Frymaster BIPH52 Series, Service Manual

Page: 14 / 90

1-7
7. 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.
1.5
Measuring Flame Current
When the burner flame is properly adjusted, it will produce a current between 2.5
μ
A and 3.5
μ
A.
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 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.
1.6 Replacing Fryer Components
1.6.1 Replacing the Controller or the Controller Wiring Harness
1. Disconnect the fryer from the electrical power supply.
2. The controller bezel is held in place by tabs at the top and bottom. Slide the bezel up to
disengage the lower tabs. Then slide the bezel down to disengage the upper tabs.
3.
Remove the top two screws in the upper corners of the control panel.
4.
Hinge the controller down. Allow it to rest on its hinge tabs to access the 15-pin connector on
the back.
5.
Disconnect the 15-pin wiring harness from the back of the controller and, if replacing the
harness, disconnect it from the interface board.
6. Use a 5/16” nut driver (P/N 802-0352) to remove the nut and green ground wire from the back of
the controller.
Flame Sensor Wire
(Right Burner)