Gas Control Removal - Bradford White D4403S*F(BN Service Manual

Gas Control Removal

Gas Control & Thermal Well Removal From Water Heater (cont'd)
Step 4. Disconnect the pilot tube
using a 7/16" wrench and the main burner
feedline with a 3/4" wrench from the gas
control.
Step 5. Disconnect the wire harnesses and spark igniter/
flame sense wire from the gas control.
Step 6. Remove the gas control &
thermal well by rotating the flats of the Thermal Well counter
clockwise using a 1-5/16" wrench.
Gas Control Removal From Thermal Well
Following the steps below allows for the removal of the gas control from the thermal
well without removing the thermal well from the tank.
Step 1. Move the gas control power switch to the "OFF"
position.
Step 2. Unplug the water heater from the wall outlet.
Page 24
24
Pilot and main
feedlines
Gas control
Spark igniter/flame
sensor wire
Flats of thermal
well
Gas control power
switch
Damper (water
heater) power cord