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Symptom
Problem
Solution
Section
Compressor clutch slipping
Remove clutch assembly for service
or replacement.
Thermostat defective or
improperly adjusted
Replace thermostat.
Contact Dealer
Clogged air
fi
lters
Remove air
fi
lters, and clean or
replace as necessary.
5.8.1 Servicing
Return Air Filter,
page 271
Heater circuit is open
Lower temperature control in cab,
and close valve on engine).
3.10.3 Climate
Controls, page 61
and
Insuf
fi
cient air circulation over
condenser coil;
fi
ns clogged
with dirt or insects
Clean condenser.
Cleaning Left
Cooling Module,
page 272
Evaporator
fi
ns clogged
Clean evaporator
fi
ns (under cab
fl
oor).
Cleaning Air
Conditioning (A/C)
Evaporator Core,
page 314
Refrigerant low
Clogged expansion valve
Clogged receiver-drier
Excessive moisture in system
Air in system
Air conditioning
not producing
suf
fi
cient cooling
(suf
fi
cient cooling
de
fi
ned as when
air temperature
in cab, measured
at louvered vent,
can be maintained
at 14°C [57°F]
below ambient air
temperature)
Blower motor sluggish in
operation
Contact Dealer.
Contact Dealer
Unit icing up due to thermostat
adjusted too low
Adjust thermostat.
Unit icing up due to excessive
moisture in system
Unit icing up due to incorrect
super-heat adjustment in the
expansion valve
Thermostat defective
Defective blower switch or
blower motor
Partially open, improper
ground or loose connection in
compressor clutch coil
Air conditioning
cools intermittently
Compressor clutch slipping
Contact Dealer.
Contact Dealer
214053
373
Revision A
Содержание M1240
Страница 29: ...SAFETY 1 11 Safety Sign Locations Figure 1 31 Safety Sign Locations 214053 17 Revision A ...
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Страница 352: ...MAINTENANCE AND SERVICING Figure 5 175 Main Fuse Panel Decal MD 207815 214053 340 Revision A ...
Страница 353: ...MAINTENANCE AND SERVICING Figure 5 176 Relay Module Fuse Panel Decal MD 207816 214053 341 Revision A ...
Страница 355: ...MAINTENANCE AND SERVICING Figure 5 178 Roof Headliner Fuse Decal MD 207819 214053 343 Revision A ...
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