Part 4:
CLEANING AND MAINTENANCE
4.3 Deliming Schedules (All Models)
Your dishwasher should be delimed regularly depending on the mineral content of your water. Inspect
the machine interior for mineral deposits (white residue) and use a deliming solution for the best
cleaning results.
WARNING:
Deliming solutions or other acids must not come in contact with household bleach
(sodium hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine.
Mixing will cause hazardous gases to form.
Skin contact with deliming solutions can cause severe irritation and possible chemical burns.
WARNING:
Consult your chemical supplier for an appropriate deliming solution, usage instructions,
protective gear and specific safety procedures.
The following general instructions are provided to assist the operator in deliming the dish-
washer. In no case do these instructions supersede the chemical supplier's instructions in
the use of a specific deliming product.
4.1.2 Deliming Procedure (All Models)
1. Remove all racks and wares from the dishwasher.
2. Remove chemical pick-up tubes from the containers and place in a catch pan on the floor.
• UH-200B, UH-200, UH-100B, UH-100 may utilize detergent and rinse aid.
• UL-100 utilizes detergent, rinse aid, and sanitizer.
3. Push POWER button to enter auto-shutdown cycle if machine is already on.
4. Push POWER button again to fill machine.
5. Run four (4) automatic cycles to clear chemical from chemical supply tubing.
6. Push POWER button to enter auto-shutdown cycle and drain the machine completely.
7. Push POWER button to fill machine.
8. Open door and add deliming solution (per chemical supplier's instructions)
directly in wash tank.
• UH-200B, UH-200 hold 3.6 US gal. [13.6 liters] of water.
• UH-100B, UH-100 hold 1.8 US gal. [6.8 liters] of water.
• UL-100 holds 2.3 US gals. [8.7 liters] of water
9. Close door.
10. Push START button and immediately push EXTENDED WASH button.
11. Run machine in extended wash mode (per chemical supplier's recommended time).
12. Push EXTENDED WASH button to exit extended wash mode.
Machine will complete automatic cycle.
13. Open door and inspect interior for mineral deposits. Repeat steps 3-11 if required.
14. Run four (4) additional cycles to flush all deliming chemicals from machine.
15. Replace chemical pick-up tubes in containers and prime the chemical dispensing system.
16. Deliming is complete.
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