When friedrichair conditioner status is abnormal, temperature indicator on indoor unit will blink to display corresponding error code. Please refer to below list for identification of error code.
During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops
During cooling an drying operation, compressor and outdoor fan stop while indoor fan operates
During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop.
Supply voltage was unstable during operation. Please restart, if restart doesn’t work, contact dealer or qualified aircon technician.
During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops. The operation indicator will off 3 seconds and blink 6 times.
The operation indicator off 3 seconds and blink 8 times. This is the sign of high temperature resistant protection.
The operation indicator will off 3 seconds and blink 17 times. Circuit PG motor ( indoor fan ) has circuit malfunction by zero cross detection. Operation of remote controller or control panel is available but the unit won’t act.
The heating indicator will off 3 seconds and blink once. Defrosting will occur in heating mode. The compressor will operate while indoor fan will stop operation. This is normal.
System noticed abnormal temperature range. Please restart, if restart doesn’t work, contact dealer or qualified service.
The operation indicator will off 3 seconds and blink 11 times. The complete unit will stop operation. PG motor ( indoor fan motor ) does not operate.
Friedrich ac error code h6 troubleshooting:
The operation indicator will off 3 seconds and blink 15 times. This is the sign of malfunction protection of jumper cap. The complete unit will stop operation.
Friedrich ac error code c5 troubleshooting:
The cool indicator will off 3 seconds and blink once. This is the sign of indoor ambient temperature sensor is open/short circuited. During cooling and drying operation, indoor unit operates while other loads will stop. During heating operation, the complete unit will stop operation.
The cool indicator will off 3 seconds and blink twice. This is the sign of indoor evaporator temperature sensor is open/short circuited. During cooling and drying operation, indoor unit operates while other loads will stop. During heating operation, the complete unit will stop operation.
The cool indicator will off 3 seconds and blink 3 times. This is the sign of outdoor ambient temperature sensor is open/short circuited.
The cool indicator will off 3 seconds and blink 4 times. This is the sign of outdoor condenser temperature sensor is open/short circuited.
The cool indicator will off 3 seconds and blink 5 times. This is the sign of outdoor discharge temperature sensor is open/short circuited. During cooling and drying operation, compressor wil stop after operating for about 3 mins while indoor fan will operate. During heating operation, the complete unit will stop after operating for about 3 mins.
The cool indicator will off 3 seconds and blink 6 times. This is the sign of limit/decrease frequency due to overload. The aircon status now is all loads operate normally, while operation frequency for compressor is decreased.
The cool indicator will off 3 seconds and blink 8 times. This is the sign of decrease frequency due to overcurrent.
The cool indicator will off 3 seconds and blink 9 times. This is the sign of decrease frequency due to high air discharge.
The cool indicator will off 3 seconds and blink 11 times. This is the sign of voltage for DC bus-bar is too high.
The cool indicator will off 3 seconds and blink 13 times. This is the sign of malfunction of complete units current detection.
The cool indicator will off 3 seconds and blink 15 times. This is the sign of overcurrent protection of phase current for compressor.
The heating indicator will off 3 seconds and blink 3 times. This is the sign of overload protection for compressor.
The heating indicator will off 3 seconds and blink 6 times. This is the sign of PFC protection.
The heating indicator will off 3 seconds and blink 10 times. This is the sign of decrease frequency due to high temperature resistant during heating operation. All loads operate normally, while operation frequency for compressor is decreased.
The heating indicator will off 3 seconds and blink 11 times. This is the sign of failure start-up.
The heating indicator will off 3 seconds and blink 13 times. This is the sign of malfunction of phase current detection circuit for compressor.
Replace outdoor contorl panel AP1
The heating indicator will off 3 seconds and blink 15 times. This is the sign of EEPROM malfunction.
Replace outdoor contorl panel AP1
The heating indicator will off 3 seconds and blink 17 times. This is the sign the charging malfunction of capacitor.
The heating indicator will off 3 seconds and blink 18 times. This is the sign of malfunction of module temperature sensor circuit.
Replace outdoor contorl panel AP1
The heating indicator will off 3 seconds and blink 19 times. This is the sign of module high temperature protection.
After the complete unit is de-energized for 20 mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
The heating indicator will off 3 seconds and blink 20 times. This is the sign of malfunction of voltage dropping for DC bus-bar.
This is the sign of the four-way valve is abnormal. If this malfunction accors during heating operation, the complete unit will stop operation.
This is the sign of zero-crossing malfunction of outdoor unit.
Replace outdoor control panel AP1.
The heating indicator will off 3 seconds and blink 21 times. This is the sign of voltage of DC bus-bar is too low.
This is the sign of limit/decrease frequency due to high temperature of module.
Discharging after the complete unit is de-energized for 20 mins, then check whether the thermal greese on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace the control panel AP1.
This is the sign of limit/decrease frequency due to antifreezing.
Poor air-return in indoor unit or fan speed is too low.
Below we offer some malfunction diagnosis process in case you need it.
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