SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 247
CHECK 16 Refer to page 356.
Replace the fan PCB.
YES
Replace the fan motor 2.
NO
NO
Replace the fan PCB.
YES
YES
Replace the relevant fan motor.
NO
NO
Replace the relevant fan motor.
YES
NO
Replace the relevant fan motor.
YES
Check for the connector
(power supply cable) of
the fan motor.
U
V
W
(Red) (White) (Black)
○ ○ ○
Turn ON the power supply to check the following LED lamps.
1.HAP lamp on the inverter PCB (A3P)
2.HAP lamp on the fan PCB (A4P)
A
The
HAP lamp on
the A3P blinks, but the
lamp on the A4P
does not.
Resistance
between U, V,
W phases of the
fan motor power
supply cable has gone
out of balance or short
circuit has occurred
between U, V, W
phases.
Resistance
between the fan
motor power supply
cable terminal and the
motor frame (metallic
part) is less than
1 MΩ.
The
fan can be rotated by
hand after disconnecting the
connector from the fan
motor.
There
is no conduction
across the fuse (F101U)
on the fan PCB.
CHECK 16
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