Fault

HVAC-HEAT-NOWORK

Electric heating tube does not work.

1 Devices that report this code
FLS-ES232LC-SEnergy storage system↗ view on device
HVAC-HEAT-NOWORKElectric heating tube does not work.Fault
Cause

Water temperature set too low (no heating required), loose circuit connection, or electric heating tube burnout.

Recommended fix

Check outlet temperature and heating set point; tighten circuit connector; replace burnt-out heating tube.

Source:FLS-ES232LC-S.pdf

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.