Ice-O-Matic Gourmet UCG Series Installation And Service Manual page 8

D. Install, if required, the refrigerant service gauges on both the high side and low side Schrader valves
to check the compressor head and suction pressures.
NOTE: The condenser temperature sensor, which is located within the condenser
fins, keep the head (condensing) pressure between 110-130psig (8.5-9.5 bar).
In case the air filter is clogged, preventing the proper flow of air or, in case the fan
motor is out of operation, the condenser temperature rises and when it reaches
160˚F (70˚C), the condenser temperature sensor shuts off the ice maker with the light
up of the red warning LED (Fig. 3) as well as the red alarm light (ON steady).
After having diagnosed the cause of the temperature increase and corrected it, then
it is necessary to unplug (wait a few seconds) and plug back in, thus restarting the
freeze cycle.
The machine restarts with the usual 5 minutes water fill phase in order to provide
enough water into the sump tank.
UCG GOURMET SERIES UNDERCOUNTER
pg. 8