Fisher Air Conditioner Error Codes

Room Air Conditioner- Split Wall-Mounted Type

E0 Indoor unit EEPROM parameter error
E1 Indoor / outdoor units communication error
E3 Indoor fan speed has been out of control
E4 Indoor room temperature sensor T1 open circuit or short circuit
E5 Evaporator coil temperature sensor T2 open circuit or short circuit
EC Refrigerant leakage detection
F0 Overload current protection
F1 Outdoor ambient temperature sensor T4 open circuit or short circuit
F2 Condenser coil temperature sensor T3 open circuit or short circuit
F3 Compressor discharge temperature sensor T5 open circuit or short circuit
F4 Outdoor unit EEPROM parameter error
F5 Outdoor fan speed has been out of control
P0 IPM malfunction or IGBT over-strong current protection
P1 Over voltage or over low voltage protection
P2 High temperature protection of IPM module or compressor top
P4 Inverter compressor drive error

* Fault Symptom: The display board shows a garbled code or a code that is not an error code found in the service manual nor a temperature reading.

DC Inverter Floor Ceiling Type Air Conditioner

DC Inverter Floor Ceiling Type Air Conditioner
E0 Water Pump Malfunction
E1 High pressure protection of compressor
E3 Low pressure protection of compressor
E4 High discharge temperature protection of compressor
E5 Compressor overload or drive error
E6 Communication malfunction
E9 Water overflow protection
F0 Indoor unit ambient sensor malfunction at air return opening
F1 Evaporator sensor malfunction
F2 Condenser sensor malfunction
F3 Outdoor unit ambient temperature sensor malfunction
F4 Discharge temperature sensor malfunction
F5 Ambient sensor malfunction on Displayer (or LED board)

If there is malfunction during running of the system, LCD will display error code at temperature–displayed location. Once there is more than one malfunction, error codes will be displayed circularly. If there are multiple circuit systems, the system number of failed system will be displayed before the colon (not for single system). If malfunction occurs, turn off the unit and contact nearest dealer for help.

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