Insufficient Cooling; Temperature Cannot ; Control Dial - Page 746

CABIN

L3560, L4060, L4760, L5060, L5460, L6060, WSM

10-S3

Insufficient Cooling
(Low-pressure Level 
is Too High)

Refrigerant overcharged

Check with manifold 

gauge

10-S13

Heat-sensitive tube in poor contact

Check and repair

–

Expansion valve too open

Replace

–

Insufficient Cooling
(Low-pressure Level 
is Too Low)

Refrigerant too short

Check with manifold 

gauge

10-S13

Gas leak at heat-sensitive tube

Replace

–

Evaporator frosted

Clean or replace

–

Low-pressure pipe in trouble

(Cracked or clogged)

Replace

10-S50

Expansion valve clogged

Replace

–

Insufficient Cooling
(Both Hi-pressure 
and Low-pressure 
Level is Too High)

Refrigerant overcharged

Check with manifold 

gauge

10-S13

Insufficient Cooling
(Both Hi-pressure 
and Low-pressure 
Level is Too Low)

Refrigerant too short

Check with manifold 

gauge

10-S13

Temperature Cannot 
be Controlled
(Temperature Motor 
and / or Temperature 
Control Dial 
Malfunction)

Temperature motor damaged

Replace

10-S27

Temperature control dial damaged

Replace

10-S26

Wiring harness connector disconnected

Repair or replace

–

Temperature Cannot 
be Controlled
(Water Valve Does 
Not Open Properly)

Cable wrongly set

Repair

10-S49

Cable disconnected

Repair

10-S49

Temperature Cannot 
be Controlled
(Mode Motor and / or 
Mode Switch 
Malfunction)

Mode motor damaged

Replace

10-S27

Mode switch damaged

Replace

10-S23

Wiring harness controller disconnected

Repair or replace

–

Temperature Cannot 
be Controlled
(Heater Hoses Laid is 
Bad)

Heater hose caught

Repair

10-S51

Heater hose twisted or bent

Repair or replace

10-S51

Symptom

Probable Cause

Solution

Reference 

Page

KiSC issued 03, 2016 A