Washer-dryer combo displays E20; unit may not respond to commands or may freeze mid-cycle.

Safety first: Unplug the unit before extended resets or panel removal.

• Perform a hard reset: Unplug the washer-dryer for at least 10 minutes. Press and hold the Start/Pause button for 10 seconds (if accessible) to discharge residual power, then reconnect and test.
• Run diagnostic mode: Many NewAir models support a self-test mode (refer to service manual). Enter diagnostics to clear stored errors and verify component operation.
• Avoid power interruptions: Ensure the unit is on a dedicated circuit and not subject to frequent outages or surges. Consider using a surge protector rated for appliances.
• Firmware update or PCB replacement: If E20 recurs, the main control board may require firmware reprogramming or replacement. This must be performed by an authorized service provider.