MacDon M205 2010 - Page 208

TROUBLESHOOTING
* See your MacDon dealer
** Refer to Windrower Technical Manual
Form 169469/169470/169471 206 Revision A
SYMPTOM PROBLEM SOLUTION SECTION
Air Conditioning Not
Cooling. (Continued)
Expansion valve stuck in open or closed
position.
Contact MacDon dealer.
*
Broken refrigerant line.
Leak in system.
Compressor shaft seal leaking.
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.
7.7.6.1 &
7.7.6.2
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. 7.9.3
Evaporator fins clogged.
Clean evaporator fins (under cab
floor).
7.7.6.4
Too little refrigerant in system.
Contact MacDon dealer.
*
Clogged expansion valve.
Clogged receiver-drier.
Excessive moisture in system.
Air in system.
Blower motor sluggish in operation.
Thermostat defective or improperly adjusted.
Replace thermostat.
**
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.
7.8.10.2
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.
Excessive moisture in system.
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