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UC2024 and UC2724 Service Manual
Indicator Light Reference
There are four indicator lights visible when the
electrical component drawer is pulled out.
Timer On
• This light is switched ON when the freeze cycle has progressed significantly enough for the evaporator
thermistor to have reached its freeze preset temperature. At this point there are only a few minutes left
in the freeze cycle. It is also switched ON when the harvest cycle has been on and the evaporator has
reached its set defrost temperature.
Bin Full
• Normally OFF. This light is switched on and off by the position of the ice sensing plate.
Freeze Mode
• Normally ON during a freeze cycle. OFF during harvest or ice release.
Anti Slush Mode
• Normally OFF. This light is switched ON when the pump is stopped during a freeze cycle.
A typical cycle begins when there is no ice on the ice sensing plate (Bin Full light OFF). The compressor and
water pump will switch ON and when the discharge pressure increases to the cut in point of the fan pressure
switch the fan motor will begin to rotate the fan. The hot gas and inlet water solenoids are off.
This continues until the evaporator temperature sensor reaches a preset point, which causes the pump to stop
for a few seconds (the Anti Slush Mode light will switch ON). After the Anti Slush light goes out and the water
pump is switched back on, the freeze cycle continues until the evaporator temperature sensor reaches the
timer start point, (Timer Cut In light is switched on).
When the timer has reached the end of its preset freeze time, Harvest begins (the Freeze Mode light is
switched off). The water pump stops, the hot gas valve and inlet water solenoid valve open and the discharge
pressure falls, so the fan motor stops. Harvest continues until the released ice causes the ice sensing plate to
move and the Bin Full light will either: a) blink On and Off, if the ice bin is not full, or b) switch On when the bin
is full and ice is on the ice sensing plate.
If the bin is full the machine will shut off and be in a stand by mode. If not full, the cycle will repeat.
November 2019
Page 12
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Do you have a question about the UC2024 Series and is the answer not in the manual?
Questions and answers
all,lights on bridge sensor are blinking is this normal in freeze mode?
No, it is not normal for all lights on the bridge sensor of the Scotsman UC2024 Series to blink in freeze mode. The document states that each push of the + or - button changes the indicator lights, with a blinking light indicating an adjustment in ice thickness. If all lights are blinking, it may indicate an issue or adjustment in progress rather than normal operation.
This answer is automatically generated