Frymaster 1824/2424G manual Ignition Failures, Problems Related to the Electronic Circuits

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24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES

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 Failures

Ignition failure occurs when the ignition module fails to sense a flame within the 11-second time delay period and locks out. Turn the fryer off, locate and correct 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.Problems related to the gas and/or electrical power supplies.

2.Problems related to the electronic circuits.

3.Problems related to the gas valve.

Problems Related to the Gas and/or Electrical Power Supplies

The main indicator is that an entire battery of fryers fails to light. Verify that the quick disconnect hose is properly connected, the fryer is connected to power, the main gas supply valve is open, and the circuit breaker for the fryer electrical supply is not tripped. Some fryers are equipped with a fryer reset-switch that must be reset each time the fryer is turned off.

Problems Related to 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 an Under Fryer Filter (UFF) filtration system, first 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. Often, although the valve handle appears to be in the closed position, the microswitch is still open.) If the valve is fully closed, or the fryer does not have a filtration system, refer to the troubleshooting guides in this chapter.

Problems Related to the Gas Valve

If the problem is not in the 24 VAC circuit or pilot system, it is most likely in the gas valve itself, but before replacing the gas valve, refer to the troubleshooting guides in this chapter.

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Contents 24G Series Flatbottom Gas Fryers Hour Service Hotline DECPage Computers Where Applicable FCC 24G Series Flatbottom Gas Fryers Table of Contents NON-CE Altitudes of 2000 feet or less Functional DescriptionCE only Altitudes of 2000 feet or less Electronic Ignition Configuration Pilot System ConfigurationControl Options Thermatron Controller Board Safety Components Accessing Fryers for ServicingAdjusting Burner Manifold Gas Pressure Cleaning the Gas Valve Vent Tube if applicableCalibrating the Thermatron Temperature Controller Adjusting the Pilot Flame where applicableLoosen two setscrews in dial arrows to recalibrate Replacing Fryer Components Remove/Replace Temperature Probe or High-Limit ThermostatTemperature probe High-limit Removing/Replacing Rocker Switches 24G Series Flatbottom GAS Fryers Service Procedures Removing/Replacing Blower Assembly or Air Prover Switch Replacing air prover switch Frypot Baffle Inspection Replacing the FrypotFrypot/Firebox Removal/Replacement Procedure 24G Series Flatbottom GAS Fryers Service Procedures If the Firebox Requires Replacement Troubleshooting and Problem Isolation Ignition Failures Problems Related to the Electronic CircuitsImproper Burner Functioning 24G Series Flatbottom GAS Fryers Service Procedures Filtration Problems Improper Temperature Control24G Series Flatbottom GAS Fryers Service Procedures Leakage Troubleshooting Guides To temperature quickly Power is present atTemperature Main Burner MalfunctionsLight Indication Probable Cause Corrective Action Indicator LightsWiring Diagrams 10.2 24G Series Single Fryers, Non-CE with Boil-Out Switch 24G Series Flatbottom GAS Fryers Service Procedures 24G Series Flatbottom GAS Fryers Service Procedures 24G Series Flatbottom GAS Fryers Service Procedures 24G Series Flatbottom GAS Fryers Service Procedures 24G Series Flatbottom GAS Fryers Service Procedures 10.8 24G Series Single Fryers CE-ApprovedWiring, Standing Pilot Scfc Models 10.10 24GTI Oil Return/Filter System Blower Assembly and Combustion Air 24G Series Flatbottom GAS Fryers Parts ListBurner Manifold and Related Components Component Flue Caps, Top Caps, and Related Components 2424G Notched Left End use 823-4058 for notched right end Cabinetry Scfc Models Common Cabinet Components Scfc ModelsNot illustrated Door Assemblies and Component Parts Scfc Models Control Panels, Wireways, and Related Components Scfc Models Component Oil Return and Suction Manifolds Scfc Models Component Filter Unit Scfc Models Frypot, Drain, and Oil Return Components Scfc Models 24G Series Flatbottom GAS Fryers Parts List Cabinetry SCF Models Previous Style SCF ModelsBack, Single Fryer Cabinet Door Assemblies and Component Parts SCF Models Control Panels, Wireways, and Related Components SCF Models Not illustrated Oil Return and Suction Manifolds SCF Models Component 24G Series Flatbottom GAS Fryers Parts List Caster, 2-inch Rigid use 810-2805 for 2-inch Swivel Caster Filter Unit SCF ModelsFrypot, Drain, and Oil Return Components SCF Models Component Drain Valve and Components Connectors 2-Pin Female 6-Pin Female 9-Pin Female Wiring Connectors, Pin Terminals, and Power CordsScrews, Nuts, and Fasteners Appendix ND90 Built-In Filter System Components Line Parts Pump, 5GPM use 810-2098 for 8GPM Pump Seal, Shaft O-Ring Service Hotline