Argo AMG21CDT Technical Data & Service Manual - Page 15
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7-7 Fan motor works normally but the compressor does not operate
Check hardness
and continuity. Is the
relay compressor
coil (PR white cable)
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 15 °C ?
Check the sensor
continuity (TH2)
through 9-10
electronic control
(CE) terminal
Check electronic
control (CE)
15
NO
YES
NO
YES
NO
blocks
YES
Adjust thermostat
position
The unit cannot
operate below
15 °C
Replace the
sensor (TH2)