C. Check " OPERATION selector " switch in the indoor unit.
D. Check transformer in indoor unit.
E. Check fuse on the indoor PCB Ass'y.
F. Check TIMER on the remote control unit.
• Timer is turned ON. Check to see
if is displayed on remote
control.
YES
Cancel the timer mode.
ON
OK
OK
• Check fuse on indoor PCB Ass'y
for continuity. (F01)
• Check operation lamp to see
if light is ON.
Light is OFF
• Measure resistance of primary and
secondary winding of transformer.
(TR)
Indoor PCB Ass'y or switch Ass'y is
defective.
OK
OK
• Measure resistance of indoor and/or
fan motor winding.
(FM)
• Measure resistance of compressor
motor winding. (CM)
OK
• Measure coil resistance of power
relay.
(PR)
Replace the fuse.
If fuse has been blown,
• Measure resistance of primary and
secondary winding.
(TR)
YES
NO
• OPERATION selector switch is set
in ON position.
Set OPERATION selector switch
to ON.
Indoor PCB Ass'y is defective.
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