6)
Strip the insulation from the new probe leads and attach the two ¼” insulated connectors
(provided) to the wires. Be sure to crimp the connector properly to hold the wires tight
without damaging the wires.
7)
Remove the temperature control knob from the temperature control shaft and put aside.
Note that there are two screws on the knob that need to be loosened.
8)
Remove the temperature control rheostat from the front panel.
9)
Cut the tie wraps along the wire harness to free the temperature control wires from the
harness.
Be careful not to cut any wires or insulation on wires when cutting the tie
wraps.
10)
Remove the two #6 mounting screws and washers from the new FAST G6 temperature
control board and set aside. Insert the new controller into the front control panel from
behind the panel so the shaft comes through the hole in the panel. Position the board so
the six (6) terminals on the board face the outer right side of the oven. The two probe
connectors should be toward the oven chamber. Fasten the control board bracket to the
control panel with the two screws and washers removed previously.
11)
Carefully install the new temperature overlay on the front panel.
12)
Remove all wire connections from the existing temperature control board.
13)
Remove the two screws that hold the old temperature controller to the oven and remove
the temperature controller. It may be necessary to cut more tie wraps to remove the
controller.
Be careful not to cut any wires or insulation on wires when cutting the tie
wraps.
REFER TO WIRING DIAGRAM U4203QA (PAGE 4) FOR THE FOLLOWING CONNECTIONS
14)
Connect the black wire (#2) from the bottom left of the 3 pole connector to A1 on the
contactor block.
15)
Place a brass “piggyback” connector (supplied) onto terminals T7, T8, and T10.
16)
Attach a jumper wire (supplied) from terminal T10 to terminal T6 on the temperature control
board. Attach the wire from the rotary switch terminal P1 to terminal T10 on the control
board.
17)
Attach wire #9 from T8 on the control board to the top left connector on the terminal block.
Attach one wire from the heat indicator lamp to the other connection on T8.
18)
Attach the other wire from the heat indicator lamp to T7 on the control board. Connect the
wire from A2 on the contactor to the other terminal on T7.
19)
Remove the unused wire from the old control board to the door switch. Do not use this wire.
20)
Connect the two leads from the RTD probe to the two terminals identified as “Probe” on the
new control board. It does not matter which lead is connected to which terminal.
2