MacDon M205 - Page 458

214603 438 Revision A
Symptom
Problem
Solution Reference
Air conditioning not
producing
sufficient cooling.
43
Compressor clutch slipping
Remove clutch assembly for service
or replacement.
Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Thermostat defective or
improperly adjusted
Replace thermostat.
Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Clogged air filters
Remove air filters, and clean or
replace as necessary.
Cleaning Engine
Air Filter Primary
Element, page 321
and Cleaning
Return Air
Cleaner/Filter,
page 306
Air conditioning not
producing
sufficient cooling.
43
Heater circuit is open
Close temperature control in cab,
and valve on engine.
3.10.3 Climate
Controls, page 59
and 3.10.1 Heater
Shut-Off, page 58
Air conditioning not
producing
sufficient cooling.
43
Insufficient air circulation over
condenser coil; fins clogged
with dirt or insects
Clean condenser.
5.7.3 Air
Conditioning
Condenser, page
307
Air conditioning not
producing
sufficient cooling.
43
Evaporator fins clogged
Clean evaporator fins (under cab
floor).
Cleaning Air
Conditioning (A/C)
Evaporator Core,
page 308
Air conditioning not
producing
sufficient cooling.
43
Refrigerant low Contact Dealer. Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Clogged expansion valve Contact Dealer. Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Clogged receiver-drier Contact Dealer. Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Excessive moisture in system
Contact Dealer. Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Air in system
Contact Dealer. Contact Dealer
Air conditioning not
producing
sufficient cooling.
43
Blower motor sluggish in
operation
Contact Dealer. Contact Dealer
TROUBLESHOOTING
43.
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.