Fault On Outdoor Unit - Technibel MPAFIA0R5IAA Service Manual

7-6

FAULT ON OUTDOOR UNIT

FAULT
TEMPERATURE
ON THE
SENSOR
INDOOR
DAMAGED
UNIT
Check sensor
See section 7.3
connection
and measure
its resistance
Replace the
sensor
Replace fuse
100mA
IN OUTDOOR UNIT THERE IS ONE LED BLINKING AT LEAST
For the meanings of the faults, see paragraph 5.17
COMMUNICATION
ERROR
Is the
communication
fuse blown?
YES
NO
The fuse may be
not fitted rightly
in the fuseholder
Check for right
connection of
communication
wires
Turn off power
supply and after
3 minutes turn
on again
COMPRESSOR/FAN
OVERCURRENT/
OVERTEMPERATURE
Measure the
resistance of
compressor/fan
motor windings. Is
it defective?
YES
Replace the Replace
compressor/ outdoor unit
fan
26
PFC FAULT
Measure the
resistance of
inductor. Is it
defective?
NO
YES
Replace the
inductor
PCB
NO
Replace
outdoor unit
PCB