TROUBLESHOOTING
* See your MacDon dealer
** Refer to Windrower Technical Manual
Form # 169304
166
Model Year - 2009
SYMPTOM
PROBLEM
SOLUTION
SECTION
Air Conditioning Not Cooling.
(Continued)
Compressor shaft seal leaking.
Contact MacDon dealer.
*
Clogged screen in receiver-drier;
plugged hose or coil.
Air Conditioning Not Producing
Sufficient Cooling.
(Sufficient Cooling Defined As
When Air Temperature In Cab,
Measured At Louvered Vent, Can
Be Maintained At 25°F (14°C)
Below Ambient Air Temperature.)
Compressor clutch slipping.
Remove clutch assembly for
service or replacement.
**
Clogged air filters.
Remove air filters and clean or
replace as necessary.
7.7.5.1 &
7.7.5.2
Heater circuit is open.
Close heater valves (1 in cab, 1
at engine).
5.10.1.1
Too little air circulation over
condenser coil; fins clogged with dirt
or insects.
Clean condenser.
7.9.7.3
Evaporator fins clogged.
Clean evaporator fins (under cab
floor).
7.7.5.4
Too little refrigerant in system.
Contact MacDon dealer.
*
Clogged expansion valve.
Clogged receiver-drier.
Excessive moisture in system.
Air in system.
Thermostat defective or improperly
adjusted.
Replace thermostat.
**
Blower motor sluggish in operation. Contact MacDon dealer.
*
Air Conditioning System Too
Noisy.
Defective winding or improper
connection in compressor clutch coil
or relay.
Contact MacDon dealer.
*
Loose or excessively worn drive
belt.
Tighten or replace as required.
7.8.8.4
Noisy clutch.
Remove clutch for service or
replacement as required.
**
Noisy compressor.
Check mountings and repair.
Remove compressor for service
or replacement.
**
Compressor oil level low.
Add SP-15 PAG refrigerant oil.
**
Blower fan noisy due to excessive
wear.
Remove blower motor for service
or replacement as necessary.
**
Excessive charge in system.
Contact MacDon dealer.
*
Low charge in system.
Contact MacDon dealer.
*
Excessive moisture in system.
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