214733 414 Revision A
Problem Solution
Section
Loose or broken compressor drive belt
Replace drive belt and/or tighten to
specifications.
Tensioning Air Conditioner (A/C)
Compressor Belts, page 362 and
Replacing Air Conditioner (A/C)
Compressor Belts, page 363
Dirty filters Clean fresh air and recirculation filters.
5.9.1 Servicing Return Air Filter, page
304
Broken or disconnected electrical wire
Check all terminals for loose
connections; check wiring for
hidden breaks.
—
Broken or disconnected ground wire
Check ground wire to see if loose,
broken, or disconnected.
—
Expansion valve stuck in open or
closed position
Contact Dealer.
—
Broken refrigerant line Contact Dealer.
—
Leak in system Contact Dealer.
—
Compressor shaft seal leaking
Contact Dealer.
—
Clogged screen in receiver-drier;
plugged hose or coil
Contact Dealer.
—
Symptom: Air conditioning is not producing sufficient cooling (meaning that air temperature in the windrower cab,
measured at the louvered vent, can be maintained at 14°C [57°F] below ambient air temperature)
Compressor clutch slipping
Remove clutch assembly for service or
replacement.
Contact Dealer.
Thermostat defective or improperly
adjusted
Replace thermostat. Contact Dealer.
Clogged air filters
Remove air filters, and clean or
replace as necessary.
5.9.1 Servicing Return Air Filter, page
304
Heater circuit is open
Lower temperature control in cab, and
close valve on engine).
3.10.3 Climate Controls, page 60 and
3.10.1 Heater Shut-Off Valve, page 59
Insufficient air circulation over
condenser coil; fins clogged with dirt
or insects
Clean condenser.
Cleaning Left Cooling Module, page
306
Evaporator fins clogged
Clean evaporator fins (under cab
floor).
Cleaning Air Conditioning (A/C)
Evaporator Core, page 355
Refrigerant low Contact Dealer.
—
Clogged expansion valve Contact Dealer.
—
Clogged receiver-drier Contact Dealer.
—
Excessive moisture in system
Contact Dealer.
—
Air in system
Contact Dealer.
—
Blower motor sluggish in operation Contact Dealer.
—
TROUBLESHOOTING
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