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4. Spotty Ice Formation
There are small sections on the evaporator where
there is no ice formation. This could be a single corner
or a single spot in the middle of the evaporator. Refer
to Evaporator Tubing Routing on the previous page to
determine your specific models tubing confirmation.
This is generally caused by loss of heat transfer from
the tubing on the backside of the evaporator.
5. No Ice Formation
The ice machine operates for an extended period, but
there is no ice formation at all on the evaporator.
Possible cause: Water fill/float valve, water pump,
starving expansion valve, low refrigerant charge,
compressor, etc.
Q1400C & QDUALC ice machines have left and
right expansion valves and separate evaporator
circuits. These circuits operate independently from
each other. Therefore, one may operate properly
while the other is malfunctioning.
Example: If the left expansion valve is starving, it
may not affect the ice formation pattern on the right
side of the evaporator.
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