37
Maintenance
Service Manual
(6).Replace main board
Concentration
detector
No
Remove panel
Leakage
Leakage test for the
complete unit
Remove front
case
Remove the
shielding box of
electric box
The qualified parts
provided by
manufacturer
Release the
refrigerant
referigerant
Leakage test
Recharge
Pressure test
Yes
Replace main
board