Damper Replacement

Pilot Inspection, Testing and Replacement (cont’d)

Step 14. Visually inspect the pilot tubing for kinks or cracks. If damage is found, replace the pilot assembly.

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 necessary.

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

Step 17. To resume operation, follow the instructions located on the water heater lighting instruction label. Or, use the lighting instructions located in the water heater installation and operating manual.

Damper Removal & Installation

Step 1. Move the gas control power switch to the “OFF” position.

Gas control power

switch

Step 2. Unplug the water heater from the wall outlet.

Damper (water

heater) power cord

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Bradford-White Corp D4403S*F(BN, D4504S*F(BN, SX) service manual Damper Replacement, Damper Removal & Installation

SX), D4504S*F(BN, D4403S*F(BN specifications

Bradford-White Corp has long been a pioneering name in the water heating industry, and their D4403S*F(BN, D4504S*F(BN, and SX models represent the company’s commitment to delivering high-quality, efficient solutions for residential and commercial applications. These water heaters are designed with various user needs in mind, ensuring that homeowners and businesses can enjoy a reliable hot water supply whenever needed.

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