Fault Codes - Calorex VPT Series Owners & Installation Manual

5.3 FAULT CODES

When e heat pump displays any of ese fault
codes please contact your installer for advice.
Display
Er 05 High pressure alarm
Er 06 Low pressure alarm
Er 09 Controller communication failure
Er 10 Inverter module communication error
Er 12 High exhaust gas temperature alarm
Er 15 Water inlet temperature sensor failure
Er 16 Evaporator coil temperature sensor failure
Er 18 Exhaust gas temperature sensor failure
Er 19 DC fan motor error
Er 20 Inverter module abnormal error protection
Er 23 Low outlet water temperature protection under cooling mode
Er 29 Compressor suction gas temperature alarm
Er 32 Hight outlet water temperature protection under heat mode
Er 35 Compressor high current protection
Er 42 Condenser coil temperature sensor failure
1005759 ISSUE 3
Description of fault code
25