Technical data

3 UNIT DOES NOT RUN.
Check power supply.
Is power being supplied
to wall receptacle?
NO
Circuit
breaker is
tripped
Power failure
YES
Reset the
breaker
Wait for
recovery or
contact
power
company
Check fuse on pcb. Is the
fuse blown?
There is a possibility
of short circuit
YES
The receiver
assy is
disconnected or
defective
NO
3.1 - THERE IS NO SIGNALING LED ON UNIT
PCB assy
is defective
Change EMI
filter (EF)
NO
YES
Check the following
electrical parts:
compressor
fan motors
inversion valve coil
capacitors
Check EMI filter.
Is it defective?
EMI filter check up
pin L-L’: lower than 0.5 ohm
pin L-1: lower than 0.3 ohm
pin N-N’: lower than 0.5 ohm
pin N-2: lower than 0.3 ohm
pin L-N: 2.2 Mohm
pin L’-N’: 2.2 Mohm
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