MacDon 9250, Operator'S Manual

Page: 121 / 160

Form # 46584 Issue 11/06 Web Rev_01
119
TROUBLE SHOOTING
SYMPTOM PROBLEM SOLUTION REF.
Air conditioning not
producing sufficient
cooling (continued). Clogged expansion
valve. Recover system
refrigerant and replace
valve. Then, evacuate
and charge system. *
Clogged receiver-drier. Recover system
refrigerant and replace
receiver-drier. Then
evacuate and charge
system. *
Excessive moisture in
system. Recover system
refrigerant and replace
receiver-drier. Then
evacuate and charge
system. *
Air in system. Recover refrigerant,
evacuate and charge
system. *
Thermostat defective or
improperly adjusted. Replace thermostat. *
Blower motor sluggish
in operation. Remove motor for
service/replacement. *
Air conditioning system
too noisy. Defective winding or
improper connection in
compressor clutch coil
or relay. Repair or replace as
necessary. *
Loose or excessively
worn drive belt. Tighten or replace as
required. 66
Noisy clutch. Remove clutch for serv-
ice or replacement as
required. *
Noisy compressor. Check mountings and
repair. Remove
compressor for service
or replacement. *
Compressor oil level
low. Add SP-20 PAG refrig-
erant oil. *
Blower fan noisy due to
excessive wear. Remove blower motor
for service or replace-
ment as necessary. *
Excessive charge in
system. Discharge excess
refrigerant until pressure
drops within specs.
(Always recover
discharged refrigerant.) *
Low charge in system. Check system for leaks,
charge system.
* See your Windrower dealer.