MacDon 9352 Operator's Manual Page 119

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  • TROUBLESHOOTING
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Form # 46584 Issue 11/06 Web Rev_01
117
TROUBLE SHOOTING
SYMPTOM
PROBLEM
SOLUTION
REF.
Cab Air System See page 112 for possible causes of abnormal high side / low side pressure.
Blower fan will not run.
Burned out motor.
Replace motor.
*
Burned out switch.
Replace switch.
*
Motor shaft tight or
bearings worn.
Repair motor.
*
Faulty wiring - loose or
broken.
Repair or replace wiring.
*
Blower rotors in contact
with housing.
Replace rotors and/or
housing.
*
Blower fan operating but
no air coming into cab.
Dirty fresh air filter.
Evaporator clogged.
Clean filter.
Clean evaporator.
110
111
Air flow passage
blocked.
Remove blockage.
---
Heater not heating.
Heater shut-off valve at
engine closed.
Open valve.
21
Defective thermostat in
engine water outlet
manifold.
Replace thermostat.
*
Heater temperature
control defective.
Replace control.
*
No thermostat in engine
water outlet manifold.
Install thermostat.
*
Odour from air louvers.
Plugged drainage hose.
Blow out hose with
compressed air.
---
Dirty filters.
Clean filters.
110, 111
Air conditioning not
cooling.
Low refrigerant level.
Add refrigerant
*
Switch contacts in
thermostat burned
excessively, or sensing
element defective.
Replace thermostat.
*
Clutch coil or relay
burned out or
disconnected.
Check current flow to
clutch or relay. Replace
if inoperative.
*
Condenser fins plugged.
Clean condenser.
79
Blower motor discon-
nected or burned out.
Check current flow to
blower motor. Repair or
replace if inoperative.
*
* See your Windrower Dealer.
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