Troubleshooting For Main Malfunction - Quietside QS09-VP115 Service Manual

9.3 Troubleshooting for Main Malfunction

(1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel)
Main Check Points:
●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.
●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged?
Fault diagnosis process:
Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
N
Measure the AC voltage between
terminal L and N on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
Y
Shut down the power and wait 20 minutes;
or use DC voltmeter to measure the voltage
on the two ends of capacitor , until the
voltage is lower than 20V
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor L is normal?
Y
Replace the control
panel AP1
End
42
Fault with the voltage
testing circuit on
Y
control panel AP1
Shut down the power
and repair the power
N
supply to restore the
range
210VAC~250VAC
Connect the reactor
Laccording to Elec-
N
trical Wiring Diagr-
am correctly
Replace the control
panel AP1
power on and
restart the unit
N
Re-energize and If the fault is
turn on the unit eliminated?
N
Service Manual
If the fault is
Y
eliminated?
Y
Installation and Maintenance