LOAD KING 80-160, Operator'S Manual

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251
Fault Cause Remedy
No or insufficient heating power Oil supply temperature to low Wait until the engine is warm
Heat exchanger fins
contaminated
Check heat exchanger and
clean it if necessary
Filter contaminated Clean or change filter
Heat exchanger does not have
oil flowing through it.
Air flap no more adjustable Foreign body blocks flap Check flap, remove foreign
body
Flap bearing defective Check and exchange flap
bearing, if necessary.
Servo motor defective Change servo motor
Operation element defective Change operation element
Compressor does not work Interuption in the magnetic coil
of the compressor
Check current flow to the clutch
V-belt loose or torn Adjust belt tension, change belt
V-belt slides or does not turn on
the v-belt even though coupled.
Check, repair, change
compressor
Compressor clutch slides Repair clutch or change
compressor
Control unit defective Check control unit and change if
necessary
Evaporator flooded Expansion valve is stuck in
open position and / or clings
Change expansion valve
Evaporator icy Thermostat tracer in the wrong
position
Tracer must be newly positioned
Expansion valve or thermostat
defective
Renew expansion valve or
thermostat or receiver drier
Evaporator clogged Cooling ribs contaminated Clean evaporator
Loss of refrigerant Interruption of the refrigerant
pipe
Check all pipes for leaks
through external influences or
chafing
Leak within the unit Evacuation, filling, leakage
check and repair to be made