Bradford-White Corp MI30T*F

PILOT/ELECTRODE ASSEMBLY INSPECTION,

CLEANING AND REPLACEMENT

Step 1. Turn off gas supply to water heater. Rotate knob

of gas control/gas valve

to “OFF” position.

Step 2. Remove outer j acket door.

Step 3. Remove right side of inner door per

SERVICE PROCEDURE RG-I, steps

3a through 3c.

Step 4 Disconnect thermocouple/thermopile, pilottube,

and feedline from gas control/gas valve.

NOTE: Feedline nut for natural gas control

uses right hand threads, LP control uses left hand thread.

Step 5 Disconnect piezo ignition wire from piezo igniter.

Step 6. Remove burner assemb ly from combustion chamber.

Step 7. Remove pilot/ electrode assembly fro m feedline

Step 8. Inspect pilot for the fo llowing:

a) Primary air openings for blockage. Must be free from any

debris (dirt, lint, etc).

b) Kinksor cracks in the pilot tube. If found,

the pilot must be replaced.

Step 9. Inspect pilot orifice:

a)Remove ½" nut from bottom of pilot assembly.

b) Remove pilot tube and pilo t orifice.

c)Inspect pilot orifice for blockage, must be cleaned or replaced.

(Honeywell pilot orifice not replaceable, replace pilot assembly)

Step 10. Install pilot/electrode assembly to feedline, secure with screw from step 7.

Step 11. Re-Install burner assembly into combustion chamber, connect feedline,

pilot tube and thermocouple/ thermopile to gas conrol/ga s valve.

Step 12. Install inner door per SERVICE PROCEDURE RG-I, step 4through 13.

Step 13. To resume operation follow the instructions located on the lighting instruction label or the lighting instructions

located in the installati on and operation manu al.

Primary Air

Opening

The Bradford White

DEFENDER

Safety System®

For White Rodgers Contro l,

depress knob slightly and rotate

clockwise to the “OFF” pos ition.

For Robertshaw Control, rotate

knob clockwise to the “OFF”

position.

Pilot Orifice

Feedline Nut

SERVICE PROCEDURE RG-III

Pilot Assembly Inspection, Cleaning

and Replacement

For Honeywell Control, rotate

knob counter-clockwise t o the

“OFF” position.

Removal of thermopile from

Honeywell pilot assembly is not

recommended, but can be

achieved by viewing the pilot

assembly from the top and

pressing the thermopile towards

the right while pulling to remove.