V6 VRF 50Hz
2.5 E4: Temperature sensor (T3/T4) error
2.5.1
Digital display output
2.5.2
Description
Outdoor heat exchanger temperature sensor (T3) error or outdoor ambient temperature sensor (T4) error.
All units stop running.
Error code is only displayed on the unit with the error.
2.5.3
Trigger / recover condition
Trigger condition: The main control board cannot receive the feedback signal of temperature sensor T3 or T4.
Recover condition: The main control board can receive the feedback signal of temperature sensor T3 or T4.
Reset method: Resume automatically.
2.5.4
Possible causes
Temperature sensor not connected properly or has malfunctioned.
Damaged main PCB.
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