Measuring Flame Current; Replacing Fryer Components; Replacing The Controller Or The Controller Wiring Harness - Frymaster BIH52 Series Service Manual

5. To adjust the burner gas pressure, remove the cap from the gas valve regulator and adjust to the
correct pressure.
Non-CE
Valve
6. Place the fryer power switch (and the gas valve in non-CE fryers) in the OFF position. Remove
the fitting from the pressure tap hole and reinstall the pressure tap plug.
3.5

Measuring Flame Current

When the burner flame is properly adjusted, it will produce a current between 2.5 µA and 3.5 µA.
Flame current is measured by placing a microamp (not milliamp) meter in series with the sensing
wire on the ignitor. This is accomplished as follows:
1. Place the fryer power switch in the OFF position.
2. Disconnect the white sensing wire from one of the burner ignitors 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.
3. Place the fryer power switch in the ON position to light the burners. After the frypot temperature
reaches 200°F (93°C), wait at least one minute before checking the reading. NOTE: The closer
the unit is to normal operating temperature, the more accurate the reading will be.
3.6

Replacing Fryer Components

3.6.1 Replacing the Controller or the Controller Wiring Harness

1. Disconnect the fryer from the electrical supply.
2. Remove the two screws in the upper corners of the control panel and swing the panel open from
the top, allowing it to rest on its hinge tabs.
3. Disconnect the wiring harness from the back of the controller and, if replacing the harness, dis-
connect it from the interface board.
4. Disconnect the ground wire from the controller, and remove the controller by lifting it from the
hinge slots in the control panel frame.
5. Reverse the procedure to install a new controller or wiring harness.
Earlier Model CE Valve
GAS VALVE REGULATOR CAP
3-8
Later Model
CE Valve