- 15 -
1(Heating/Cooling)/
2(Single heating)
Electronic expansion valve action cycle
Degree of super heat setting
expansion valve forced opening gas
exhaust temperature
Electronic expansion valve opening
setting (under defrosting)
Electronic expansion valve minx.
Opening setting
Electronic expansion valve manual
setting
Electronic expansion valve manual
setting option
expansion valve forced opening gas
exhaust temperature
Evaporator coil temperature (under
heating mode)
8. Troubleshooting
8.1 Error code display on LED wire controller
Heating condenser sensor failure
Check or change the sensor
Exhaust temperature sensor failure
Check or change the sensor
Inlet water temperature sensor failure
Check or change the sensor
Outlet water temperature sensor failure
Check or change the sensor
Ambient temperature sensor failure
Check or change the sensor
Gas return sensor failure
Check or change the sensor
1.Check if there is any gas leakage ,re-fill the
refrigerant
2.Replace the filter or capillary