Kubota M8540 Workshop Manual page 566

M8540, M9540, WSM
AIR CONDITIONING SYSTEM (Continued)
Symptom
Insufficient Cooling
(Compressor Does
Not Rotate Properly)
Insufficient Cooling
(Others)
Insufficient Heating
Too Low Air Flow
Rate (Blower Motor
Does Not Run)
Too Low Air Flow
Rate (Flow Rate Does
Not Change in 4
Steps)
Too Low Air Flow
Rate (Others)
Insufficient Cooling
(Compressor
Magnetic Clutch
Does Not Work)
Insufficient Cooling
(Hi-pressure Level is
Too High)
Probable Cause
Belt slipping
Magnetic clutch defective
Compressor defective
Thermostat defective
Water valve defective
Condenser fin clogged with dust
Expansion valve defective
Water valve defective
Temperature motor defective
Insufficient coolant
Blower fan switch defective
A/C compressor relay defective
Brush in poor contact
Fuse blown out
Wrong wiring or loose connections
Blower resistor defective
Relay defective
Blower fan switch defective
Blower is not tightened enough
Blower deformed
Blower in contact with casing
Obstacle at or near suction port
Evaporator frosted
Filter clogged
Blow duct clogged or missing
Low battery voltage
Rotor in contact with stator
Wrong wiring loose connections
Relay defective
Coil shortage
Ground malfunction
Coil burst out
Refrigerant overcharged
Condenser clogged with dust and dirt
Air mixed
Adjust or replace
Repair or replace
Replace
Replace
Replace
Clean
Replace
Replace
Check and repair
Replenish
Check and repair
Replace
Replace
Replace
Check and repair
Replace
Replace
Replace
Check and repair
Replace
Check and repair
Check and repair
Clean or replace
Clean or replace
Check and repair
Charge
Replace
Check and repair
Replace
Replace
Check and Repair
Replace
Check with manifold
gauge
Clean
Check with manifold
gauge
10-S2
CABIN
Reference
Solution
Page
G-31
10-S22
10-S43
–
–
G-31
–
–
10-S28
G-9
10-S24
9-S42
–
9-S11
–
10-S27, 45
9-S42
10-S24
10-S27, 45
10-S45
–
–
–
G-30
–
–
10-S44
–
9-S42
–
–
–
10-S21
G-31
10-S15
W1013580
KiSC issued 09, 2008 A