Thermann TH160GLG - Page 25

25
ERROR CODE LIST
Error
Code
Error Contents Corrective Action
H9
HP ambient (outdoor) temperature
thermistor error
- Check the thermistor connectors on
the main PCB or control PCB in the heat
pump unit for any disconnect, fall-o, wire
breakage or short circuit.
- Measure resistance of the thermistor
indicated by the error code.
HC
HP water outlet (outgoing) temperature
thermistor error
J3
HP discharge temperature thermistor
error
J5 HP suction temperature thermistor error
J6 HP defrost temperature thermistor error
J8
HP water inlet (return) temperature
thermistor error
H7 Tank temperature thermistor error
- Check the thermistor cable on the
terminal block in the heat pump unit for
any disconnect, fall-o, wire breakage or
short circuit.
- Measure resistance of the thermistor
indicated by the error code.
E6 Compressor booting error
- Check the compressor connector.
- Replace the main PCB or heat pump.
H6 Compressor revolution error
-Check the supply voltage.
-Measure resistance of each thermistor.
-Measure resistance of coil of expansion
valve to check open or short circuit.
-Replace the PCB or heat pump.