ERR164.00
Indoor EEV fault / EEV CLSE ERR
This code typically points to
- EEV migrated to close position but superheat is not at desired setpoint
- Valve not responding
- Possible stuck valve
- ET/GT sensor calibration issue
Next checks to confirm
- Check valve response
- Verify ET/GT sensor calibration
Escalation
User Display
Reset behavior
Clears when EEV response fault corrected.
Service Soon
Schedule repair