00 0293 210 2 - BA DOMINATOR 150/140/130 - 12/09
245
12 Faults and remedies
12.2 Cab / Operator's platform
67088
Malfunction
Possible cause and remedy
Air conditioner shuts down automatically.
• Extremely high outside temperature.
- Let system cool down, then switch it on
again.
- Close door and windows.
Air conditioner does not provide cooling.
Only uncooled air comes out of the air louvres.
• Magnetic clutch does not engage.
- Have clutch replaced.
• Drive belt slack.
- Tension or replace V-belt.
• Cable connections loose.
- Tighten loose or disconnected cables.
• Fuses blown.
- Install new fuse.
• Compressor will not pump coolant.
Expansion valve has frozen.
Saturation of moisture indicator has been
reached.
- Have filter-receiver replaced.
For this, the system has to be discharged
using the correct recovery equipment and
then recharged.
Cool air is blown through the air louvres,
but the air flow is insufficient for cooling the cab.
• Evaporator in cab roof blocked.
- Clean evaporator.
• Evaporator defective.
- Have evaporator replaced (Have air condi-
tioner system discharged and then recharge
with refrigerant).
• Condenser upstream of radiator is soiled.
- Clean condenser.
• Low refrigerant level.
White ball does not float and is at bottom of
indicator.
- Have air conditioning system checked by a
specialist workshop.
• Outside air getting into the cab.
- Close door and windows completely.
Air conditioner provides cool air for a time, then
discharges warm air again.
• Ice formation in the expansion valve.
up to serial no. …:
The filter receiver drier is saturated when the
blue ball has turned pink.
- Have filter-receiver replaced. (Discharge and
then recharge air conditioner.)
from serial no. …:
The filter receiver drier is saturated when the
orange ball has lost its colour.
- Have filter-receiver replaced. (Discharge and
then recharge air conditioner.)
