Haier ESA3087 ユーザーズマニュアル

Haier air conditioner

 

                                             

Edition: 

1.0-061214

- 16 - 

2. Keystroke circuit error diagnose:   

When power on for the first time, the PCB will check the keystroke circuit, if the 

sampling value is different with the theory value, the LED will show E1, which means 
failed keystroke circuit. The keyboard is locked and so invalid, but the remote control is 
working normally. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
Check whether the keystroke can’t 
get up with pressure. 

 
PCB is broken, replace a new PCB.

 
Repair the keystrokes on electrical 
box to keep them away from the 
keystrokes on PCB. 

NO 

YES