(c) In case compressor will not operate.
(d) In case condenser fan motor will not operate:
In case indication on display is , refer to page 50.
(e) In case thermostat will not operate (will not become ON-OFF)
Refrigeration is defective ···· Refer to page 42, diagnosis of defects on refrigerant system.
– 54 –
Is battery
voltage measured at
GB line of magnet
clutch (engine side)
connector?
Magnet clutch
ground wire is
off.
YES
Is battery voltage
measured at magnet clutch
ground wire?
YES
NO
NO
• AR1 relay is defective.
• GB and LR lines between
magnet clutch and relay box
AR1 are broken or their
contact is defective.
BR line between
controller and relay
box AR
1 is broken or
contact of connector is
defective.
Controller is defective.
Magnet clutch is defective.
Is battery
voltage measured
at BR line of AR
1
coil?
Is under
0.5V measured
at O terminal of
controller?
NO
NO
YES
YES
Compressor will not operate.
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