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VRF 50/60Hz
2.12 EP: Outdoor ambient temperature is lower than -5ºC in cooling operation (For all models)
2.12.1 Digital display output
EP
2.12.2 Description
•
Outdoor ambient temperature is lower than -5ºC in cooling opera on.
•
The system stops running.
•
Error code is displayed on outdoor unit PCB.
2.12.3 Trigger / recover condition
•
Trigger condi on: Outdoor ambient temperature is lower than -5ºC in cooling opera on.
•
Recover condi on: Outdoor ambient temperature is over -5ºC.
•
Reset method: Resume automa cally.
2.12.4 Possible causes
•
TL temperature sensor damaged.
•
TL temperature sensor connect to the main control board is loose.
•
Main PCB damaged.
2.12.5 Procedure
T4 sensor detected temperature is lower
T4 temperature sensor has short-
Replace outdoor main control board
62
EP
than -5ºC
No
circuited or failed
No
Yes
Temperature over opera on range
Yes
Replace the T4 sensor
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