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DUKE Model 957R Soft Serve Freezer
Troubleshooting Table - continued
Dispensed
product too
hard.
1
Cylinder thermostat erratic or set too
cold.
1
Adjust thermostat or contact your
authorized service company for
service.
2
Faulty time delay (unit runs all the
time.)
2
Contact your authorized service
company for service.
3
Low suction pressure.
3
Contact your authorized service
company for service.
4
Low overrun.
4
Check overrun. If low, see Pump
Manual, Troubleshooting Table.
5
Spigot switch electrically or
mechanically stuck closed.
5
Contact your authorized service
company for service.
Machine runs
continuously
and product
continues to
get colder.
1
Spigot switch rod engaged.
1
Close spigot completely.
2
Spigot switch out of adjustment or
defective.
2
Contact your authorized service
company for service.
3. Faulty thermostat or bulb not deep
enough in well.
3
Contact your authorized service
company for service.
4
Starter or relay contacts stuck.
4
Contact your authorized service
company for service.
5
Faulty time delay.
5
Contact your authorized service
company for service.
6
Suction pressure too low.
6
Contact your authorized service
company for service.
PROBLEM
PROBABLE CAUSE
REMEDY
Product
dispenses
slowly out
dispensing
head.
1
Product too cold.
1
See "Dispensed product too hard"
(this section).
2
Reverse rotation on beater.
2
Have electrician correct rotation to
clockwise as viewed from the front of
freezer.
3.
Pump problem.
3.
See pump manual Trouble-Shooting
Chart.