Haier AE142FCAMA [117/139] Commercial air conditione

Haier AU52NFIAKA [117/139] Commercial air conditione
Are connectors of sensor properly
connected?
Reconnect
yes
no
Are resistance and temperature
characteristics of sensor
acceptable?
Replace sensor
Check PCB and replace
Is CPU chip installed firmly?
Is fault corrected after
JP301 is reset?
yes
yes
yes
no
no
no
Is it normal after replacing chip?
If chip is broken?
Replace chip
Normal
yes
3.EEPROM failure
no
Reinstall in right direction
2.Sensor failure
no
Check PCB and replace
Commercial Air Conditioner
Model: AU28/342FHAIA,
AU522FIAKA, AU52,60NFIAKA
-113-

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