Article: Is Your CPAP Machine Failing You? 10 Warning Signs to Watch

Jan 8, 2025

Is Your CPAP Machine Failing You? 10 Warning Signs to Watch

Q: Why Buy From US CPAP?

Why Choose Us Over the Competition? We stand out from the competition for several key reasons: Trusted Authorized Dealer: Manufacturer-Backed Warranty: Unbeatable Pricing: Expert Support: We are committed to providing high-quality CPAP equipment and exceptional service. Choose us for a seamless experience from purchase to post-sale care.

Q: Are you an Authorized ResMed Dealer?

Yes, we are an authorized ResMed dealer and have been for over 10 years. We purchase all our products directly from ResMed, guaranteeing that every item you receive is authentic and of the highest quality . Additionally, all ResMed products we sell come with lot numbers and/or serial numbers , providing full traceability and authenticity. Rest assured, every product is backed by the manufacturer’s warranty , giving you peace of mind with every purchase.

Q: Can I buy a CPAP machine without a prescription?

In the United States, under federal law , CPAP machines are classified as Class II medical devices by the FDA. As such, they require a prescription from a licensed healthcare provider for purchase. This classification is in place because CPAP therapy is considered a medical treatment that needs to be customized for each patient's condition and safety. A prescription ensures that your treatment is appropriate and monitored by a healthcare professional. Most suppliers, including USA Medical Supply, will not ship a CPAP machine without first receiving a valid prescription. You can submit your prescription through the following methods: Text : (413) 200-4191 Email : info@usamedicalsupply.com Fax : (413) 732-2238 This requirement ensures compliance with federal regulations and guarantees you receive the correct equipment and pressure settings.

Q: Differences Between CPAP, APAP, and BiLevel?

CPAP (Continuous Positive Airway Pressure) delivers a fixed pressure throughout the night. APAP (Auto-Adjusting Positive Airway Pressure) automatically adjusts pressure based on your breathing patterns. BiPAP (Bi-Level Positive Airway Pressure) provides two different pressure levels — one for inhalation and a lower one for exhalation. BiPAP is typically recommended for users with specific needs or those who find CPAP uncomfortable.

Introduction

Continuous Positive Airway Pressure (CPAP) therapy is a mainstay treatment for obstructive sleep apnea and other breathing-related sleep disorders. When your CPAP machine works properly, it helps keep your airway open, allowing for restful sleep and improved overall health. However, if your machine experiences malfunctions or is not set up correctly, you may not receive the therapy you need. This article identifies the most common signs that your CPAP machine—particularly the ResMed AirSense 10 or AirSense 11—isn’t operating at peak performance and offers actionable solutions to help you sleep better.

1. Persistent Mask Leaks

Symptom

Air blowing into your eyes or escaping from the sides of the mask.
A higher leak percentage on your machine’s display or in your therapy data.

Why It Matters

Mask leaks can diminish the effectiveness of CPAP therapy by preventing the necessary air pressure from stabilizing your airway. Chronic leaks can also lead to dry eyes or skin irritation.

Troubleshooting

Check Fit and Size: Ensure the mask you’re using is properly sized for your face.
Adjust Headgear: Tighten or loosen the straps to minimize leaks.
Consider a Different Mask Style: Nasal pillow, nasal, or full-face masks may suit different sleeping positions or facial structures.
Inspect Components: Worn-out cushions, seals, or straps may need replacing more often than you think.

2. Frequent Dryness in Mouth, Throat, or Nasal Passages

Symptom

Waking with a dry mouth or nasal passages.
Feeling congested or having a sore throat in the morning.

Why It Matters

Moisture is crucial for comfortable and effective therapy. CPAP dryness can lead to throat irritation, congestion, and can make using the machine uncomfortable.

Troubleshooting

Enable or Adjust Humidification: Both the AirSense 10 and AirSense 11 have integrated heated humidifiers. Increase or decrease your humidification level according to your comfort.
Add Heated Tubing: Heated tubing (e.g., ResMed ClimateLineAir) helps maintain consistent temperature and humidity.
Use a Chin Strap: If you breathe through your mouth, a chin strap or a full-face mask can help combat dryness.

3. Lower-than-Expected Pressure Delivery

Symptom

Feeling as though the air pressure is not as strong as it once was.
Experiencing symptoms of sleep apnea (daytime fatigue, snoring, or gasping at night) even though you’re using your CPAP consistently.

Why It Matters

CPAP therapy relies on consistent, calibrated pressure. If your machine isn’t delivering the correct pressure, sleep apnea symptoms may return or worsen.

Troubleshooting

Check the Settings: Compare the displayed pressure setting with your prescribed pressure.
Assess AutoRamp™ Feature: Both AirSense 10 and 11 come with AutoRamp™ which starts at a lower pressure and gradually increases. Disable this feature if you suspect it’s too gentle or taking too long to ramp up.
Consult a Professional: A drop in pressure could indicate internal machine issues or a need for recalibration.

4. Unusual Noises or Whistling Sounds

Symptom

Hearing rattling, buzzing, or high-pitched whistling from your machine.
Noise levels that are louder than the normal soft hum.

Why It Matters

Excessive noise can signal mechanical failures or loose components. A whistling sound often indicates an improperly seated seal or damaged tubing.

Troubleshooting

Secure All Connections: Double-check that the humidifier chamber, tubing, and filters are firmly attached.
Replace Filters & Tubing: Worn or blocked filters and torn tubing can cause noise.
Call Customer Support: If tightening connections doesn’t help, a part inside may need repair or replacement.

5. Erratic or Inconsistent Data Readings

Symptom

Therapy data (leak rate, AHI, usage hours) fluctuates wildly day to day.
Data missing or not syncing in the myAir™ app (for AirSense models).

Why It Matters

Accurate data is crucial for tracking your sleep health. Inconsistent data points may indicate an internal software or sensor issue.

Troubleshooting

Update Firmware (if applicable): Check if an update is available for your CPAP machine or myAir app.
Check Wi-Fi or Cellular Connection: If your data isn’t syncing, verify that your machine has a stable connection (AirSense 11 uses cellular and/or Wi-Fi).
Consult Your Sleep Specialist: If your numbers are truly erratic and not just sync errors, a machine recalibration or thorough diagnostic may be necessary.

6. Overheating or Unusual Smell

Symptom

A burnt plastic or chemical odor coming from the device.
The machine is excessively hot to the touch, especially around the motor or humidifier compartment.

Why It Matters

Any sign of overheating is a serious concern as it can lead to machine failure or, in the worst case, pose a fire risk. Unusual smells might indicate a problem with internal components.

Troubleshooting

Unplug & Let It Cool: Turn off and unplug your CPAP machine. Let it cool down fully before inspecting.
Inspect the Water Chamber & Tubing: Sometimes mold or mildew can cause off-smells—cleaning or replacing the water chamber and tubing may fix this.
Service or Replace: If overheating persists, discontinue use and contact a professional to assess the machine.

7. Visible Wear and Tear or Discoloration

Symptom

Cracks in the machine housing, hose, or water chamber.
Discoloration, especially brownish or yellowish tints on plastic components.

Why It Matters

Wear and tear can compromise the integrity of the machine, causing air leaks or safety risks. Discoloration might indicate overheating or chemical degradation.

Troubleshooting

Regular Inspection: Check your CPAP components every few weeks for physical damage.
Replace Damaged Parts: Using cracked or yellowed components can reduce therapy effectiveness and potentially cause health or safety issues.
Contact Manufacturer/Provider: If the device housing is compromised, consult your durable medical equipment supplier or ResMed’s customer service.

8. Alarms or Error Messages

Symptom

The AirSense 10 or 11 displays error messages, warning lights, or unusual on-screen prompts.

Why It Matters

Modern CPAP machines are equipped with error detection. Ignoring warnings can lead to more severe issues later.

Troubleshooting

Follow On-Screen Instructions: Often, the CPAP machine gives basic guidance on how to correct the error.
Reset the Device: Power down for at least 30 seconds, then turn it back on.
Consult the Manual or ResMed Support: Persistent or frequent errors could mean a deeper mechanical or sensor problem.

9. Prolonged Ramp Time or Abnormal Pressure Changes

Symptom

The pressure stays low for too long, or suddenly surges higher.
You find yourself waking due to sudden changes in air pressure.

Why It Matters

If your CPAP’s algorithms for AutoRamp™ or auto-adjusting pressure (if you have an APAP version) aren’t working correctly, you won’t receive the therapeutic pressure at the right time.

Troubleshooting

Verify Machine Settings: Ensure your Ramp Time, SmartStart™, or pressure range (for APAP devices) align with your prescription and comfort level.
Clean Sensors & Filters: Blocked filters or dirty sensors can hamper airflow detection.
Update or Recalibrate: Sometimes a software update or in-clinic recalibration is required.

10. Inconsistent Sleep Quality

Symptom

Feeling fatigued, experiencing morning headaches, or noticing a relapse of apnea symptoms.
Loved ones observe increased snoring or breathing pauses during your sleep.

Why It Matters

This can be an overarching sign that your machine, mask, or settings might not be properly optimized.

Troubleshooting

Review Therapy Data: Look at your average pressure, leak rate, and AHI (Apnea-Hypopnea Index) on your CPAP’s display or in the myAir app.
Consult Your Sleep Specialist: Your prescription may need updating, or you may need a different type of mask to ensure effective therapy.
Regular Follow-Ups: Periodic sleep studies or professional evaluations can confirm your current therapy settings are still appropriate.

Maintenance Tips for ResMed AirSense 10 & AirSense 11

Daily Mask and Cushion Wipe-Down: Gentle soap and warm water or mask wipes will help remove oils and dirt.
Weekly Tubing & Humidifier Cleaning: Use a mild soap solution to clean and rinse thoroughly. Let it air-dry before reassembly.
Filter Changes: ResMed recommends checking filters every month and replacing them regularly (at least every 3–6 months) or sooner if visibly dirty.
Regular Software/Firmware Updates: Check with your CPAP provider or ResMed’s website for updates that may optimize performance.
Annual Machine Inspection: Schedule an annual checkup with a qualified technician or your healthcare provider to ensure everything is working optimally.

Conclusion

Your CPAP machine is a vital component of your nightly routine, ensuring you get the restful sleep your body needs. Knowing the signs of potential issues—like persistent leaks, unusual noises, inconsistent data, or ongoing apnea symptoms—empowers you to act quickly and minimize disruptions to your therapy. By following the troubleshooting steps above and staying in close contact with your sleep specialist or CPAP equipment provider, you can keep your ResMed AirSense 10 or AirSense 11 operating at peak performance for years to come.

Bibliography

ResMed Official Website
- ResMed AirSense 10
- ResMed AirSense 11
Kribbs, N. B., Pack, A. I., Kline, L. R., et al. (1993). Objective Measurement of Patterns of Nasal CPAP Use by Patients with Obstructive Sleep Apnea. American Review of Respiratory Disease, 147(4), 887–895.
Epstein, L. J., Kristo, D., Strollo, P. J., et al. (2009). Clinical Guideline for the Evaluation, Management, and Long-term Care of Obstructive Sleep Apnea in Adults. Journal of Clinical Sleep Medicine, 5(3), 263–276.
Sullivan, C. E., Issa, F. G., Berthon-Jones, M., & Eves, L. (1981). Reversal of Obstructive Sleep Apnoea by Continuous Positive Airway Pressure Applied through the Nares. The Lancet, 317(8225), 862–865.
U.S. Food & Drug Administration. (2021). CPAP Devices and Sleep Apnea. Retrieved from FDA.gov

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Frequently Asked Questions

Order

Do you have a Retail Location?

Yes, you can absolutely walk in and buy CPAP supplies from us! USA Medical Supply, located at 1779 Riverdale Street, West Springfield, MA 01089, offers one of the largest DME & CPAP retail locations around. Our licensed respiratory therapists are available on-site to assist you, and our walk-in hours are:

Monday - Friday: 9 AM - 6 PM
Saturday: 9 AM - 2 PM
Sunday: Closed

Feel free to stop by anytime during these hours for your CPAP and medical supply needs!

Why Buy From US CPAP?

Why Choose Us Over the Competition?

We stand out from the competition for several key reasons:

Trusted Authorized Dealer:
Manufacturer-Backed Warranty:
Unbeatable Pricing:
Expert Support:

We are committed to providing high-quality CPAP equipment and exceptional service. Choose us for a seamless experience from purchase to post-sale care.

Are you an Authorized ResMed Dealer?

Yes, we are an authorized ResMed dealer and have been for over 10 years. We purchase all our products directly from ResMed, guaranteeing that every item you receive is authentic and of the highest quality. Additionally, all ResMed products we sell come with lot numbers and/or serial numbers, providing full traceability and authenticity.

Rest assured, every product is backed by the manufacturer’s warranty, giving you peace of mind with every purchase.

Do you use Licensed Respiratory Therapists?

Our team is available Monday through Friday from 9 a.m. to 6 p.m., and Saturdays from 9 a.m. to 2 p.m. We also offer walk-in consultations for a fee, perfect for those seeking consultation services only. Our Licensed Respiratory Therapists—Monica, Richard, and Natalia—each bring over 12 years of experience setting up CPAP patients. Their extensive backgrounds include working in hospital settings such as the ICU and emergency room, making us a standout choice for your PAP needs.

Can I buy a CPAP machine without a prescription?

In the United States, under federal law, CPAP machines are classified as Class II medical devices by the FDA. As such, they require a prescription from a licensed healthcare provider for purchase. This classification is in place because CPAP therapy is considered a medical treatment that needs to be customized for each patient's condition and safety.

A prescription ensures that your treatment is appropriate and monitored by a healthcare professional. Most suppliers, including USA Medical Supply, will not ship a CPAP machine without first receiving a valid prescription. You can submit your prescription through the following methods:

Text: (413) 200-4191
Email: info@usamedicalsupply.com
Fax: (413) 732-2238

This requirement ensures compliance with federal regulations and guarantees you receive the correct equipment and pressure settings.

Do you accept insurance?

No, and we are not contracted with any provider. We do provide a Universal Claim Form that you can download [here] if you wish to try and get reimbursed yourself.

Insurance billing using a Universal Claim Form (UCF) involves submitting a standardized document to your insurance provider to request reimbursement for medical expenses. However, it is not guaranteed that you will be reimbursed, and we are not implying that you will be. It is important to check with your insurance provider to understand your coverage and eligibility for reimbursement, especially for durable medical equipment (DME) like CPAP machines and supplies.

Here’s how the process typically works:

1. Obtain a Universal Claim Form

The UCF is usually provided by your insurance company or available on their website. The form includes sections to detail the medical services or products you've received, such as CPAP supplies, and what you're seeking reimbursement for.

2. Complete the Form

Personal Information: Enter your personal details, including your name, insurance policy number, and contact information.
Provider Information: Include details of the healthcare provider or supplier (such as USA Medical Supply), like their name, address, and tax identification number (TIN).
Service Details: Provide specific information about the medical service or product. For CPAP equipment, this might include the model number, date of purchase, and a description of the equipment (e.g., CPAP machine, mask, tubing).
Cost and Charges: Indicate the total cost, including what you've already paid out-of-pocket.

3. Attach Supporting Documentation

Receipts: Attach copies of receipts for the medical service or product you've purchased.
Prescription: If required, include a copy of the prescription from your healthcare provider for the CPAP equipment.
Explanation of Benefits (EOB): If your insurance company has already processed part of the claim, include any EOB documents that detail what they have paid and what remains your responsibility.

4. Submit the Claim Form

Send the completed form and all supporting documentation to the address provided by your insurance company. Some insurers may allow you to submit the form electronically, while others may require it to be mailed.

5. Review and Processing

Once submitted, your insurance company will review the claim and determine the amount of reimbursement based on your policy’s coverage for durable medical equipment (DME), such as CPAP machines and supplies. The insurer may contact you or the supplier if more information is needed.

6. Receive Reimbursement

After approval, the insurance company will send you a reimbursement check or direct deposit for the amount they cover, minus any deductibles or co-payments.

Things to Note:

Coverage Varies: Insurance policies differ in their coverage for DME, so check with your provider to understand your benefits.
Out-of-Network Providers: If your supplier is out-of-network, you might receive partial or no reimbursement.
Time Limit: Ensure you submit the claim within the time frame allowed by your insurance provider, as delays can result in denial.

Please remember, reimbursement is not guaranteed. You need to verify all details with your insurance provider.

Additionally, we do accept HSA/FSA payments, which you may be able to use to cover the cost of CPAP equipment and supplies.

Replacement Schedule for CPAP Supplies?

To maintain effective therapy, it’s essential to replace certain CPAP components regularly:

Mask Cushions: Every 1-3 months
Tubing: Every 6-12 months
Filters: Every 1-3 months
Headgear: Every 6 months These recommendations ensure your equipment stays in optimal condition and your therapy remains effective.

How to Clean and Maintain CPAP Equipment?

Cleaning your CPAP equipment regularly is crucial for effective therapy and hygiene:

CPAP Mask and Tubing: Wash weekly with warm water and mild detergent. Let it air dry completely before use.
Humidifier Chamber: Clean once a week with mild soap and warm water, and replace it every 6 months.
CPAP Machine Exterior: Wipe down weekly with a dry, non-abrasive cloth. Avoid using ozone-based cleaning devices as they may damage your machine and void warranties.

Differences Between CPAP, APAP, and BiLevel?

CPAP (Continuous Positive Airway Pressure) delivers a fixed pressure throughout the night.
APAP (Auto-Adjusting Positive Airway Pressure) automatically adjusts pressure based on your breathing patterns.
BiPAP (Bi-Level Positive Airway Pressure) provides two different pressure levels — one for inhalation and a lower one for exhalation. BiPAP is typically recommended for users with specific needs or those who find CPAP uncomfortable.

How to Choose a CPAP Mask?

Choosing the right mask is key for comfort and therapy compliance:

Full Face Mask: Best for mouth breathers or those with nasal congestion.
Nasal Mask: Ideal for those who breathe through their nose and move around during sleep.
Nasal Pillow Mask: Great for users who prefer minimal contact with their face. If unsure, our customer support can guide you through finding the best option based on your preferences.

Traveling with a CPAP Machine?

CPAP machines are FAA-approved and can be carried as a medical device during air travel. We do Sell Travel Models.Our Travel Models are compact enough to use during flights. Consider investing in a portable battery for convenience if you frequently travel.

How Do Heated and Non-Heated Tubing Differ?

Heated Tubing: Helps prevent condensation buildup by maintaining consistent temperature from the humidifier to your airway. Also they have an anti-microbial effect by preventing condensation from building in the tubing.
Non-Heated Tubing: More affordable, lighter, and suitable if you don’t experience condensation issues. It’s compatible with most CPAP machines and masks.

What are the Signs of Sleep Apnea?

Common signs of sleep apnea include:

Loud snoring
Gasping or choking during sleep
Daytime fatigue
Morning headaches If you experience these symptoms, consult a healthcare provider for a sleep study to diagnose sleep apnea.

Click Here For More Details

How Do I Prevent Bloating or Excess Gas When Using CPAP?

If you experience bloating, elevate your head while sleeping to help reduce the swallowing of air. Persistent issues should be discussed with your doctor, who may recommend adjusting the pressure settings or trying a BiLevel machine.

Is Your CPAP Machine Failing You? 10 Warning Signs to Watch

Introduction

1. Persistent Mask Leaks

Symptom

Why It Matters

Troubleshooting

2. Frequent Dryness in Mouth, Throat, or Nasal Passages

Symptom

Why It Matters

Troubleshooting

3. Lower-than-Expected Pressure Delivery

Symptom

Why It Matters

Troubleshooting

4. Unusual Noises or Whistling Sounds

Symptom

Why It Matters

Troubleshooting

5. Erratic or Inconsistent Data Readings

Symptom

Why It Matters

Troubleshooting

6. Overheating or Unusual Smell

Symptom

Why It Matters

Troubleshooting

7. Visible Wear and Tear or Discoloration

Symptom

Why It Matters

Troubleshooting

8. Alarms or Error Messages

Symptom

Why It Matters

Troubleshooting

9. Prolonged Ramp Time or Abnormal Pressure Changes

Symptom

Why It Matters

Troubleshooting

10. Inconsistent Sleep Quality

Symptom

Why It Matters

Troubleshooting

Maintenance Tips for ResMed AirSense 10 & AirSense 11

Conclusion

Bibliography

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Frequently Asked Questions

1. Obtain a Universal Claim Form

2. Complete the Form

3. Attach Supporting Documentation

4. Submit the Claim Form

5. Review and Processing

6. Receive Reimbursement

Things to Note: