wsm M7060 - Page 583

CABIN
M6060, M7060, WSM
9-S1
1. TROUBLESHOOTING
COMPRESSOR
AIR CONDITIONING SYSTEM
Symptom Probable Cause Solution
Reference
Page
Noisy
(Compressor ON)
Bearing of compressor worn or damaged Replace 9-S37
Valves in compressor damaged Replace 9-S37
Belt slipping Adjust or replace G-28
Compressor bracket mounting screws loosen Tighten 9-S37
Piping resonant Tighten or add clamp 9-S15
Noisy
(Compressor OFF)
Blower damaged Repair or replace 9-S28
Bearings of magnetic clutch, idle pulley or crank
pulley worn or damaged
Replace 9-S44
Symptom Probable Cause Solution
Reference
Page
Does Not Cool
(No Air Flow)
Fuse blown Replace 8-S11
A/C compressor relay damaged Replace 8-S45
A/C blower motor damaged Replace 9-S28
A/C blower switch damaged Replace 9-S28
Wiring harness disconnected or improperly
connected
Repair –
Does Not Cool
(Compressor Does
Not Rotate)
Fuse blown Replace 8-S11
Magnetic clutch damaged Repair or replace 9-S44
A/C switch damaged Replace 9-S26
Pressure switch damaged Replace 9-S31
Belt slipping Adjust or replace G-28
Does Not Cool
(Others)
Insufficient refrigerant Check with manifold
gauge
9-S20
Expansion valve damaged Replace 9-S16
Compressor damaged Replace 9-S23
Insufficient Cooling
(Insufficient Air Flow)
Air filter clogged Clean or replace G-32
Evaporator frosted Clean or replace
thermo switch
9-M3
A/C blower motor damaged Replace 9-S28
A/C blower resistor damaged Replace 9-S28
Insufficient Cooling
(Many Bubbles in
Sight Glass)
Insufficient refrigerant Check with manifold
gauge
9-S14,
9-S20
Gas leaking from some place in refrigerating
cycle
Repair and charge
refrigerant
9-S14
Air mixed in Check with manifold
gauge
9-S15
Insufficient Cooling
(No Bubbles in Sight
Glass)
Too much refrigerant Check with manifold
gauge
9-S16
KiSC issued 08, 2013 A