Thermann TH160GLG - Page 24

Thermann Installer's Manual
Thermann X Split Heat Pump
24
ERROR CODE LIST (CONT.)
Error
Code
Error Contents Corrective Action
U0 Refrigerant leakage error
- Measure resistance of each thermistors.
- Measure resistance of coil of expansion
valve to check open or short circuit.
- Replace the main PCB or heat pump.
E1 Main PCB error - Replace the main PCB.
E2, L7 Control PCB error - Replace the control PCB.
F5
Communication error between main
PCB to control PCB
- Check the communication connector on
the main PCB and control PCB.
- Replace the main PCB or control PCB.
E8 High inlet current error
- Check the installation location.
- Check the supply voltage.
- Replace the main PCB or heat pump.
H8 Current error - Replace the main PCB.
L4 High temperature of module error
- Check the installation location.
- Remove foreign objects from the
evaporator coil (e.g. fallen leaves, grass,
snow)
- Check the fan motor is not flowing by
dirt.
- Replace the main PCB or fan motor.
L5 High outlet current error
- Measure resistance of the discharged
thermistor.
- Measure resistance of coil of expansion
valve to check open or short circuit.
- Replace the main PCB or heat pump.
P4 Module temperature thermistor error - Replace the main PCB.
U2 High voltage error - Check the supply voltage.