Fault
1 Devices that report this codeHVAC-PUMP-FAIL
Circulating water pump does not start or operates improperly.
HVAC-PUMP-FAILCirculating water pump does not start or operates improperly.Fault
Cause
Power off, loose circuit connection, damaged water pump, or air in cooling medium / no cooling medium.
Recommended fix
Check main power switch; tighten circuit connector; replace damaged water pump; evacuate air or replenish cooling medium.
Source:
FLS-ES232LC-S.pdfCompiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.