ResMed AirSense 10 Troubleshooting: A Complete 2026 Guide

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 every common AirSense 10 problem and provides the fastest, safest steps to resolve them based on the ResMed User Guide and real-world troubleshooting.

CPAP therapy is the primary recommended treatment for adults with obstructive sleep apnea (OSA) according to the AASM clinical practice guidelines. The ResMed AirSense 10 AutoSet with HumidAir is designed with a service life of approximately five years. It uses a built-in cellular modem and an SD card to transmit therapy data, allowing your healthcare provider to monitor your progress via an AirView Report Guide. For technical specifics, always refer to the official ResMed AirSense 10 User Guide.

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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 or enable ClimateControl Auto
Pressure too high / blowing too much	Ramp off or EPR off	Enable Ramp Time and/or EPR in My Options
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 or 0)
Air too warm	Humidity or tube temp too high	Lower humidity or switch to ClimateControl Auto
Too much water is consumed nightly	Humidity is too high or cold room	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
Heating System Fault message	Faulty heater plate or board	Device still runs without heat; contact the care provider for service
Error 0XX message	Unrecoverable hardware error	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 detailed information to your SD card, which you can upload to AirView for a professional review. Analyzing these reports helps distinguish between simple mask fit issues and complex requirements in clinical settings. By reviewing these logs, your sleep specialist can pinpoint exactly when leaks occur or when pressure adjustments are necessary to improve your comfort and adherence.

AirSense 10 Water Leaks

Water leaks from the AirSense 10 almost always come from the HumidAir water tub. Either it is not fully seated, overfilled, or cracked. 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 is almost certainly not fully seated. When the tub is not pushed in all the way, moisture escapes through the small gap and runs down into the machine's base. This can look alarming, but it rarely means the internal mechanics are broken.

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 you feel or hear it click into place. If the leaking continues after you have verified the placement, inspect the tub for hairline cracks. These tiny fractures can be hard to see in older tubs, but will still allow water to seep out over several hours. The ResMed AirSense 10 User Guide, on page 8, specifically notes that if the water tub is not assembled correctly, you must check for damage and reassemble it properly.

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. You can check your device messages in the "My Options" menu; 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. Do not continue using a cracked tub because water could eventually enter the device, causing an electrical failure. If you find a crack, you should immediately replace it with a new HumidAir Standard Water Chamber Tub.

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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:

• Lower the humidity level: Reduce the setting by 1 or 2 steps in your "My Options" menu.

• Use heated tubing: The ClimateLineAir Heated Tube is the most effective solution. It keeps the air temperature stable across the full length of the hose to prevent cooling.

• 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.

• Check connections: Ensure the hose is tight at both ends, as gaps can let moisture escape.

ResMed provides excellent 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), have shown that tube insulation significantly reduces 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. This is one of the easiest fixes on the AirSense 10. 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 device is compensating for a mask leak by increasing pressure. 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. If the pressure suddenly increases, a mask leak may be causing the AutoSet mode to compensate.

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. This can feel overwhelming for many users. You can fix this by going to My Options > Ramp Time and setting it to 5, 10, 20, 30, 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. This often leads to the feeling that the machine is blowing too much air. 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. The AutoSet mode increases pressure to compensate for leaks, ensuring you still receive your required therapy. A degraded mask cushion is often the 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 notes that adjusting your mask and settings can resolve most feelings of excessive pressure. 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

Low pressure almost always means the Ramp is still building up. 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, but a brief cooling airflow will still occur.

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 usually has a connection issue rather than a motor fault.

Screen Is Black

Press the Home button or turn the dial. This wakes the screen if the backlight timed out automatically. The AirSense 10 has a light sensor, and the screen dims or turns off after a short period of inactivity. 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.

1. 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.

2. Check that the wall outlet is working by plugging another device, such as a lamp, into it.

3. Check the power brick. Is its indicator light on? A dead power brick is a common cause of failure.

4. Try a different outlet or a different power strip.

5. 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.

• 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.

• Blocked Airflow: According to the ResMed User Guide warnings (p.14 and 15), blocking the air inlet or covering the device with bedding can cause overheating. The device will shut down to protect its motor. The solution is to keep 2 to 3 inches of clearance on all sides and never place the device in a drawer or under the bed.

• 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.

• 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 AirView Therapy Report may help pinpoint the exact time of the shutdown for diagnostic purposes.

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.

• Soft Restart: To clear minor glitches or refresh the system after an error message, unplug the power cord, wait 30 seconds, and plug it back in. This is equivalent to a soft reboot.

• User Options: You can independently reset or adjust your Ramp Time, Humidity Level, Mask Type, and Airplane Mode via the My Options menu.

• 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.

• SD Card Reset: If you see an SD card error, removing and reinserting the card can often clear the message. Your therapy data on the card is separate from the device settings.

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, the most common cause is Humidity Level set to Off in My Options, which is easy to fix in under 30 seconds.

1. Check Your Settings: Go to My Options > Humidity Level and confirm it is NOT set to Off or 0. Set it to 4 (the default) to start.

2. Reseat the Water Tub: Remove and firmly reinsert the HumidAir Standard Water Chamber Tub until it clicks into the side of the device. A tub that isn't fully seated won't make contact with the heater plate.

3. Check Water Level: Fill the tub with distilled water to the MAX line, but never above it.

4. Test the Heat: After 10 to 15 minutes of therapy, gently touch the area around the tub. It should feel warm to the touch.

5. 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.

If you see a "Heating System Fault" message, the heater plate or internal board has failed. The device will continue to deliver air without heat, but it requires professional service.

Best Humidity Settings: What Level Should I Use?

The AirSense 10 humidity scale runs from Off (0) to 8. The factory default is 4, which works well for most users, but the right setting depends on your symptoms and your room temperature.

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 the best solution. When paired with Climate Control Auto, the device automatically adjusts temperature and humidity based on your room conditions to virtually eliminate rainout.

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.

The most common cause is a humidity setting of 7 or 8 in an already warm room. The heater plate raises the water temperature to the set point, and if the room air is already warm, the result feels 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, ReMed Technical Specifications (p.16) state that the maximum delivered gas temperature is ≤ 106°F (41°C). If the air feels hotter than this despite your adjustments, it could indicate an internal heating fault.

Device Using Too Much Water

The HumidAir tub holds 380mL of water. Using 50 to 150mL per night is typical. If the tub is emptying completely every night, the humidity is too high, or the room is cold.

Cold air holds less moisture. Consequently, the humidifier must work harder and use more water to reach your target humidity level. This leads to faster consumption and potential condensation. In winter, lowering your humidity slightly can help.

Always use distilled water as recommended in the ResMed User Guide (p.4). Tap water leaves mineral deposits that scale the tub and reduce its efficiency. 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 the most common CPAP side effects, but they are almost never caused by a device fault. Fit, humidity level, and mask type are the primary variables. Here is how to fix each one.

Air Leaking Around the Mask

A leaking mask is the single biggest factor in making therapy uncomfortable. In the AirSense 10 AutoSet mode, a leak also causes the device to increase pressure to compensate, which often makes the leak even worse.

Most leaks happen because the cushion is the wrong size or worn out, or because the straps are overtightened. An important nuance highlighted by the Mayo Clinic is that overtightening the mask does not improve the seal. Instead, it distorts the cushion, creating more gaps for air to escape. You should adjust your straps until they are snug but not tight. You should be able to slide two fingers under the strap easily.

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 display a happy or sad face. 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.

This is especially common for those using a nasal pillow style, such as the AirFit P10 Nasal Pillow Mask, because the air goes directly into the nostrils. 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. Try moving it to 5 or 6. 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. This usually happens because you are using a nasal mask and your mouth drops open during sleep, breaking the therapy circuit.

The ResMed User Guide (p.12) suggests three specific solutions for this:

1. Increase Humidity: This reduces the dryness caused by the air itself.

2. Use a Chin Strap: A Best In Rest Adjustable Chin Strap helps keep your mouth closed, allowing the nasal mask to work effectively.

3. Switch to a Full Face Mask: Masks like the AirFit F20 or the hybrid AirFit F30 cover both the nose and mouth, eliminating mouth-breathing leaks entirely.

Both the AASM and the Mayo Clinic identify mouth breathing as the primary culprit behind CPAP Dry Mouth. If you find yourself waking up parched, switching mask styles is often the most effective move.

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AirSense 10 Error Codes & Device Messages

Most AirSense 10 error messages appear on screen with a short description and a suggested action. The most important ones, such as High Leak Detected, Heating System Fault, Motor Life Exceeded, and Error 0XX, are explained below. For any numbered Error 0XX, do not attempt to open the device. You should contact your care provider immediately.

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.

Numbered Error Codes — 0XX Series

If your machine displays a numbered error code, it typically refers to a specific hardware issue that requires professional attention.

For any Error 0XX or System Fault message, ResMed instructs users not to open the device. These errors require inspection by an authorized ResMed service agent. 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, located on the back or side of the device, ready when contacting support.

When to Contact ResMed or Your Provider

Most AirSense 10 problems can be solved in under 5 minutes with the steps in this guide. 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:

• Any Error 0XX appears on screen: These indicate hardware failures. Never attempt to open the device yourself.

• The device won't power on: If you have checked all connections and tried multiple outlets, but the screen remains black, the internal power board or brick may have failed.

• Frowning face in Sleep Report: If the humidifier icon shows a frown, the unit is not functioning correctly.

• Heating System Fault message: Your device will still deliver air, but the humidifier is disabled. This requires professional service to repair the heater plate.

• Motor Life Exceeded: Your machine has worked hard for approximately 21,900 hours. It is time for a motor replacement.

• Persistent water leaks: If the tub leaks after proper reassembly, it likely has invisible hairline cracks and needs to be replaced.

• Repeated midnight shutdowns: If the device shuts off with no obvious power or airflow cause, it needs a diagnostic check.

• Pressure feels incorrect: If therapy is uncomfortable after checking the Ramp and mask seal, your provider may need to adjust your prescribed pressure range.

• Unusual noises: grinding, whistling, or rattling sounds from inside the machine indicate motor wear.

Important Tips for Service

When you reach out for help, keep the device model and serial number handy. You can find these on the label located on the side or bottom of the machine. Having this information ready will speed up any warranty or service requests. For official technical help, you can visit the ResMed AirSense 10 Product Support page or browse the ResMed Air Solutions FAQ for more device-specific information.

Knowing the Design Life

Every piece of equipment has an expiration date. According to the ResMed User Guide Technical Specifications (p.17), 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.

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Frequently Asked Questions

Why is my ResMed AirSense 10 blowing too much air?

ResMed states in the AirSense 10 User Guide that strong airflow sensations often appear when Ramp Time is disabled, EPR is off, or when the device is stabilizing pressure. AutoSet may increase flow or pressure to compensate for leaks, but only to maintain the prescribed pressure, not to intentionally overshoot until it feels uncomfortable. If the airflow feels consistently excessive, a clinician should review the settings.

Why is my ResMed AirSense 10 pressure too high?

According to ResMed’s clinical documentation, pressure may feel high when the device compensates for a poor mask seal or when the prescribed pressure range is set too wide. Mayo Clinic also notes that leaks, nasal congestion, and incorrect settings frequently make pressure seem stronger than it is. If high pressure persists, a provider should check the therapy parameters.

Why is my ResMed CPAP not blowing air?

ResMed documentation explains that the device may not blow air if it is in standby mode, if SmartStart fails to trigger due to low initial flow, if the power supply is not fully connected, or if the filter is blocked. Hardware issues such as motor stall or a faulty flow sensor require inspection by an authorized ResMed service center.

Why is my ResMed AirSense 10 leaking water?

ResMed’s “Water Leak Checklist” states that leaks occur when the HumidAir chamber is not fully inserted, is overfilled, or has developed a visible or hidden crack. Side leaks often indicate improper assembly; bottom leaks may suggest unnoticed microcracks or a tilted chamber. Both points are widely discussed in user communities and match typical real-world troubleshooting.

Why is water getting into my CPAP hose?

Condensation in the tubing (“rainout”) happens when warm, humidified air cools inside the hose. This explanation is common in sleep therapy literature and recognized across CPAP communities, even though ResMed does not describe rainout in depth in the AirSense 10 manual. Lowering humidity, raising tube temperature, or using heated tubing typically reduces condensation.

Why does my CPAP cause dry mouth?

AASM and Mayo Clinic both explain that dry mouth is caused by air escaping through the mouth during CPAP therapy, especially when using a nasal mask. Low humidity and nasal blockage can worsen it. Increasing humidity, switching to a full face mask, or using a chin strap can help reduce dryness.

Why is my ResMed AirSense 10 screen black or not turning on?

ResMed indicates that the screen may turn off due to sleep mode, inactive backlight, or airplane mode. Pressing Home or the dial usually wakes it. If the device remains unresponsive, ResMed documentation points to power supply issues, a loose connection at the rear port, or a faulty internal board as possible causes.

Why is my ResMed CPAP leaking air around the mask?

ResMed states that leaks can result from a poor mask fit, an aging cushion, or incorrect sizing. The Mayo Clinic adds that overtightening can cause leaks rather than reduce them. Using the Mask Fit tool, gently adjusting straps, and replacing cushions when worn usually resolve the issue.

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 the device is overheating. ResMed warns that blocking the air inlet or placing the unit against a wall can trigger a safety shutdown to protect the motor. SmartStart might also stop therapy if it detects that you have removed your mask due to a significant seal leak. Keep the area around your machine clear, and check your power supply to ensure it stays powered on.

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. If you need to clear a minor glitch, perform a soft restart by unplugging the power cord for 30 seconds. For a total settings reset, you will need to 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 simply set to Off in your My Options menu. Double-check that this setting is set to at least level 4 to start seeing results. If the settings are correct, make sure the water tub is filled with distilled water and pushed in until it clicks, making contact with the heater plate. If you see a frowning face icon in your Sleep Report, the humidifier may have a hardware fault that requires professional service.

What does 'Heating System Fault' mean on ResMed AirSense 10?

A Heating System Fault message indicates that the internal heater plate or its control circuit board has failed. Your machine will continue to provide pressurized air so you can still use it for therapy, but the air will be cold and dry because the water is not being heated. This is a hardware issue that cannot be fixed at home. You should contact your provider to arrange for a repair by an authorized ResMed technician.

What do the ResMed AirSense 10 error codes mean?

ResMed AirSense 10 error codes are numbered faults (Error 001 through Error 020) that identify specific hardware failures inside the device. Each code points to a different component: Error 001 indicates a blower motor or pressure sensor fault, Error 006 is a motor stall, and Error 009 points to the main PC board. None of these can be fixed by the user. For a full breakdown of every code and what component it affects, see the numbered error code table in the AirSense 10 Error Codes section above. For any Error 0XX, note the exact number and contact your care provider — 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 hardware fault it cannot self-correct. The ResMed User Guide (p.15) instructs users not to attempt any repairs themselves, as there are no user-serviceable parts inside. Write down the exact error number displayed, then contact your DME supplier or ResMed support with your device model and serial number. Your device can typically be inspected or replaced under warranty if it is within its 5-year design life

References:

1. American Academy of Sleep Medicine (AASM). Clinical practice guideline on the use of PAP therapy for sleep apnea. Clinical guideline / professional society guidance. 

2. ResMed. AirView™ Report Guide (PDF). Reporting/therapy-data guide. 

3. ResMed. AirSense 10 device with Humidifier — User Guide (Americas, English) (PDF). Manufacturer user manual / instructions for use. . Accessed 19 Feb 2026.

4. ResMed (Sleep Health Blog). Avoid CPAP rainout. Educational article (manufacturer guidance).  Accessed 19 Feb 2026.

5. 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.

6. ResMed. Air Solutions — FAQs & troubleshooting. Product support FAQ (manufacturer support). . Accessed 19 Feb 2026.

7. ResMed Support. AirSense 10 CPAP — Product support page. Product support hub (manufacturer support).. Accessed 19 Feb 2026.

8. Mayo Clinic. CPAP machines: Tips for avoiding 10 common problems . Accessed 13 Mar 2026.