ELECTRIC FRYERS - ELECTRICAL OPERATION

COMPUTER CONTROL BOARD DIAGNOSTICS

NOTE: The computer control is also used on other equipment and is capable of displaying many different prompts. Therefore some prompts not applicable may display when a problem occurs in the wiring harness. Since the computer is looking for either 24 VAC or 24 VAC ground on particular pins, an open connection can cause a non applicable prompt to appear. Refer to “Computer Control Harness Pin-outs Chart”

For operator programming and operation refer to that section in the Instructions Manual.

Diagnostics is divided into two areas, “operation” and “service”. Operation mode is the usual mode of fryer operation. Service mode is intended to give the service person more information regarding the nature of the failure. In either mode the unit operates normally until an error occurs. In that case what is displayed will be different. The chart below shows what is displayed for both “operation” and “service” modes.

Service mode is entered by pressing the product 3 and product 4 keys while turning on the power to the fryer computer. Once in service mode you can only exit it by turning off the power switch.

The following displays/system responses will be given for the noted failure conditions.

FAILURE

OPERATION MODE

SERVICE MODE

SYSTEM RESPONSE

 

DIAGNOSTICS

DIAGNOSTICS

 

 

DISPLAY

DISPLAY

 

 

 

 

 

Ignition (gas

IGN FAILURE

IGN FAILURE with L or R

Heat off

heat)

 

for split vat

 

 

 

 

 

Low

LOW TEMP

LO TEMP XXXF

Heat off

Temperature

 

 

 

(lack of heat)

 

 

 

 

 

 

 

High

HIGH TEMP

HI TEMP XXX￿F

Heat off

temperature

 

 

 

(1st limit)

 

 

 

 

 

 

 

High

OFF

OFF

Hardware limit, Vat off

Temperature

 

 

 

(2nd limit)

 

 

 

 

 

 

 

Tilt Switch open

OFF

OFF

Vat off

 

 

 

 

Clogged Filter

turn on AIR indicator

turn on AIR indicator

none

(gas heat)

 

 

 

 

 

 

 

Probe

CALL SERVICE

PROBE OPEN R or L for

Heat off

 

 

split vat

 

 

 

PROBE SH R or L for split

 

 

 

vat

 

 

 

 

 

Door Open

CLOSE DOOR

CLOSE DOOR

Heat off

 

 

 

 

Self check

CALL SERVICE

MICRO FAIL

System to backup mode

 

 

 

 

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Vulcan-Hart ERD40 service manual Computer Control Board Diagnostics

ERD40 specifications

The Vulcan-Hart ERD40 is a premium commercial deep fryer designed for high-volume food service operations. Renowned for its durability and efficiency, this fryer is a staple in restaurants, catering services, and other culinary establishments where consistent performance and speed are paramount.

One of the standout features of the ERD40 is its impressive cooking capacity. With a large frying pot, the fryer can handle substantial volumes of food, making it ideal for busy kitchen environments. It typically includes twin fry pots which allows simultaneous frying of different food items, enhancing productivity and serving speed without compromising on quality.

The fryer is equipped with advanced temperature control technology, which ensures precise temperature regulation. This feature is crucial for achieving perfect frying results and maintaining the quality of fried foods. The temperature can be easily adjusted, providing the flexibility needed for different cooking requirements.

Another key technology incorporated into the Vulcan-Hart ERD40 is its efficient oil filtration system, which helps extend the life of the cooking oil. This system filters out food particles and contaminants, keeping the oil clean and reducing the need for frequent oil changes. As a result, operators can save on both oil costs and maintenance time, ultimately increasing profitability.

The design of the ERD40 prioritizes user convenience and safety. It includes features such as a hinged lid for easy access and an ergonomic design to minimize the risk of spills and burns. Additionally, the fryer is constructed with robust materials that ensure longevity, even under heavy use.

Cleaning and maintenance are made straightforward with removable parts and easy-to-access components, allowing for quick disassembly and thorough cleaning. This attention to detail helps maintain hygiene standards crucial in food service environments.

With its combination of durability, efficiency, and advanced frying technology, the Vulcan-Hart ERD40 is an excellent investment for any commercial kitchen. It meets the demands of high-volume cooking while providing the reliability chefs depend on to serve high-quality dishes consistently.