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Check of indoor fan motor
A
Inodoor fan does not operate.
Turn OFF power supply.
Check connector (Fan motor) visually.
Repair indoor fan motor.
Disconnect lead wires from connector (Fan motor) on indoor electronic control P.C. board.
Measure resistance between lead wires No.1 and No.3 and then No.2 and No.3 (09NW)
Are lead wires connected?
Reconnect lead wires
Is soldered point nomal?
Replace indoor electronic control
P.C. board.
Resolder it.
Is resistance 0 (short circuit) or ∞ (open circuit)?
Yes ( 0 or ∞ )
No
(others)
Yes
No
Yes
No
{
}
No.1 and No.4 and then No.3 and No.4 (12/15/17NN)
12/15/17NN
09NW
Insert screwdriver into air outlet to
rotate indoor fan motor slowly for 1
revolution or over, and measure
voltage between CN 121
11
~
22
.
Does voltage repeat 0V
DC and more than 5V?
Yes
No
OB192--2.qxp 23/6/97 11:50 PM Page 34