAP therapy for sleep apnea. Clinical guideline / professional society guidance.
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ResMed. AirView Online Help 4.47 (Americas) (PDF), section "Create a report".
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ResMed. AirSense 10 device with Humidifier: User Guide (Americas, English) (PDF). Manufacturer user manual / instructions for use. Accessed 19 Feb 2026.
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ResMed (Sleep Health Blog). Avoid CPAP rainout. Educational article (manufacturer guidance). Accessed 19 Feb 2026.
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Rühle K-H, Domanski U, Schröder M, Franke KJ, Nilius G. Heated humidification during CPAP with and without tube insulation. Pneumologie. 2010 May;64(5):316-319. Epub 2010 Apr 12. doi:10.1055/s-0029-1244073. PMID:20387197. Accessed 19 Feb 2026.
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