Sanyo SAP-K181A Technical & Service Manual page 35

E. Check fuse on the indoor PCB Ass'y.
• Check fuse on indoor PCB Ass'y
for continuity.
• Check operation lamp to see
if light is ON.
• Measure resistance of primary and
secondary winding of transformer.
Indoor PCB Ass'y or switch Ass'y is
defective.
F. Check TIMER on the remote control unit.
• Timer is turned ON. Check to see
if is displayed on remote
ON
control.
If fuse has been blown,
(F)
OK
Light is OFF
(TR)
OK
YES
• Measure resistance of indoor fan
motor winding.
• Measure resistance of flap motor
winding.
• Measure coil resistance of power
relay.
Replace the fuse.
Cancel the timer mode.
31
(FM)
OK
(FLP)
OK
(PR )
OK