Kubota WSM L3560, Workshop Manual

Page: 744 / 801

CABIN
L3560, L4060, L4760, L5060, L5460, L6060, WSM
10-S1
1. TROUBLESHOOTING
COMPRESSOR
AIR CONDITIONING SYSTEM
Symptom Probable Cause Solution
Reference
Page
Noisy
(Compressor ON)
Bearing of compressor worn or damaged Replace 10-S45
Valves in compressor damaged Replace 10-S45
Belt slipping Adjust or replace G-29
Compressor bracket mounting screws loosen Tighten –
Piping resonant Tighten or add clamp –
Noisy
(Compressor OFF)
Blower damaged Repair or replace –
Bearings of magnetic clutch, idle pulley or crank
pulley worn or damaged
Replace 10-S45
Symptom Probable Cause Solution
Reference
Page
Does Not Cool
(No Air Flow)
Fuse blown Replace G-45
A/C compressor relay damaged Replace 10-S29
A/C blower motor damaged Replace 10-S27
A/C blower switch damaged Replace 10-S23
Wiring harness disconnected or improperly
connected
Repair –
Does Not Cool
(Compressor Does
Not Rotate)
Fuse blown Replace G-45
Magnetic clutch damaged Repair or replace 10-S22
A/C switch damaged Replace 10-S24
Pressure switch damaged Replace 10-S30
Belt slipping Adjust or replace G-29
Does Not Cool
(Others)
Insufficient refrigerant Check with manifold
gauge
10-S13
Expansion valve damaged Replace –
Compressor damaged Replace 10-S45
Insufficient Cooling
(Insufficient Air Flow)
Air filter clogged Clean or replace G-30
Evaporator frosted Clean or replace
thermo switch
–
A/C blower motor damaged Replace 10-S27
A/C blower resistor damaged Replace 10-S26
Insufficient Cooling
(Many Bubbles in
Sight Glass)
Insufficient refrigerant Check with manifold
gauge
10-S13
Gas leaking from some place in refrigerating
cycle
Repair and charge
refrigerant
10-S19
Air mixed in Check with manifold
gauge
10-S13
Insufficient Cooling
(No Bubbles in Sight
Glass)
Too much refrigerant Check with manifold
gauge
10-S13
KiSC issued 03, 2016 A