MacDon 9352 - Air conditioning system too noisy

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.