Technibel MPAFIA0R5IAA - Page 24

7-3 SYSTEM DOES NOT RUN.
Check sensor
connection and
measure its
resistance
3- IN INDOOR UNIT THERE IS ONE LED BLINKING AT LEAST
For the meanings of the faults, see paragraph 5.17
TEMPERATURE
SENSOR DAMAGED
Replace the
sensor
COMMUNICATION
ERROR
Is the
communication
fuse blown?
Replace fuse
100mA
The fuse may be
not fitted rightly
in the fuseholder
Check for right
connection of
communication
wires
Check outdoor
unit. Is there any
led on?
See section 6.5
Turn off power
supply and after
3 minutes turn
on again
Outdoor unit
PCB assy is
defective
NO
YES
YES
NO
See section 7.6
FAULT ON THE
OUTDOOR UNIT
Replace outddor
unit PCB
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