Technibel GR120R Technical Data & Service Manual page 34

D. 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 primari
and secondary winding of
transformer
•
Indoor PCB Ass'y is detective.
E. Check TIMER on the remote control unit
•
Timer i turned On.Check to see
if is displayed on remote control
8-6-3 Only outdoor unit does not run
A Check setting temperature
COOL
Is room temperature too low?
Try to lower setting temperature by
temperature setting button
•
Try to use another remote
control unit
•
Remote control unit is defective
OK
Light is OFF
YES
NO
Outdoor unit still does
not run
OK
•
Measure resistance of indoor
and outdoor fan motor winding
•
Measure resistance of
compressor motor winding
•
Measure coil resistance of power
relay in outdoor unit.
•
Replace the fuse
•
Cancel the timer mode push the
buttom CLEAR
HEAT
Is room temperature too high?
Try to raise setting temperature by
temperature setting button
•
Try to use another remote
control unit
•
Remote control unit is defective
31
OK
OK
NO
Outdoor unit still does
not run
OK