Midea MSMBB-12CRDN1-MP0W Service Manual page 40

9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5)
Error Code
Malfunction decision
conditions
Supposed causes
Trouble shooting:
E4/E5/F1/F2/F3
If the sampling voltage is lower than 0.06V or higher than 4.94V,
the LED will display the failure.
Wiring mistake
●
Sensor faulty
●
PCB faulty
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