Frymaster FPD, SCFD manual Troubleshooting and Problem Isolation, Ignition Failure

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DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1.8 Troubleshooting and Problem Isolation

Because it is not feasible to include every issue that might occur, this section is intended to provide technicians with a general knowledge of the broad problem categories associated with this equipment and the probable causes of each. With this knowledge, the technician should be able to isolate and correct any problem encountered.

You are likely to encounter problems in these broad categories:

1.

ignition failure,

5.

improper burner function,

2.

improper temperature control,

6.

improper computer function,

3.

improper filtration function,

7.

frypot leakage, and

4.

basket lift malfunction.

 

 

The probable causes of each category are discussed in the following sections. Troubleshooting guides are included in Section 1.9 to assist in identifying some of the more common problems.

1.8.1 Ignition Failure

Ignition failure occurs when the ignition module fails to sense a flame within the 60-second time delay period and locks out. Turn the fryer off, locate and fix the problem, then turn fryer back on to clear the module lock.

There are three primary reasons for ignition failure, listed in order of probability:

1.The gas and electrical power supplies,

2.The electronic circuits, or

3.The gas valve.

The Gas and Electrical Power Supplies

The main indicators that the gas or electrical power supply is the cause of ignition failure are as follows: an entire battery of fryers fails to light, and/or there are no indicator lights illuminated on the fryer experiencing ignition failure. Verify that the quick disconnect hose is properly connected, the fryer is plugged in, the main gas supply valve is open, and the circuit breaker for the fryer electrical supply is not tripped.

The Electronic Circuits

If gas and electrical power are supplied to the fryer, the next most likely cause of ignition failure is a problem in the 24 VAC circuit of fryers equipped with electronic ignition systems, or in the pilot system for those without electronic ignition. If the fryer is equipped with a SUFF/UFF filtration system, verify that the drain valve is fully closed. (The valve is equipped with a microswitch that must be closed for power to reach the gas valve. The valve handle can appear to be closed when the microswitch is open.) If the valve is fully closed, or the fryer does not have a filtration system, refer to the troubleshooting guides in this chapter.

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Contents Hour Service Hotline CFD, SCFD, FPDPage Computers FCC Table of Contents Finding Your WAY around the Dean Decathlon Functional Description NON-CE Altitudes of 2000 feet or lessCE only Altitudes of 2000 feet or less Pilot System Configuration Electronic Ignition ConfigurationControl Options Interface Boards Interface Board P/N Current Flow Through Interface Accessing Fryers for Servicing ThermostatsRestraints Cleaning the Gas Valve Vent Tube if applicable Adjusting Burner Manifold Gas PressureAdjusting the Pilot Flame Calibrating the ThermatronMain Pilot Trailing PilotBackup Operating Thermostat Optional Replacing Fryer Components Replacing the ComputerReplacing the Backup Thermostat if applicable Replacing the Temperature Probe Computer-equipped Fryers DrainsRemove burners to gain access to temperature probe Installing the New Temperature Probe Replacing the High-limit ThermostatRemove screws arrows securing high-limit to fryer Decathlon Series GAS Fryers Service Procedures Replacing Rocker Switches Switch GuardDecathlon Series GAS Fryers Service Procedures Replacing the Pilot Assembly Replacing the FrypotRemoving capping strip Removing flue cap Holding backup while unscrewing flare nut on oil-return line 19. a .5 drains Loosening burner bolts prior to burner removal Decathlon Series GAS Fryers Service Procedures Decathlon Series GAS Fryers Service Procedures Decathlon Series GAS Fryers Service Procedures Cutting frypot seal prior to frypot removal Troubleshooting and Problem Isolation Ignition FailureGas Valve Improper Burner FunctionDecathlon Series GAS Fryers Service Procedures Improper Temperature Control Improper Computer FunctionImproper Filtration Function Frypot Leakage Improper Basket Lift Function Bell-Crank Basket Lifts Improper Basket Lift Function Modular Basket Lifts Troubleshooting Guides Improper Basket Lift FunctionNot possible Wiring Diagrams Decathlon, Electronic Ignition, Current ConfigurationDecathlon, Dual Vat Thermatron Decathlon Series GAS Fryers Service Procedures Transformer Box Decathlon Interface Board Dean Oil Return Wiring OIL Return Micro Switch Filtration and Basket Lifts PBIOil Return, Left-hand, Normally Open Float Switch Basket Lift, with Timer CM4-S with Constant Pilot Chili’s Wiring Diagram Chili’s Wiring with SCF Filtration Decathlon Series GAS Fryers Parts List Decathlon Primary ComponentsDecathlon Series GAS Fryers Parts List Decathlon D20 Primary ComponentsDecathlon 20 Primary Components Decathlon D50 Primary Components826-1871 Decathlon D50 Primary Components 211-2787 Decathlon D60 Primary Components 826-2229Decathlon D60 Primary Components 106-1703SP Decathlon FPD65 Primary Components 823-3948SP212-4570 Decathlon D80 Primary Components 823-3494SPSee Optional Components, Section Decathlon D80 Primary Components Control Panel Options, Joiner Strips, and Accessories Control PanelsOptional Components and Controllers 16 17See Control Panel Options, Section Not illustrated Transformers & Component Boxes Multi-batteried Decathlons Part 823-3242To Drain 823-3221 Drain Valve ComponentsDecathlon Series GAS Fryers Parts List Flush Oil Drain Line Decathlon Series GAS Fryers Parts List Oil Return Manifold Components SCFD, CFD, & FPD65 Models ComponentOil Return and Oil Flush Components Oil Return and Oil Flush Components D & FPD65 ModelsOil Return and Oil Flush Components D & FPD65 Models Oil Suction Start Fitting2122 Microswitch Bracket Assembly, Oil Return Decathlon Series GAS Fryers Parts List UFF Filtration Components SCFD50 Series Fryers DescriptionUFF Filtration Components D60 and D80 Series Fryers UFF Filtration Components SCFD60 and FPD65 Series Fryers 106-1220SP Filter Pan ScfdUFF Filtration Components SCFD80 Series Fryers 823-3796 Suff Filtration Components CFD50 Series Fryers Suff Filtration Components D60 and D80 Series Fryers 823-3774Suff Filtration Components CFD60 and CFD80 Series Fryers 823-5420…2.10 Basket Lift Components D50, D60, and D80 Models Basket Lift Components D50, D60, and D80 Series Fryers Decathlon Series GAS Fryers Parts List Service Hotline
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