Frymaster FBRA18 Series manual Replacing the Temperature Probe, Replacing the Interface Board

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the unit exceeds that temperature, the burner will stay on until the setpoint is reached. Check the reading when the burner has been on continuously for at least one minute.

6.6Replacing Components

6.6.1 Replacing the Controller or Controller Wiring Harness

Refer to Chapter 5, Section 5.3 for this procedure.

6.6.2 Replacing the Temperature Probe

1.Unplug the rethermalizer and drain the cookpot.

2.Remove the screws from the upper corners of the timer panel and swing the panel open from the top, allowing it to rest on its hinge tabs. Cut the probe leads off at the rear of the probe. NOTE: Once the probe leads have been cut, the probe cannot be reused. Work the Tinnerman retaining clip rearward off the probe.

3.Remove the two screws securing the probe cover to the probe block and remove the cover. Slip the failed probe out of the block from the cookpot side and replace with a new probe. Carefully remove the Tinnerman retaining clip from the replacement probe to allow the leads and short end of the probe to be inserted through the probe block from cookpot side. When the replacement probe has been inserted, work the retaining clip onto the probe until the probe is held securely in place. Reinstall the probe cover and timer panel.

4.Remove the screws from the upper corners of the control panel and swing the panel open from the top, allowing it to rest on its hinge tabs. Remove the two upper screws securing the compo- nent box to the rethermalizer. Rotate the box forward and outward to expose the 12-pin connec- tor on the rear of the interface board.

5.Unplug the 12-pin connector from the interface board. Using a pin pusher, remove the cut off pieces of wire from the connector one at a time, and insert the corresponding wire from the new probe.

6.Reattach the 12-pin connector to the interface board, rotate the component box back into posi- tion, and replace and tighten the mounting screws. Close the control panel and replace the screws in each upper corner.

6.6.3 Replacing the Interface Board

1.Unplug the rethermalizer and drain the cookpot.

2.Remove the screws from the upper corners of the control panel and swing the panel open from the top, allowing it to rest on its hinge tabs.

3.Detach the grounding wire from the controller, unplug the 15-pin connector from the interface board, and remove the control panel from the unit by lifting it up and out of the hinge slots in the control panel frame.

6-5

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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 InformationDefinitions Installation, Operating, and Service PersonnelEquipment Description 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 Measuring Flame Current Cleaning the Gas Valve Vent TubeChecking the Burner Manifold Gas Pressure Replacing the Temperature Probe Replacing the Interface BoardReplacing an Ignitor Assembly Replacing an Ignition ModuleReplacing the Gas Valve Replacing a Burner AssemblyReplacing the Combustion Air Blower 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
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