37
Troubleshooting and repair:
5.4.17P4 High discharge temperature protection
Description: discharge temperature is higher than 115℃.
Possible reason:
Lack of refrigerant
High ambient temperature or heat exchanging in condenser side is bad
There is air or N2 or water in refrigerant system
Block in low pressure side
Troubleshooting and repair:
a) Check the refrigerant charging record and check if there is any leakage point.
b) Whether it is too dirty in outdoor coil? Improve the ventilation condition.
c) Check whether the fan motor can work normally.
5.4.18P5 High condenser temperature protection
Description: in cooling mode or dry mode, the T3 temperature is higher than setting value.
Possible reason:
Bad ventilation
Faulty temperature sensor
Faulty PCB
Troubleshooting and repair:
a) Check the heat exchange of outdoor unit condenser is good or not.
b) Check the temperature sensor resistance.
5.4.19P6 IPM module fault
Description: Below table shows detailed error code about P6.
To Next Page
Loading...
