Mission On-off DM16-01.01.21en
48 Service manual
10.2.4 Open circuit or short circuit of temperature sensor diagnosis and solution(E5)
Error Code
E5/E6/ E7
Malfunction decision
conditions
If the sampling voltage is lower than 0.06V or higher than 4.94V,
the LED will display the failure.
Supposed causes ● Wiring mistake
● Sensor faulty
Trouble shooting:
Check the connection
between temperature
sensor and PCB.
Correct the connectionNo
Yes
Replace indoor or outdoor
main PCB
Measure the resistance
value of the sensor
Repalce the sensorNo
Yes
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