317
Table 2. Problem Cause and Troubleshooting of No Heating:
Area Problem Cause Troubleshooting
H
e
a
t
i
n
g
S
y
s
t
e
m
Water temperature sensor damaged Repair or replace
Blower motor does not rotate Repair or replace
Fan speed adjustment switch damaged Replace
Output air temperature adjustment switch damaged Replace
H
e
a
t
i
n
g
S
y
s
t
e
m
Table 3. Problem Cause and Troubleshooting of Noise:
Problem Cause Troubleshooting
Drive belt loose or worn Replace the drive belt
Cooling electric fan touches other parts Service and eliminate the impact
Blower motor mechanical friction Service and fill the oil
No oil on the motor bearing, dry friction Fill the grease or replac e the bearing
Low battery voltage Charge the battery
Area