Frymaster 1824/2424G manual Improper Burner Functioning

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24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES

1.8.2 Improper Burner Functioning

With problems in this category, the burner ignites but exhibits abnormal characteristics such as "popping", incomplete lighting of burner, fluctuating flame intensity, and flames "rolling" out of the fryer.

"Popping" indicates delayed ignition. In this condition, the main gas valve is opening but the burner is not immediately lighting. When ignition does take place, the excess gas "explodes" into flame, rather than smoothly igniting.

The primary causes of popping are:

•Incorrect or fluctuating gas pressure

•Misdirected or weak pilot flame (non-electronic ignition)

•Clogged burner orifices

•Clogged burners

•Inadequate make-up air

•Heat damage to the controller or ignition module

•An out-of-adjustment ignitor or broken ignition wire

•A defective ignition module

If popping occurs only during peak operating hours, the problem may be incorrect or fluctuating gas pressure. Verify that the incoming gas pressure (pressure to the gas valve) is in accordance with the appropriate CE or Non-CE requirements listed in the Installation and Operation manual that came with the fryer, and that the pressure remains constant throughout all hours of usage. Refer to Adjusting Burner Manifold Pressure in Section 1.4 if burner manifold pressure is suspected of being incorrect.

If popping is consistent during all hours of operation, verify that the pilot is properly positioned above the burner orifice and that the pilot pressure is correct. Correct pilot pressure is indicated by a flame 1 to 1½" long. Refer to Section 1.5 for pilot adjustment procedure.

On systems equipped with electronic ignition, verify that the ignitor is properly adjusted (electrode tip and ignitor positioned properly over middle burner).

Clogged burners and burner orifices are also likely causes of delayed ignition. Clogged burners are indicated by uneven flame or partial flame on the burner face. Clogged orifices are indicated by no flame.

Another cause of popping is an insufficient air supply or drafts that are blowing the pilot flame away from the burner. Check for "negative pressure" conditions in the kitchen area. If air is flowing into the kitchen area, more air is being exhausted than is being replenished and the burners may be starved for air.

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Contents Hour Service Hotline DEC 24G Series Flatbottom Gas FryersPage Computers Where Applicable FCC 24G Series Flatbottom Gas Fryers Table of Contents CE only Altitudes of 2000 feet or less Functional DescriptionNON-CE Altitudes of 2000 feet or less Pilot System Configuration Electronic Ignition ConfigurationControl Options Thermatron Controller Board Accessing Fryers for Servicing Safety ComponentsCleaning the Gas Valve Vent Tube if applicable Adjusting Burner Manifold Gas PressureAdjusting the Pilot Flame where applicable Calibrating the Thermatron Temperature ControllerLoosen two setscrews in dial arrows to recalibrate Remove/Replace Temperature Probe or High-Limit Thermostat Replacing Fryer ComponentsTemperature 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 Replacing the Frypot Frypot Baffle InspectionFrypot/Firebox Removal/Replacement Procedure 24G Series Flatbottom GAS Fryers Service Procedures If the Firebox Requires Replacement Troubleshooting and Problem Isolation Problems Related to the Electronic Circuits Ignition FailuresImproper Burner Functioning 24G Series Flatbottom GAS Fryers Service Procedures Improper Temperature Control Filtration Problems24G Series Flatbottom GAS Fryers Service Procedures Leakage Troubleshooting Guides Temperature Power is present atTo temperature quickly Main Burner MalfunctionsIndicator Lights Light Indication Probable Cause Corrective ActionWiring 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 Single Fryers CE-Approved 10.8 24G SeriesWiring, Standing Pilot Scfc Models 10.10 24GTI Oil Return/Filter System 24G Series Flatbottom GAS Fryers Parts List Blower Assembly and Combustion AirBurner Manifold and Related Components Component Flue Caps, Top Caps, and Related Components 2424G Notched Left End use 823-4058 for notched right end Common Cabinet Components Scfc Models Cabinetry 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 Previous Style SCF Models Cabinetry 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 Filter Unit SCF Models Caster, 2-inch Rigid use 810-2805 for 2-inch Swivel CasterFrypot, Drain, and Oil Return Components SCF Models Component Drain Valve and Components Wiring Connectors, Pin Terminals, and Power Cords Connectors 2-Pin Female 6-Pin Female 9-Pin FemaleScrews, 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
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