Scotsman C1448R Manuel d'utilisateur télécharger pdf (Page 64)

Water Pump

1. Test using the controller’s indicator lights. Check the indicator light during the freeze cycle.

The light will be On for all but the 30 second anti-slush period, so observe the light for one

minute. When it is On, check the water pump, it should be operating. If not, check voltage to

the pump. If low check the voltage from the controller to ground. The water pump pin is

number 6. If there is voltage at that pin to ground, but very low voltage at the pump motor,

there must be a broken wire in the harness. If the voltage is low at pin 6, the controller should

be replaced.

2. Test using an ohmmeter. Disconnect electrical power. Unplug the water pump motor leads

from the harness. Measure the resistance of the motor windings. If open, replace the pump.

Measure resistance to ground. If there is any, replace the pump.

September 2006 Page 64

Test Procedures - Loads

Water pump light is ON when

pump is in operation.

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Scotsman C1448R Manuel d'utilisateur Page 64