| Haier air conditioner | Edition: 20070116 |
E1: | Room temperature sensor failure | CN8 |
E2: |
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Firstly check whether Terminal CN8(CN6) on the indoor mainboard contact well or not?
Yes
Pull the sensor out of the mainboard
1)Measure the value of resistance between its two jumpers
2)Measure the temperature at the room temperature sensing head. Check the specifications of the sensor to decide whether the sensor is damaged or not?
No
The Indoor PCB is broken Replace with new indoor PCB
No
Yes
Pull out the terminals on the indoor mainboard and reinsert them.
Sensor is broken
Replace with new indoor PCB
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