Resmed CPAP Error 018 Error Code

Updated 2026-08-29 · review status: manual-verified Last verified: 2026-08-29

Quick answer

This is a calibration data error. This is caused by the device being out of calibration. If calibration doesn't correct this problem, then the main PC board will need to be replaced

Severity: high · DIY difficulty: intermediate

Safety

TBD - must be written per-code before publish

What Error 018 means

This is a calibration data error. This is caused by the device being out of calibration. If calibration doesn't correct this problem, then the main PC board will need to be replaced

Code meaning varies by series

  • AirSense 10 - Altra Service Professionals field reference (authorized ResMed service center): This is a calibration data error. This is caused by the device being out of calibration. If calibration doesn't correct this problem, then the main PC board will need to be replaced
  • AirSense 10 - ResMed official user guide: System fault, Error 0XX: an unrecoverable error has occurred on the device. Contact your care provider; do not open the device.

Causes, ranked

  1. Causes not yet documented — verify against the service manual.

Parts & supplies for Resmed CPAP: filters, control boards, sensors, and common replacement parts.

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Sources

  • Altra Service Professionals (ResMed authorized service center) - ResMed AirSense 10 problems and numbered error-code field reference (Error 001-020) — verified 2026-08-29
  • ResMed AirSense 10 device with humidifier - User Guide (Americas, official): Error 004 = hot environment/blocked filter/water in tubing - cool, replace filter, power-cycle; all other Error 0XX = unrecoverable device fault, contact care provider, do not open — verified 2026-08-29