CPAP Troubleshooting Guide: 10 Common Problems and Simple Fixes
Starting CPAP therapy can be life changing for people with obstructive sleep apnea, but getting comfortable with a CPAP machine does not always happen overnight.
You may wake up with a dry mouth, notice air leaking around your mask, struggle with nasal congestion, or find yourself taking the mask off while you sleep. Some people feel claustrophobic, while others have difficulty getting used to the pressure or experience stomach discomfort and bloating.
The good news is that many common CPAP problems can be addressed with the right troubleshooting and support. The American Academy of Sleep Medicine emphasizes the importance of troubleshooting interventions and appropriate CPAP follow-up care during PAP therapy, while the National Heart, Lung, and Blood Institute recommends talking with your healthcare provider when problems with your mask, comfort, or PAP therapy occur.
Here are 10 common CPAP problems and practical steps that may help.
1. Your CPAP Mask Is Leaking
A mask leak can be uncomfortable and may interfere with effective PAP therapy. You may hear air escaping, feel air blowing toward your eyes, or notice that your machine is reporting a high leak.
A common cause is an improper mask fit. Your mask should create a comfortable seal without being so tight that it causes pressure marks or discomfort.
What you can try:
Adjust the mask while lying in your normal sleeping position. Check that the mask is sitting correctly on your face and that the straps are not excessively tight. If the leak continues, your sleep care team may recommend exploring our complete guide to CPAP masks and fitting options to find a style better suited to your sleeping habits.
The NHLBI recommends adjusting the mask while lying down with the machine running and discussing persistent leaks with your healthcare provider.
When should you call your sleep provider?
If you continue to experience significant leaks despite adjusting the mask, contact your sleep team. Your provider may need to assess the fit during a dedicated CPAP clinic visit or consider another interface.
2. You Wake Up With a Dry Mouth
Dry mouth is a common complaint among CPAP users.
It can occur when air passes through your mouth during sleep, particularly if you are using a nasal mask or nasal pillows and tend to breathe through your mouth.
What you can try:
Talk with your sleep provider about whether heated humidification, a full face mask, or a chin strap may be appropriate for you. Do not simply stop using CPAP because of dryness; maintaining your prescribed therapy is essential for long-term health. Understanding the life-changing benefits of CPAP therapy and ongoing care can help keep you motivated as we resolve equipment issues.
3. Your Nose Is Congested or Stuffy
Nasal congestion can make CPAP feel much more difficult to tolerate.
You may feel as though you cannot breathe comfortably through your nose, particularly if you already have allergies, a cold, or another cause of nasal obstruction.
What you can try:
Talk with your healthcare provider about your nasal symptoms. Depending on the cause, your provider may recommend humidification or an appropriate nasal treatment. Your mask type may also need to be reassessed. Do not assume that increasing or changing pressure will solve nasal congestion without clinical guidance.
4. Your Mask Is Hurting Your Face
A CPAP mask should be secure, but it should not cause significant pain.
You may notice redness around your nose, pressure marks, irritation, or discomfort where the mask contacts your skin.
What you can try:
First, check whether the straps are too tight. A mask that is overtightened can sometimes be less comfortable without necessarily creating a better seal. Your provider may also recommend changing the mask size, style, or cushion material. If irritation continues, learn what happens during a CPAP clinic visit so our clinical staff can personally re-fit your mask.
5. You Feel Claustrophobic Wearing the Mask
Some people find the feeling of wearing a mask at night uncomfortable or anxiety provoking.
This is particularly common when someone is new to CPAP therapy.
What you can try:
Give yourself time to acclimate. You can practice wearing the mask while awake for short periods, such as while reading or watching television. This can help you become familiar with the sensation before trying to sleep with it. If your current mask feels restrictive, ask whether nasal pillows or another lightweight interface might be appropriate.
6. You Keep Taking Your Mask Off During Sleep
You may go to sleep wearing your CPAP mask and discover in the morning that you removed it without remembering.
This can happen when you are still adjusting to the equipment, when the mask is uncomfortable, or when leaks or pressure interfere with sleep.
What you can try:
First, identify what may be causing you to remove it. Is the mask uncomfortable? Is there excessive air leaking? Are you experiencing congestion? Addressing the underlying problem makes it easier to keep the mask on throughout the night.
7. You Have Trouble Falling Asleep With CPAP
Sometimes the machine itself is not the only problem. You may simply need time to learn how to sleep comfortably with the mask and airflow.
What you can try:
Wear the mask while awake for short periods to become comfortable with it. Maintain a consistent bedtime routine and make your sleep environment comfortable. If the sensation of pressure makes it difficult to fall asleep, talk with your sleep provider about comfort features, such as ramp settings or Expiratory Pressure Relief (EPR).
8. You Wake Up With a Runny Nose or Nosebleeds
CPAP can sometimes contribute to nasal dryness or irritation, resulting in a runny nose, congestion, or nosebleeds.
What you can try:
Talk with your provider about humidification and whether your current mask and setup are appropriate. If you frequently experience nosebleeds, your provider can help determine the cause and appropriate treatment.
9. You Feel Bloated or Have Stomach Discomfort
Some people experience bloating, abdominal discomfort, or a feeling of having swallowed air while using PAP therapy. This is known as aerophagia.
What you can try:
If you develop significant stomach discomfort or bloating while using CPAP, contact your healthcare provider promptly. Your provider may review your therapy data and determine whether adjustments to pressure settings, mask selection, or breathing technique are needed. Do not change your pressure settings on your own.
10. You Are Still Tired Even Though You Use CPAP
One of the most frustrating experiences is continuing to feel tired after starting CPAP.
Persistent daytime sleepiness may have several possible explanations. You may not be using the machine for your entire sleep duration, there may be hidden mask leaks, or another health factor may be involved. Protecting sleep health is vital—recent medical research highlights how CPAP therapy can lower mortality risks and protect heart health when used consistently.
A Quick CPAP Troubleshooting Checklist
- Check your mask fit: Position it correctly while lying down and ensure a comfortable seal.
- Check for leaks: Listen for escaping air and ensure air is not blowing toward your eyes.
- Check your humidification: Adjust settings or ask your clinician if you experience dryness.
- Check your equipment: Ensure tubing, filters, and mask parts are clean and damage-free.
- Contact your sleep provider: Seek professional clinical assistance when issues persist.
Should You Change Your CPAP Pressure Yourself?
No. Your prescribed pressure or pressure range is a medical prescription. Changing it without professional guidance could reduce the effectiveness of your therapy. Your sleep provider can review your device data to determine if a prescription change is safe and appropriate.
When Should You Contact Your Sleep Specialist?
Contact your sleep provider if your mask continues to leak, you cannot tolerate the pressure, persistent dryness occurs, you frequently remove the mask in your sleep, or you experience stomach bloating. If you have not yet been formally evaluated for sleep apnea, scheduling a home sleep study in Athens is the first step toward diagnosis and treatment.
CPAP Troubleshooting Self Assessment
Ask yourself these questions before your next visit:
- Am I using CPAP every time I sleep, including naps?
- Does my mask remain comfortable throughout the night?
- Do I notice air leaking around the mask into my eyes?
- Do I wake up with a dry mouth or congested nose?
- Am I removing the mask during sleep without realizing it?
- Am I still excessively sleepy during the day?
- Have I experienced stomach bloating or gas?
- Do I know how to clean and maintain my equipment properly?
Frequently Asked Questions About CPAP Troubleshooting
1. Why is my CPAP mask leaking?
A mask may leak because of incorrect strap tension, improper sizing, worn cushion seals, or changing sleeping positions. Adjust your mask while lying down, or contact your sleep team for a mask refitting.
2. How can I stop dry mouth from CPAP?
Dry mouth is usually caused by mouth breathing while using a nasal mask or improper humidity settings. Increasing heated humidification or transitioning to a full face mask often resolves the issue.
3. Why does CPAP make my nose stuffy?
Airflow can dry out nasal passages, causing inflammation and congestion. Using heated humidification, nasal saline sprays, or addressing underlying allergies can help ease nasal stuffiness.
4. Should I stop using CPAP if it feels uncomfortable?
No. Do not give up on treatment. Most discomfort issues can be resolved with mask changes, humidity tweaks, or comfort settings. However, if you experience severe stomach bloating (aerophagia), contact your provider promptly.
5. Can I change my CPAP pressure myself?
No. Pressure settings are prescribed medical parameters. Changing pressure without clinician oversight can compromise treatment efficacy and cause side effects.
6. How long does it take to get used to CPAP?
Adaptation varies. Some patients adjust within a few days, while others take several weeks of gradual practice and equipment fine-tuning to feel completely comfortable.
7. What if I am still tired after using CPAP?
Persistent fatigue warrants clinical evaluation. Your provider can analyze machine data during a CPAP clinic visit to check for high leak rates, residual breathing events, or insufficient total sleep time.
Expert Care in Athens, Georgia
At the Athens Sleep and Wellness Center, managed alongside the team at Athens Heart Center on Prince Avenue, we help patients troubleshoot CPAP challenges and achieve restorative sleep.
Explore our sleep educational resources or contact our clinical team to schedule your follow-up appointment.
Athens Sleep and Wellness Center
📍 Location: 2005 Prince Ave, Athens, GA 30606
📞 Phone: (706) 613-6990
🌐 Website: ahcsleepcenter.com
Medical Disclaimer: This article is intended for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding your CPAP therapy or machine settings. Never alter prescribed pressure settings without medical supervision.