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Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
Installation & Maintenance
2-9
#3752200 - Revision B - May, 2006
Figure 2-17. Water Deflector
Figure 2-18. Water Deflector
Normal Consumer Maintenance
The minerals rejected from the circulating water during
the ice-making cycle may eventually form a hard scaly
deposit in the water system, inhibiting the release of the
ice slab from the evaporator.
It is necessary to periodically clean the units water sys-
tem to remove the mineral scale build-up. The frequen-
cy of cleaning will depend on the hardness of the water.
To clean the water system:
1. Set the service control switch to the “OFF” position.
2. Open the bin door and remove the thumbscrews
that secure the ice cutter grid. Slide out the cutter
grid, and disconnect the grid wiring harness.
3. Remove all of the ice from the bin and from the
evaporator freezing plate.
4.
Remove the drain plug from the bottom of the water
reservoir pan. When the pan is completely drained,
replace drain plug.
5.
Pour 1/2-gallon (approximately 2 liters) of hot tap
water into the water reservoir pan. Turn the service
control switch to the “CLEAN” position. Allow the
hot water to circulate for 5 minutes. This will warm
the system and make the cleaning solution more
effective.
6. While the hot water is circulating, prepare the ice
maker cleaning solution.
NOTE:
Always wear gloves while handling ice maker
cleaner.
Preparing Cleaning Solution From Acid Crystals
Citric acid crystals are available from most pharmacies
and some plumbing supply houses. Mix 6 oz. (170 g)
of powdered citric acid crystals into 1/2 gallon of hot
water.
NOTE:
Always mix the crystals into the entire 1/2 gallon
of water.
If there is ice on the cutter grid, melt it off under
running warm water in sink. DO NOT try to pick
the ice off the grid wires. Attempting to pick the
ice slab off the cutter grid may stretch and dam-
age grid wires.
ON
OFF
CLEAN
Water Reservoir
Thumb Screws
Insert into Drain
Drain Plug
Disconnect Harness
Cutter Grid
WHEN USING POWDERED ACID CRYSTALS TO
MAKE A CLEANING SOLUTION, USE ONLY CITRIC
ACID. DO NOT USE POWDERED PHOSPHORIC
ACID.
