Using a CPAP machine should improve your sleep, not interrupt it. When problems appear, they can feel frustrating especially if you rely on therapy every night. This guide explains how to identify and fix the most common issues users face with the ResMed AirSense 10, helping you restore effective, comfortable treatment as quickly as possible.
The advice below is practical, easy to follow, and suitable for UK users using CPAP masks, tubing, humidifiers, and accessories at home.
Common CPAP Issues and How to Fix Them
Machine Not Turning On
If your device does not power up, the issue is often simple.
Check the following:
-
Power cable is securely connected
-
Wall socket is working
-
Power supply is not damaged
-
No loose connections at the back of the device
If the screen remains blank, avoid opening the unit yourself. Electrical issues should always be handled by an authorised service provider.
Unusual Noise During Use
A CPAP machine should operate quietly. Sudden or loud noises usually indicate an airflow problem.
Common causes include:
-
Loose tubing connections
-
Mask cushion not sealing properly
-
Dirty or worn air filter
-
Water chamber not seated correctly
Replace worn parts and clean components regularly to maintain quiet operation.
Mask and Air Leak Problems
Air Leaks Around the Mask
Air leaks reduce therapy effectiveness and can disturb sleep.
Try these adjustments:
-
Refit the mask while lying down
-
Adjust headgear evenly (not too tight)
-
Replace cushions that have lost shape
-
Check mask size and style suitability
If leaks persist, switching to a different mask type may provide a better seal.
Dry Mouth or Nose
Dryness is common, especially during colder months in the UK.
Helpful solutions:
-
Increase humidifier settings gradually
-
Ensure the water chamber is filled nightly
-
Use heated tubing if available
-
Check for mouth breathing during sleep
Humidification accessories often resolve this issue without changing pressure settings.
Pressure and Comfort Issues
Pressure Feels Too Strong or Too Weak
If breathing feels uncomfortable, pressure delivery may not be optimised.
Possible steps:
-
Use the ramp feature to ease into therapy
-
Check that the mask type is correctly selected in settings
-
Ensure filters are clean for proper airflow
Pressure changes should only be made after consulting a sleep professional.
Difficulty Exhaling
Some users experience resistance when breathing out.
You may benefit from:
-
Expiratory pressure relief features
-
Ensuring the mask vents are clear
-
Checking for blocked tubing
Comfort settings are designed to improve tolerance without affecting therapy quality.
Water and Humidifier Issues
Water in the Tubing
Condensation, also called “rainout,” is a common humidification issue.
To reduce moisture buildup:
-
Lower humidity level slightly
-
Use heated tubing
-
Keep the machine lower than the bed
-
Ensure room temperature is stable
This helps maintain comfortable airflow throughout the night.
Water Chamber Leaks
Leaks usually occur due to wear or improper placement.
Check for:
-
Cracks in the chamber
-
Incorrect insertion
-
Overfilling beyond the maximum line
Replace damaged chambers promptly to prevent machine damage.
Error Messages and Alerts
Blocked Tube or High Leak Alerts
These alerts indicate airflow restriction.
Inspect:
-
Tubing for bends or blockages
-
Mask vents for dust buildup
-
Filters for dirt or moisture
Cleaning or replacing affected parts usually clears the alert quickly.
Cleaning and Maintenance Best Practices
Proper care prevents most issues before they start.
Daily:
-
Empty and rinse water chamber
-
Wipe mask cushion
Weekly:
-
Wash tubing, mask, and chamber
-
Replace or clean filters as needed
Routine maintenance extends the life of your CPAP equipment and improves therapy comfort.
When to Seek Professional Support
If problems continue despite troubleshooting:
-
Persistent error messages
-
Power failures
-
Pressure discomfort affecting sleep
-
Visible device damage
Contact a UK-based CPAP supplier or sleep clinic for assessment. Avoid self-repairs that could void warranties.
Frequently Asked Questions
Why does my CPAP mask keep leaking at night?
Leaks are often caused by incorrect fit, worn cushions, or changes in sleeping position.
How often should CPAP filters be replaced?
Disposable filters are typically replaced every 30 days, depending on usage and air quality.
Is condensation in the tubing harmful?
No, but it can disrupt sleep. Adjusting humidity or using heated tubing usually resolves it.
Final Thoughts
Most CPAP issues can be resolved with small adjustments, routine maintenance, or replacing worn accessories. Understanding how your equipment works helps you stay consistent with therapy and enjoy better sleep quality long term.
If you need replacement masks, tubing, filters, or expert guidance, always choose a trusted UK supplier experienced in sleep therapy equipment.
