Digital air- conditioner controller KR- 454
Position
:
Behind the steering wheel in the pedal area
Reason :
A wire of the sensor is disconnected
Plug connection broken
Cable cut off or broken
Measure:
Check connection at the air-conditioner controller or sensor
Check cable in its full length
E23
Short circuit sensor front box upper deck
Position
:
Blow out duct front box
Reason :
Sensor cable defective
Measure:
Isolate or exchange cable (No.1808.001.10)
E24
Discontinuity sensor front box upper deck
Position
:
Blow out duct front box
Reason :
A wire of the sensor is disconnected
Plug connection broken
Cable cut off or broken
Measure:
Check connection at the air-conditioner controller or sensor
Check cable in its full length
E33
Air-conditioner compressor no check-back
Position
:
Engine compartment, facing the front right, at the side of the engine
Reason
:
Maximum- and minimum pressure switch defective; plug connection
loose or defective
Fuse air-conditioner compressor defective
Danger of icing
Air-flow rate too little
Vaporizer fan failed
Heat exchanger fan failed
Heat exchanger fan connected wrongly
No recovery diode at the compressor clutch
Flap circulating/fresh air not connected properly
Ceck-back compressor clutch to air-conditioner controller interrupted
Control relay of compressor clutch defective
No V-belt to the compressor clutch
Measure:
Check maximum- and minimum pressure switch
Check fuse compressor and replace it if necessary
Check cable connections
Check compressor level indicator
Check vaporizer- and heat exchanger fan and replace it if necessary
Check filter cloth, clean or replace it if necessary
Check compressor clutch (recovery diode, control relay)
Check flap circulating/fresh air
Check V-belt to the compressor clutch
INDUSTRIE-ELEKTRONIK
Control and regulating systems for vehicle air conditioning
D-71691 Freiberg a.N.,
Siemensstr.21
Phone: +49 7141 / 68877 - 0
Fax: +49 7141 / 68877 - 39
page: 38
of:
42
04541530.SDW
Issue: October 1998 - Copyright (C) BADER GmbH - Alterations reserve
