Waeco CoolMatic CD30, Installation And Operating Manual

Page: 25 / 204

EN
CD30 Troubleshooting
25
11 Troubleshooting
!
Compressor does not run
Interior temperature too low in the “MIN” thermostat setting
WARNING!
This device may only be repaired by specialist personnel. Inade-
quate repairs can lead to considerable hazards.
Feature Possible cause
U
KL

0 Volt Connection supply line interrupted
Battery/main electronic switch defective (if installed)
Additional supply line fuse has blown (if installed)
U
KL

U
ON
Battery voltage is too low
During attempted start up
U
KL

U
OFF
Loose cable connection/poor contact (corrosion)
Cable cross section too small
Battery capacity too low
During attempted start up
U
KL

U
ON
.
Ambient temperature too high
Insufficient ventilation
Condensor is dirty
Fan defective (if installed)
Electric circuit between
the pins in the compressor
interrupted Defective compressor
U
KL
Voltage between the positive and negative electronic terminals
U
ON
Switch on voltage of the electronic connection terminals
see chapter “Technical description” on page 20)
U
OFF
Switch off voltage of the electronic connection terminals
see chapter “Technical description” on page 20)
Feature Possible cause Remedy
Compressor runs
continuously Thermostat sensor has no contact to the
vaporiser Secure the sensor
Short circuit in the thermostat line Change the thermostat
Thermostat defective
Compressor runs for a
long time Large quantities have been frozen in the
vaporiser compartment