MacDon M205 Operators Manual - Manual (Page 440)

TROUBLESHOOTING
6.7 Cab Air Troubleshooting
Symptom Problem Solution Section
Burned out motor
Burned out switch
Motor shaft tight or bearings
worn
Faulty wiring—loose or broken
Blower fan will not
run
Blower rotors in contact with
housing
Contact Dealer. Contact Dealer.
Dirty fresh air filter Clean fresh air filter.
Cleaning Engine
Air Filter Primary
Element, page 324
Dirty recirculating air filter Clean recirculating filter.
Cleaning Return
Air Cleaner, page
310
Evaporator clogged Clean evaporator.
Cleaning Air
Conditioning
Evaporator Core,
page 312
Blower fan
operating but no
air coming into cab
Air flow passage blocked Remove blockage. —
Heater shut-off valve at engine
closed
Open valve.
3.10.1 Heater
Shut-Off, page
56
Defective thermostat in engine
water outlet manifold
Replace thermostat.
Heater temperature control
defective
Replace control.
Heater not heating
No thermostat in engine water
outlet manifold
Install thermostat.
Contact Dealer.
Plugged drainage hose Blow out hose with compressed air. —
Odor from air
louvers
Dirty filters Clean filters.
Cleaning Engine
Air Filter Primary
Element, page
324
and Cleaning
Return Air Cleaner,
page 310
169887 424 Revision A