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Component Access & Removal
Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
4-8
#3752200 - Revision B - May, 2006
Water Pump
The water pump is mounted on a bracket on the back
of the bin and sits in the water pan. The water pump is
supplied with an internal overload protector and rotates
at 3350 RPM.
To remove:
1. Though not necessary, it is recommended that the
bin door be removed for easier access.
2.
Remove the water reservoir pan.
3. Remove the screws that secure the pump to the
mounting bracket on the back bin wall.
4. Snap out the water inlet tube from the notch on the
water pump bracket.
5. Remove the water pump outlet tube.
6. Pull the pump forward, out of the socket on the rear
bin wall.
To test:
1. Attach a 120-volt test cord to the water pump plug
(the top two pins). The pump should operate when
power is supplied.
2. Visually check the water pump plug and the socket
on the rear bin wall. They should both be free of
mineral build-up and any signs of overheating.
3. Check the agitator arm on the bottom of the water
pump. It is very important that this arm is not bro-
ken off while removing or replacing the pump.
The agitator arm breaks up bubbles in the water
and prevents an airlock from forming in the impeller
area of the pump.
If the agitator arm is broken off, water may be
prevented from being pumped up to the distributor.
An improperly operating agitator can also cause
other ice making problems and low quality ice.
If there are any problems with pump impeller or agi-
tator, the entire water pump should be replaced.
Mounting
Bracket
Motor
Fan
Motor
Grommets
Agitator
Pump
Impeller
Figure 4-14. Water Pump