7.4Troubleshooting

Problems with this equipment may be grouped into five broad categories:

1.Failure or malfunction of a 24VAC Power-Supply System component.

2.Failure or malfunction of a Control System component.

3.Failure or malfunction of an Autofill/Autoskim System component.

4.Failure or malfunction of a Water Heating System component.

5.Failure or malfunction of a Basket Lift System component (on units so equipped).

Sections 7.4.1 through 7.4.5 briefly explain the functioning of each of the systems mentioned above. Section 7.4.6 contains troubleshooting guides that provide systematic procedures to isolate and identify the specific source of a problem. Wiring diagrams are located at the end of the chapter.

7.4.1 How the Power-Supply System Works

Line voltage is supplied to the system via a power cord that is plugged or hard-wired into the store’s electrical service. The power cord is attached to a three-lug power terminal block. One set of three wires delivers line voltage from the load side of the block to the line side of the contactor. A second set of two wires delivers line voltage to the 24VAC transformer. Line voltage for the heating element is delivered from the load side of the contactor through the 6-pin connector on the rear of the contactor box. 24VAC for the remaining components is distributed to and from the contactor box via the 15-pin connector on the front of the box.

On units with basket lifts, a separate set of two wires delivers line voltage from the terminal block to the basket lift 24VAC transformer. From the transformer, the 24VAC is delivered to the interface board via the 12-pin connector on the interface board. Line voltage for one side of the basket-lift- motor circuits is delivered directly to the motors from the terminal block via the 15-pin connector on the front of the contactor box. Line voltage for the other side of the basket-lift-motor circuits is supplied via the basket lift relays mounted on the interface board through the 5-pin connector on the interface board. All line and 24VAC power except the line voltage for the elements is distributed to and from the contactor box via the 15-pin connector on the front of the box.

7.4.2 How the Computer Works

The CM III computer provides the interface between the operator and the system components. 24VAC from the transformer is supplied through Pin 7 of the 9-pin connector on the interface board. The 24VAC is rectified to 12VDC and delivered to the computer via Pins 1 and 3 of the 15-pin connector. Internal circuitry senses the water temperature. Depending upon the conditions sensed, the computer energizes or de-energizes the heating element (via the contactor coil) to control water temperature. The computer also controls the lowering and raising of the basket lifts, and activates an audible alarm to signal the operator that a cooking cycle has completed. The computer signals for heat via Pin 4 of the 15-pin connector. The temperature probe connects to Pins 13 and 14 of the 15- pin connector. The basket lift relays connect to Pins 7 (right) and 9 (left), and the sound device connects to Pin 11 of the 15-pin connector.

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Frymaster ESW, 17ECS, EWBS manual Troubleshooting

17EC, 17ECS, EWBS, ESW specifications

Frymaster, a leader in the foodservice equipment industry, offers a range of fryers designed to enhance productivity and quality in commercial kitchens. Among these, the Frymaster ESW, EWBS, 17ECS, and 17EC models stand out due to their innovative features, advanced technologies, and user-friendly designs.

The Frymaster ESW fryer is engineered for high-efficiency frying while maintaining excellent food quality. It incorporates a built-in oil filtration system, allowing operators to extend the life of oil, reduce frying costs, and ensure consistent product quality. The ESW is designed with energy efficiency in mind, which not only minimizes operational costs but also helps restaurants reduce their environmental footprint. Its programmable controls enable seamless operation, and the easy-to-read display assists staff in monitoring frying times, temperatures, and oil conditions.

The EWBS model is equipped with a robust design that focuses on convenience and reliability. One of its key features is its large fry pot, which enables high-capacity frying, reducing cooking time and increasing output during peak hours. The EWBS fryer also maximizes versatility, allowing operators to prepare a wide variety of menu items. It features adjustable frying baskets, which are designed to accommodate foods of different sizes. Additionally, the model includes energy-efficient burners that result in quicker recovery times and lower gas consumption.

The 17ECS and 17EC models are designed for compact spaces without sacrificing performance. Featuring digital controls and simplified interfaces, they provide operators with precise temperature management. The 17ECS is known for its superior oil management system, which enhances oil life and maintains food quality. The 17EC, on the other hand, offers a variety of programmable cooking options, making it ideal for establishment with diverse culinary needs.

Both the 17ECS and 17EC also emphasize safety, incorporating features such as automatic shutoff and cool-touch handles, which help prevent burns and accidents in fast-paced kitchen environments. These fryers are built with durable materials that ensure longevity, making them a worthy investment for any restaurant or foodservice operation.

Together, the Frymaster ESW, EWBS, 17ECS, and 17EC models represent a commitment to innovation in commercial frying technology, combining energy efficiency, user-friendly interfaces, and versatile cooking capabilities that cater to the needs of modern kitchens. As restaurants continue to evolve, these fryers provide the reliability and performance necessary to meet demand and maintain high-quality standards.