⚠
warning Aprilaire
Error Code Service light flashing red
Indicates canister near end of life due to mineral build-up, requires replacement soon.
? What Causes This
Buildup of minerals on electrodes over prolonged operation reducing efficiency.
✓ How to Fix It
- Turn off humidifier before replacing the canister.
- Follow steps in Section 'To Replace The Canister' starting with powering down and draining unit. Then replace canister ensuring correct O-rings are used to prevent leaks.
Source: page 27 of the official manual
From the manual
This error code appears in:
Aprilaire 800