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_MC-045_5s.book Seite 23 Freitag, 16. September 2011 11:16 11
CoolFreeze MC-045
Problem
Electric circuit between
the pins in the compres-
sor interrupted
U
Voltage between the positive and negative terminals of the electron-
KL
ics
U
Cut-in voltage of the electronics
ON
Cut-off voltage of the electronics
U
OFF
Poor cooling, interior temperature increases
Problem
Compressor runs for a
long time/continuously
Compressor runs inter-
mittently
Unusual noises
Problem
Loud humming
Possible cause
Defective compressor
Possible cause
Vaporiser is iced over
Ambient temperature too high
Insufficient ventilation and/or air supply Move the compressor
Liquefier is dirty
Fan defective (if installed)
Battery capacity exhausted
Possible cause
A component of the refrigerant circuit
cannot move freely (touching the wall)
Foreign body jammed between the
cooling unit and the wall
Fan noise (if installed)
Troubleshooting
Remedy
Replace the compressor
Remedy
Defrost the vaporiser
–
cooler to another position
Clean the liquefier
Replace the fan
Charge the battery
Remedy
Bend the component care-
fully away from the
obstruction
Remove the foreign body
–
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