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error Aprilaire
Error Code Solid red Fill light
Fill valve has been energized for over 40 minutes without successful water detection or low spot in steam hose.
? What Causes This
High static pressure, obstruction, or improper installation of the steam hose.
✓ How to Fix It
- Verify high water probe connection is tight and secure on canister top.
- Ensure steam hose has appropriate slope from dispersion tube to humidifier without any dips.
- Check all tee connections for proper functioning, ensuring no backpressure issues in system.
Source: page 27 of the official manual
From the manual
This error code appears in:
Aprilaire 800