Haier HSU-09HSA03/R2(DB) E9: High work-intenseprotection, Haier air conditioner, Yes Yes Yes

Haier air conditioner Edition: 20070116

E9: High work-intense protection

Electrify the machine again and turn it on with the remote controller, then check whether the wind temperature is below 65 and the malfunction is reported after the machine has run for some time?

No

Check whether the indoor unit blows poorly due to blocked filters or poor condition of the fan

No

Use some tools to measure the pressure of system

- 50 -

Yes

Yes

Yes

Check room temperature sensor. Methods is like E1

1)Clean the filters

2)Reinstall the fan.

The system is over charged with gas