120 Part Number STH034 3/12
REACH-IN TEMPERATURE OUT OF RANGE -
CHECK REFRIGERATION SYSTEM AND DOOR
SEAL.
Temperature in reach-in unit above or below
acceptable limits.
Above temperature limit:
• Verify door is closed and door gasket is in place.
• Reboot machine by moving toggle switch off/on.
• Allow refrigeration system to run for 15 minutes
and recheck temperature.
• Refer to Refrigeration diagnostics.
Below temperature limit:
• Check temperature setpoint.
• Check thermistor.
• Check compressor relay on relay circuit board.
HIGH PRODUCT TEMPERATURE - CHECK DUCT
COOLING FAN
Product temperature is greater than 42 F.
• Verify the door was not left open or warm product
was added.
• Reboot machine by moving toggle switch off/on.
• Verify duct fan is operating.
• Allow machine to run for 15 minutes then prime
each product.
• If fault remains check duct temperature with a
digital thermometer to determine if refrigeration or
thermistor diagnostics need to be performed.
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