Bradford-White Corp U4TW50T*FRN Manual De Usuario

 Page 37 

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.

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. 

Pilot and main 

feedlines 

Spark igniter/flame 

sensor wire 

Gas control

Flats of thermal

well

Gas control power 

switch 

TTW (water heater) 

power cord 

37