SECTION 4: SERVICE PROCEDURES

WATER LEVEL CONTROL

WATER LEVEL CONTROL: This water level control is used on this machine in conjunction with a sensor, master switch, ther- mostat all of which help control the action of the wash tank heater. The wash heater water level control is energized when the master switch is turned on.

When the water level decreases in the wash tank, the sensor (probe) sends a signal to the control which deactivates the plug- in relay (located on the control circuit board). When the relay deactivates, one set of its contacts return to a normally open posi- tion. The thermostat and wash heater are connected in series with these contacts and at this time de-energizes the wash tank heat circuit (thermostat & wash heaters). When the proper water level is restored the relay reactivates and closes the normal- ly open contacts to energize the wash-heat circuit. Note: The master & heat switch must be on and the wash tub full to the probe level for the wash-heat circuit to work.

SYMPTOMS OF LEVEL CONTROL FAILURE:

1.Wash-heat circuit not energized by control. (Wash temperature not maintained by heater.)

2.Wash heater stays on with machine master and heat switch on yet no water in wash tub.

PROCEED WITH CHECKOUT:

1.Remove power to machine by turning circuit breaker to its “OFF” position.

2.Remove the 4 screws holding the control panel on the control box. Remove panel and attach to one side of control box with

2screws.

3.Locate wash-heat water level control board and disconnect wires going to terminals marked C & H. Mark and insulate wires for replacement.

4.Re-apply power to machine. With an insulated jumper wire, touch jumper between terminals C & H, relay in clear plastic cube should activate as wire touched to terminals, observe relay contacts, they should pull in.

5.If relay operates, the control can be deemed operational and other causes should be explored. EXAMPLE: Wash element (open ore shorted) thermostat is defective or needs adjustment. See thermostat page for checkout.

6.If relay does not operate, replace control to see voltage is being applied to L1 - L2 marked on control.

7.In any case, always locate sensor (probe) inside wash tub and clean off all deposits (instruct customer, this should be done on a weekly basis).

8.Other checks can be made using the wash tank heater system checkout shown on another page.

9.Remove power to machine and replace wires that were removed in the steps above.

Sensor, Lundy Probe

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Jackson 10U, dishmachines Service Procedures Water Level Control, Symptoms of Level Control Failure, Proceed with Checkout
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10U, 10AB, 10A, 10APRB, dishmachines specifications

The Jackson 10A, 10U, 10APRB, and 10AB series of dishmachines have made significant strides in commercial dishwashing technology. Designed for high efficiency and durability, these machines cater to various establishments, from restaurants to cafeterias, ensuring cleanliness and sanitation in a fast-paced environment.

The Jackson 10A model stands out for its advanced washing capabilities. Featuring a powerful pump and a unique wash arm design, it delivers an exceptional cleaning performance by ensuring thorough coverage of all dishware. This model is equipped with a high-temperature rinse option that sanitizes dishes effectively, meeting health department standards. Additionally, its energy-efficient heating elements contribute to reduced operational costs while maintaining optimal cleaning temperatures.

The Jackson 10U model is particularly notable for its user-friendly design and compact footprint. This makes it an ideal choice for smaller kitchens where space is at a premium. It boasts a high cycle speed, which allows for quick turnover of dirty dishes. The innovative control system lets operators easily set wash cycles and monitor machine performance, ensuring maximum efficiency and reducing water waste.

On the other hand, the Jackson 10APRB is engineered for versatility, capable of handling various types of dishware, including delicate glassware and sturdy pots. This model features adjustable shelves and a flexible design that accommodates different load sizes. The inclusion of an automatic chemical dispensing system ensures that the right amount of detergent is used, optimizing wash results while minimizing chemical costs.

The Jackson 10AB is designed for heavy-duty use, perfect for establishments with high dishwashing demands. This robust machine integrates a multi-stage filtration system to capture food particles and debris, prolonging the life of the appliance. Its high-speed wash cycles significantly enhance productivity, allowing for a steady stream of clean dishware with minimal downtime.

All models in the Jackson series are equipped with cutting-edge technology, including energy-efficient motors and low-water consumption features, making them environmentally friendly options for commercial kitchens. The advanced diagnostics and monitoring systems help operators troubleshoot any issues that arise, ensuring consistent operation and reducing maintenance time.

In conclusion, the Jackson 10A, 10U, 10APRB, and 10AB dishmachines exemplify innovation in commercial dishwashing technology. With features that emphasize efficiency, versatility, and durability, these machines are vital assets in any food service operation, delivering cleanliness and meeting rigorous health standards with ease.
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