Haier HSU-09HSA03/R2(DB) 用户手册

Haier air conditioner

Edition: 20070116 

- 48-

F22: AC electricity protection

Repair the power supply

Yes

Electrify the machine again and turn

it on with the remote controller. If

malfunctions are reported before or 

upon the compressor being started 

up.

The compressor is started normally, 

but malfunctions are reported after it

has run for some time. Check the 

power supply. If the voltage is too 

low or too high

If the power supply is in OK,

judged through the pressure of 

the measuring system

The IPM is damaged

The system may have been 

over or under charged with 

gas .

Yes

Yes

No

No