Frymaster FPHD manual Troubleshooting and Problem Isolation, Ignition Failure

Page 33

HIGH EFFICIENCY 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,

2.improper burner function,

3.improper temperature control,

4.improper computer function,

5.improper filtration function,

6.frypot leakage, and

7.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.

1-28

Image 33

Contents Hour Service Hotline Includes HD63/Red Robin and Common CabinetryMAY Page Computers FCC Table of Contents Page GAS Information Altitudes of 2000 feet or less Functional DescriptionElectronic Ignition Configuration Pilot System ConfigurationInterface Boards Control OptionsThermatron Board P/N Interface Boards Indicates power from 12V transformer Test Meter Setting Pins Test ResultsThermostats Accessing Fryers for ServicingRestraints Adjusting Burner Manifold Gas Pressure Cleaning the Gas Valve Vent Tube if applicableCalibrating the Thermatron Adjusting the Pilot FlameMain Pilot Trailing PilotReplacing the Computer Replacing Fryer ComponentsReplacing the Temperature Probe Computer-equipped Fryers Replacing the Temperature Probe Computer-equipped Fryers Probe cannot be repositioned Replacing the High-limit Thermostat Installing the New Temperature ProbeLocate the high-limit probe Capillary tube cannot be repositioned Figure B Replacing Rocker SwitchesReplacing Rocker Switches Replacing the Frypot Replacing the Pilot AssemblyRemoving the joiner strip Removing gas manifold shield Removing bolts arrows securing flue to frypot Nut Valve Boot Clamp Remove the drain valve nut and attached Hardware Cutting frypot seal prior to frypot removal Lifting frypot from fryer Ignition Failure Troubleshooting and Problem IsolationImproper Burner Function Electronic CircuitsImproper Burner Function Improper Temperature Control Improper Computer Function Improper Filtration Function Frypot Leakage Improper Basket Lift Function Bell-Crank Basket Lifts Problem Troubleshooting GuidesNot possible Wiring Diagrams High Efficiency Decathlon, Thermatron with Constant PilotRight/left sides are the same Computer with Constant Pilot CM4-S Wiring Dean Oil Return Wiring Dean Oil Return Wiring, with Solenoid Probe Resistance Charts High Efficiency Decathlon HD Primary Components High Efficiency Decathlon Series GAS Fryers Parts ListDecathlon HD50 Primary Components includes Scfhd units See Orifices, SectionSee Drain Manifold Components, Section Decathlon HD50 Primary Components includes Scfhd units 823-4692 Decathlon HD60 Primary Components includes Scfhd unitsFlue Box Assembly also used on HD63 fryers Front, Flue Box Decathlon FPHD65 Primary Components Channel, Base 265 465 565 Cabinet Upper BackCabinet Lower Back Door Assembly, with Liner also used for HD63 fryers Orifices Natural OrificesPropane Orifices Accessories Control Panel Options, Joiner Strips, and AccessoriesControl Panels Joiner StripsOptional Components and Controllers HD/SCFHD50 SCFHD456 SCFHD60 BezelsInterface Boards High Efficiency Decathlon Series GAS Fryers Parts List Drain Valve Assembly, 1 1 ⁄ 2 without Microswitch Drain Valve Assembly, 1 1 ⁄ 2 with MicroswitchFlush Oil Drain Line Oil Return Manifold Components Oil Return Manifold Components Oil Return Manifold Components Oil Return and Oil Flush Components Oil Suction Assembly Microswitch Bracket Assembly, Oil ReturnSuction Manifold Assembly Oil Suction Start FittingDescription 106-7543 Filtration Components SCFHD60 and SCFHD63 Series FryersFiltration Components FPHD65 Series Fryers Basket Lift Components Basket Lift Components Trough, Holster, & Cover Components Fasteners Screws, Nuts, Bolts Service Hotline