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ErrBase

ResMed CPAP Error 006: Device Alert and Check Mask on AirSense 10

Quick Answer

ResMed's three-digit 006 code is a therapy alert, distinct from the single or double-digit hardware E-codes on the AirSense 10. The 006 alert fires when the device's leak detection algorithm registers a persistent condition it cannot auto-correct - most commonly a mask that has shifted during therapy, worn cushion seals, or a patient switching to mouth breathing with a nasal mask.

ResMed's three-digit 006 code is a therapy alert, distinct from the single or double-digit hardware E-codes on the AirSense 10. The 006 alert fires when the device's leak detection algorithm registers a persistent condition it cannot auto-correct - most commonly a mask that has shifted during therapy, worn cushion seals, or a patient switching to mouth breathing with a nasal mask. The AirSense 10 AutoSet model attempts automatic pressure adjustments to compensate for leaks before triggering 006, so when the code appears the leak has already exceeded what the device can correct on its own. Replacing the mask cushion and ensuring correct headgear tension resolves the majority of 006 alerts. A factory reset (Settings > Device > Reset Device) is the second step if the cushion check does not resolve it.

ResmedCpapSeverity: medium80% DIY Success
Time to Fix
5–20 min
Difficulty
beginner
Parts Cost
$0 – $0
Tools Needed
CPAP mask cleaning wipes, Mild soap and warm water (for cushion cleaning)

What Does the 006 Code Mean?

Error 006 is a therapy alert for an unresolvable mask or sensor condition - usually a mask fit issue rather than a hardware fault.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Mask cushion worn and no longer sealing40%
Headgear too loose allowing mask to shift during sleep24%
Mouth breathing with a nasal-only mask14%
Mask not reseated after cleaning12%
Incorrect mask size for face geometry10%

Symptoms You May Notice

  • Screen displays 006 code at end of therapy or during session
  • Mask blowing air noisily around the seal
  • Waking up with dry eyes from mask air leak
  • Therapy terminated early by device
  • Low AHI control despite using device all night

Can you reset a Resmed cpap to clear the 006 code?

AirSense 10: hold the home button for 5 seconds, then navigate to Settings > Device > Reset Device. AirSense 11: tap the Settings cog > My Options > Device Options > Reset.

Tools Required for Diagnosis

CPAP mask cleaning wipesMild soap and warm water (for cushion cleaning)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Put on the mask as you would for therapy and press the

Put on the mask as you would for therapy and press the Start/Stop button to initiate a mask fit check (if available on your model). Look at the leak indicator. Adjust headgear straps so the mask sits snug but not so tight it causes pressure marks - the cushion should seal without pressing hard.

2

Remove the cushion from the mask frame and inspect it

3

Unplug the device for 30 seconds, then plug it back in

4

Perform a factory reset. AirSense 10

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
ResMed AirFit mask cushion (replacement cushion for your specific mask model - AirFit F20, P10, N20, etc.)N/A · $0–$0
ResMed headgear replacement strapsN/A · $0–$0

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPLACE
Estimated Cost: $0 (Parts) vs $85 (New Machine)

Frequently Asked Questions

Is Error 006 serious?
Error 006 is a therapy alert, not a hardware failure. It means your device detected a condition it could not auto-correct during therapy. The most common cause is a worn mask cushion or loose headgear, both of which are inexpensive user-replaceable items. Most 006 alerts resolve with mask maintenance and do not require DME involvement.
How often should I replace my CPAP mask cushion to prevent 006 errors?
ResMed recommends replacing silicone cushions every 1-3 months with nightly use. Memory foam cushions (used in some AirFit models) should be replaced monthly. Headgear straps should be replaced every 6 months. Most insurance plans cover replacement mask parts - check with your DME provider about your resupply schedule.
Can mouth breathing cause Error 006?
Yes. If you use a nasal mask (like the AirFit P10 or N20) but breathe through your mouth during sleep, air escapes out of your open mouth rather than through the circuit. This creates a large leak that the device detects as an uncontrolled condition and may trigger 006. Solutions include switching to a full-face mask (covers nose and mouth) or adding a chin strap to keep your mouth closed during therapy.

Related Resmed Cpap Error Codes

Code: HUBResMed CPAP Error Codes: Complete AirSense 10 and 11 Fault GuideCode: 21ResMed CPAP Error 21: High Leak Detected on AirSense 10Code: 6ResMed CPAP Error 6: Mask Leak Error on AirSense 10Code: HIGH-LEAKResMed CPAP High Leak Detected: Fix Large Leak on AirSense 10

Models Known to Experience 006 Errors

This repair applies to most Resmed cpaps with this error code. Common model numbers include:

AirSense 10 AutoSet, AirSense 10 CPAP, AirSense 10 Elite, AirSense 10 For Her

Last verified for technical accuracy on March 15, 2026