Thermistor Cooling
mode
Heating
mode
Indoor
unit
Room
temperature
Fixed at 25°C
Room
temperature
Shorted Open
Thermistor Cooling
mode
Heating
mode
Outdoor
unit
Discharge
temperature
Open Shorted
Heat
exchanger
outlet
temperature
Shorted Open
- Refer to the circuit diagram for the connection locations for each thermistor.
- If there is an abnormality in the room temperature thermistor, the temperature will be fixed at 25°C
regardless of the remote control unit display.
NOTE:
- Any abnormalities detected by the temperature thermistors are ignored during emergency
operation, so that long-term operation in this mode should be avoided.
- After emergency mode operation has been completed and normal operation is to be resumed, turn
the power supplies for the indoor and outdoor units off and return the DIP switch to the NORMAL
position.
- Self-diagnosis LEDS 4 to 6 will flash during emergency operation.
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