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PROBLEM SOLVING GUIDE ELMECO SLUSH MACHINE MODEL FCM
P21 – In SLUSH, COLD & DEFROST modes machine over
freezes or does not freeze at all
Reason_1
This malfunction is generally caused by the thermostat probe, which is positioned incorrectly or
is faulty.
Remedy_1
Remove and replace the thermostat probe (pos 43). Check parameters of the removed probe.
Parameters table in P11
Reason_2
If one tank over freezers and another tank under freeze, most likely wires on the solenoid
valves are inverted.
Remedy_2
Please review below picture for the correct sequence of the wires on the solenoid valves.
Please note that there are three different wire colors corresponding to their coils and tanks
(purple, white and gray):
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