Frymaster FBRA18 Series manual Troubleshooting the Gas Valve

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6.8.1 Troubleshooting the Gas Valve

MAIN GAS SUPPLY

VALVE VERIFIED TO BE

OPEN AND EQUIPMENT GAS

VALVE IN ON POSITION.

Is there 24VAC

on gas valve main coil (PV No terminal)?

Yes

What gas is the unit configured for?

NOTE: All voltage measurements must be made within 4 seconds of unit calling for heat. If unit does not fire within 4 seconds, ignition modules will lock out and controller must be turned off then back on to reset.

Problem is with

24VAC circuit. Refer to

Troubleshooting the

24VAC Circuit.

	Natual Gas	LP (Propane)
	Natual Gas	Gas
		Gas

	Is incoming		Problem is with gas		Is incoming
	gas pressure 6-14"	No	Problem is with gas	No	gas pressure 11-14"
	W.C. (1.49-3.49		supply to fryer.		W.C. (2.74-3.49
	kPa)?				kPa)?
	Yes				Yes
	Is burner manifold		Adjust pressure to		Is burner manifold
	Is burner manifold	No	specification. If gas valve	No	Is burner manifold
	gas pressure 3.5" W.C.	No	specification. If gas valve	No	gas pressure 8.25" W.C.
	gas pressure 3.5" W.C.		will not adjust, replace gas		gas pressure 8.25" W.C.
	(0.8 kPa)?		will not adjust, replace gas		(2.5 kPa)?
	(0.8 kPa)?		valve.		(2.5 kPa)?
			valve.
	Yes				Yes
	Is gas valve vent tube	Yes	Clear obstruction.	Yes	Is gas Valve vent tube
	obstructed?		Clear obstruction.		obstructed?
	obstructed?				obstructed?
	No				No
			Problem is not with
			gas valve.

6-13

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Contents Hour Service Hotline Canada Page FBR18 & FBRA18 Series GAS Rethermalizers Table of Contents Parts List Parts Ordering and Service Information Safety InformationEquipment Description Installation, Operating, and Service PersonnelDefinitions Shipping Damage Claim Procedure What to do if your equipment arrives damagedGeneral Installation Requirements Caster/Leg Installation Incoming Gas Pressures Connecting to the Gas Supply Converting to Another Gas Type Introduction FBR18/FBRA18 Digital ControllerOperating the FBR18/FBRA18 Timers Boiling-Out the Cookpot Shutting the Rethermalizer Down Daily Checks and Services Quarterly Checks and ServicesSemi-Annual Checks and Services Clean Combustion Air BlowerCheck Burner Manifold Pressure Burner Manifold Gas Pressures Introduction Troubleshooting Guides To FBRA18 units onlyProblem Yes Has the correct setpoint Yes Replacing the Controller or Controller Wiring Harness FBR18 & FBRA18 Series GAS Rethermalizers Service Procedures Functional DescriptionController and Mechanical Timers Temperature Probe Checking the Burner Manifold Gas Pressure Cleaning the Gas Valve Vent TubeMeasuring Flame Current Replacing the Temperature Probe Replacing the Interface BoardReplacing an Ignitor Assembly Replacing an Ignition ModuleReplacing the Combustion Air Blower Replacing a Burner AssemblyReplacing the Gas Valve Troubleshooting and Problem Isolation Replacing the CookpotIgnition Failures Incoming Gas Pressures Improper Burner FunctioningPage Improper Temperature Control Troubleshooting the Gas Valve Troubleshooting the 24 VAC Circuit in FBR18 Units Unit is Connected to24 VAC Circuit in FBR18 Units Troubleshooting the 24 VAC Circuit in FBRA18 Units Is PowerIs 24VAC Present on COM No terminal of latch Relay? Harness Is J1 pin 24VAC Circuit in FBRA18 Units Troubleshooting the Temperature Probe Probe Resistance Chart Wiring Diagram for FBR18 Units 8050417DFBRA18 Units FBR18 & FBRA18 Series GAS Rethermalizers Parts List Burner System ComponentsCabinetry and Associated Components Control Box Assembly and Associated Parts, FBR18/ FBRA18 Controller and Component Box Assemblies Cooking Timer Control Panel Components Cookpot, FBR18 Cookpot, FBRA18 Gas Supply Components Plumbing Components Page Service Hotline