Troubleshooting by Error Codes SiUS281811EA
226 Part 6 Service Diagnosis
CHECK 16 Refer to page 306.
YES
NO
Turn on the power.
CHECK 16
Remove the signal connector
from the fan motor and check
the resistance.
The resistance
among U, V, and W are unbalanced
or short circuited.
YES
NO
YES
NO
Replace the fan PCB (A2P).
The HAP
lamp of the indoor
unit PCB (A1P) blinks and the
HAP lamp of the fan PCB
(A2P) is off.
Between V
CC
and GND
terminals, and between GND
and H
W
, H
V
, or H
U
terminals are
short-circuited.
Replace the indoor fan
motor.
Replace the indoor fan
motor.
Replace the indoor fan
motor.
A
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