Haier air conditioner | Edition: 20070116 |
F21: | CN10 |
F25: Exhaust temperature sensor failure | CN11 |
F6: Ambient temperature sensor failure | CN9 |
Firstly check whether Terminal CN10 (or CN11, or CN9) on the out door 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 Outdoor PCB is broken
Replace with new outdoor PCB
No
Yes
Pull out the terminals on the outdoor mainboard and reinsert them.
Sensor is broken
Replace with a new sensor
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