36
TROUBLESHOOTING CONTINUED
(3) Capacity charging malfunction
Main checking points:
●
● Is the mainboard broken;
Is the wiring of the reactor connected correctly or is the reactor broken;
Flow chart:
Energize the unit and wait
for 1min
Check the capacitor voltage
with a voltmeter on the DC
scale
Is the voltage above 100V DC
yes
yes
yes
no
no
no
The detection circuit of
the outdoor mainboard
has malfunction
Replace the out-
door mainboard
Check if the reactor wiring is loose
or if the reactor is broke
Replace the reactor or
reconnect the loose wire
Malfunction is eliminated
Replace the outdoor
mainboard
End
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