Midea CSU 12HCAA, Руководство по установке и обслуживанию

Страница: 107 / 107

第
59
页 共
59
页
Indoor unit and outdoor unit don
’
t operate
Indoor and outdoor unit
don
’
t operate
Press emergency key, does
the air conditioner
running?
Replace fuse of
indoor PCB.
YES
YES
YES
NO
NO
NO
NO
Make the power
supply ok.
Replace remote
control.
YES
NO
Replace remote
receiver or display
panel.
NO
YES
YES
Replace transformer.
Does the transformer has
output?
Does the fuse of indoor
PCB burn out?
Change a good remote,
does the air conditioner
running?
Is the power supply no
problem?
Does the 12V and 5V of
indoor PCB have?
Replace PCB.
normal
Does the electric switch
cut off?
Does the electric switch
cut off after a few
nimutes?
Is the wires of indoor
unit and outdoor unit no
problem?
YES
Reconnect the wires.
NO
Is the insulation of
indoor unit and outdoor
unit no problem?
YES
Find the reason and
replace the failure
componet.
NO
Is the resistance of each
main component no
problem?
Rreplace the failure
componet.
NO
YES
YES
YES