Haier 1U50JECFRA-3 Service Manual page 38

Outdoor unit dc inverter

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10.3.4 Outdoor DC fan motor fault

Outdoor display

Method of

DC fan motor is detected by checking the fan running condition and so on

Malfunction

Detection

Malfunction

when the data of EEPROM is error or the EEPROM is damaged

Decision

Conditions

Supposed

Causes

DC fan motor protection dues to faulty PCB

Troubleshooting

* Caution Be sure to turn off power switch before connect or disconnect connector,

may be occurred.

LED1 flash 9 times

DC fan motor protection dues to the DC fan motor faulty

Service diagnosis

or parts damage

Domestic air conditioner

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