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2.11 EH: Refrigerant radiator temperature sensor error (For all models)
2.11.1 Digital display output
EH
2.11.2 Description
Refrigerant radiator temperature TL sensor error.
•
•
The system stops running.
•
Error code is displayed on outdoor unit PCB.
2.11.3 Trigger / recover condition
•
Trigger condition: TL temperature sensor is open circuited (or connecter loose) or short circuited.
•
Recover condition: The main control board can receive a normal feedback signal of TL sensor.
•
Reset method: Resume automatically.
2.11.4 Possible causes
•
TL temperature sensor damaged.
•
TL temperature sensor connect to the main control board is loose.
•
Main PCB damaged.
2.11.5 Procedure
Temperature sensor connection on main
Temperature sensor has short-circuited
Replace outdoor main PCB
EH
PCB is loose
No
or failed
No
Yes
Ensure the sensor is connected properly
Yes
Replace the sensor
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