Troubleshooting by Indication on the Remote Controller SiUS39-602
148 Troubleshooting
Troubleshooting
Refer check 8, 9 and 12 to P.212
~
213.
Check No. 12
Check on pulse input of
position signal of fan inverter
PCB
YES
Check No. 8
Check on connector of fan
motor (Power supply cable)
YES
Is the LED
(HAP) on fan inverter
PCB blinking?
NO
Check No. 9
Check on connector of fan
motor (Signal wire)
YES
Are the
resistance values
between phases of
U, V, W balanced?
Is there any short
circuiting between
phases of
U, V, W?
NO
Is the
resistance value
between Vcc and UVW,
and GND and UVW
balanced?
NO
Replace the fan inverter
PCB.
Replace the fan motor of
outdoor unit.
Replace the fan motor of
outdoor unit.
Replace the fan inverter
PCB.
(V3077)
1A
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