Bradford-White Corp U1TW50S*FRN Manual De Usuario

 Page 25 

Step 15. 

Inspect the pilot tubing and pilot orifice for blockages: 

a) Remove ferrule nut from the bottom of 
the pilot assembly using a 7/16" wrench. 

b) Remove the pilot tube and pilot orifice. 

c) Inspect the pilot tubing and pilot orifice 
for blockages.  Clean or replace, as neces-
sary.

Step 16.  Reassemble the pilot assembly and install it on the main 
burner.  Reinstall the burner assembly into the combustion chamber. Re-
store the gas supply and check for gas leaks. 

Step 17. 

To resume operation, follow the instructions located on the wa-

ter heater lighting instruction label.  Or, use the lighting instructions located 
in the water heater installation and operating manual.  

Step 1. 

Move the gas control power switch to the “OFF” position. 

Step 2. 

Remove the three screws (Phillips screw driver) from the con-

trol access cover on  the blower assembly and remove 
cover (see photo 1). 

Step 3. 

Carefully remove pres-

sure switch from blower housing (see photo 2).

Gas control power 

switch 

115 volt potential exposure. Use caution making voltage checks to avoid 

personal injury.

1

2

Pressure Switch 

25