Bradford White Water Heater D65T3703N

D24-VI Anode Removal and Inspection

Unplug the water heater from its electrical supply and shut off the water supply.

Open a nearby hot water faucet to relieve tank pressure.

Connect a hose to the drain valve, route it to an open drain, and drain at least 5 gallons before closing the valve and disconnecting the hose.

Disconnect the venting and remove the draft diverter.

Disconnect the flue damper from the wire harness and remove it.

If required, disconnect the top plumbing connection.

Remove the screws holding the jacket head and remove it, using a screwdriver to pry underneath if necessary.

Remove the insulation, and the collector cover if necessary, to access the anode rods.

D24-V Flue Baffle Removal, Inspection

Unplug the water heater from its electrical supply.

Disconnect the venting from the draft diverter and remove the draft diverter.

Disconnect the flue damper from the wire harness and remove it from the top of the water heater.

If required, shut off the water supply and disconnect the top plumbing connection.

Remove the screws holding the jacket head and remove the jacket head, using a screwdriver to pry underneath if necessary.

Remove the insulation to expose the collector cover.

Remove the collector cover screws, chiseling away foam if needed to access them.

Remove the collector cover using a pipe wrench.

D24-I Thermostat Circuit Testing

Unplug or disconnect electrical power to the water heater

Check continuity of the wire harness to the affected sensor

Measure resistance of the wire harness

Is the harness resistance close to 0 ohms?

Check sensor resistance against the sensor resistance table

Is the sensor resistance close to the expected value for the measured water temperature?

Restore power and run the heater through a full heating cycle

D24-IV Main Burner & Pilot Removal and Inspection

WARNING — Heater components can be hot during this procedure; take precautions to avoid injury.

Unplug the water heater from its electrical supply.

Turn off the gas supply and rotate the gas valve control knob to OFF.

Disconnect the gas supply line and the gas valve wire leads.

Disconnect the white flame-sense wire and orange ignition wire from the control board.

Remove the two burner rack mounting screws and slide the burner rack out of the heater.

To reinstall, reverse the removal steps, then check for gas leaks and verify proper operation.

Use caution due to 120-volt exposure

Avoid damaging connectors or pins

Reset the control by holding the Lockout Reset button for 3 seconds

Did the board start the ignition sequence and spark?