Frymaster FBRA18 Series manual Is J1 pin

Page 46

6.8.3 Troubleshooting the 24 VAC Circuit in FBRA18 Units (Continued)

C

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.

Is 24VAC

present on J1 pin 5 Yes when unit calls for

heat?

No

Is 24VAC

present on N/O Yes terminal of 12VDC

relay?

No

Probable cause is failed wiring between latch relay and 12VDC relay.

Is J1 pin 2	Yes
grounded?
No

Clean lower water level sensor and ground it.

Does

CYCLE LED light No when unit calls for

heat?

Yes

Go to

"B".

Is 24VAC

present on COM

terminal of 12VDC relay Yes when unit calls for

heat?

No

Is

12VDC present

across coil of 12VDC relay Yes when unit calls for

heat?

No

Probable cause is

failed controller wiring

harness or failed

controller.

Probable cause is failed interface board.

Probable cause is failed wiring between relay and interface board.

Probable cause is failed 12VDC relay.

6-19

Image 46

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