Haier ESA418J Service Manual page 20

E1: Bottom malfunctions
Check whether the keystroke
can't work due to extrusion.
Repair the plastic keystrokes of the
electric box to keep them away from
the keystroke of mainboard.
ESA418J
Yes
19
No
Replace the indoor
PCB with new one.
Domestic Air Conditioner
Abnormity Diagnose