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 or is displayed on
remote control
YES
Cancel the timer mode.
ON
OK
OK
• Check fuse on indoor PCB Ass'y
for continuity. (F)
• 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 is defective.
OK
OK
• Measure resistance of indoo
fan motor winding.
(FMI)
• Measure resistance of louver
motor winding. (LM)
OK
• Measure coil resistance of power
relay in outdoor unit.
(PR)
• Replace the fuse.
If fuse has been blown,
• Measure resistance of primary and
secondary winding.
(TR)
22
