Faults -8
Version 1.36
02/2004
Cooling errors
Cause
Action
Ref.
1.
Peltier element defective
Measure current of the element (3A at 11V).
5F-1 / PL-5
Replace if defective
2.
Cooling fan defective
Check the input voltage (CN7-2) and fan connectors
5F-1 / PL-5
Rear side of the machine.
3.
Heat sink dirty
Clean the heat sink and remove the cause of excessive
5F-2 / PL-5
dust. Check also the ventilation space.
4.
Temperature sensor error
Check the sensor at an ambient (room) temperature.
5F-2 / PL-5
(20-25°C/68-77°F = 6250-5000 Ohm) and replace if
necessary.
5.
Wiring / control PCB
Check the wiring/connectors. Check the 11V circuit
5K-5
defective
(measuring point). Replace control PCB if necessary.
5K-1 / PL-2
6.
Poor contact / conduction
Check the torque (if the required tools are available)
5F-2 / PL-5
between cooling box, Peltier
and apply conductive paste to the Peltier element.
element and heat sink
Содержание Cafitesse 50
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