Fan Motor Works Normally But The Compressor Does Not Operate - Technibel MTV72C5 Technical Data & Service Manual

7-6 Fan motor works normally but the compressor does not operate

Check hardness
and continuity. Is the
relay compressor
coil power supplied ?
Replace the relay
(PR)
Replace klixon (ORL)
Replace the
capacitor (C)
Replace the
compressor
NO Check if relay
contects are closed
YES
YES Check compressor
klixon contacts (ORL)
Are they open ?
NO
NO Check the capaci -
tor capacity (C)
YES
NO Check the com -
pressor winding
continuity
YES
YES Is the thermostat in
the right position ?
Is room tempera -
ture over 19 °C ?
Replace the
thermostat
YES Temperature of
compressor is
abnormally high
Refrigerant gas
shortage
gas likage
Vacuum and
charge
refrigerant gas
12
NO
YES
NO
YES
NO
YES
YES
Check
YES
Adjust thermostat
position
The unit cannot
operate below
19 °C
Compressor rotor
locked
Replace
compressor