Vivax ACP-09CH25ZNM Service Manual page 18

FAULT DIAGNOSIS BY SYMPTOM
Switching on the air conditioner
The current leakage switch
jumps to turn off
The fuse is blown
or air limit switch
jumps to turn off
Without any
response
Junction wire looses and collides with the outer
cover.
Degraded capability of wire insulation.
Insulation capability of
some components has
lowered.
Water comes into the plug or electric components.
Is the voltage
of power supply lower
than 15% of rated voltage
(220V)?
No Short circuit
somewhere.
Fuse capacity
is adequate or not?
Check whether
the receptacle has
power or not.
Power supply error
16
Check the resistance
of every component
by multimeter
Yes
The voltage is low,
please add manostat.
Short circuit in the
electric wire or
connection wire.
Partially short circuit in
some components.
Yes
Check as the above
-mentioned method.
No
Replace with adequate
fuse.
Strong circuit breaks
the circulation.
The transformer faults.
The main control board
faults.