Frymaster FBKR18 Series, FBCR18 manual Cleaning the Gas Valve Vent Tube, Measuring Flame Current

3.Relocate the rethermalizer for service accessibility.

4.After servicing is complete, reconnect the unit to the gas supply, reattach restraining devices, and plug in the electrical power cord.

6.3Cleaning the Gas Valve Vent Tube

Refer to Semi-Annual Checks and Services in Chapter 4, Preventive Maintenance.

6.4Checking the Burner Manifold Gas Pressure

Refer to Semi-Annual Checks and Services in Chapter 4, Preventive Maintenance.

6.5Measuring Flame Current

When the burner flame is properly adjusted, it will produce a current between 3.5 ∝A and 6.5 ∝A. Flame current is measured by placing a microamp (not milliamp) meter in series with the white sensing wire on the ignitor. This is accomplished as follows:

1.Turn the unit OFF (press the button).

2.Disconnect the white flame sensor wire from one of the burner ignitor assemblies and connect it to the positive lead of the meter. Connect the negative lead of the meter to the terminal from which the sensing wire was removed.

Ignitor Wire

Flame Sensor

Wire

3.Turn the unit ON (press the button). When a cold unit is first turned on, the burner will cycle on and off repeatedly until the temperature in the cookpot reaches 180°F (82°C). When the water in 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 Computer or Computer Wiring Harness

Refer to Chapter 5, Section 5.3 for this procedure.

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