Bradford White Water Heater M4TW60T6FSX

Burner Inspection and Air Shutter Adjustment

Check for proper operation of the pilot and main burner

Ensure no debris is accumulating around the pilot and main burner

Verify the stability of the pilot flame

Check if the water heater vent is within the allowable vent length

Confirm gas pressure is within specification

Ensure pilot flame fully engulfs spark/flame sensor

Verify main burner lights smoothly from pilot

Check main burner flame is blue with minimal yellow tips

Verify 120VAC and proper polarity at wall outlet.

With unit plugged in and control power switch in the “ON” position, verify LED status.

Using a volt meter set to volts AC, is there 120VAC across terminals shown in photo 29?

Is there 120VAC across terminals shown in photo 30?

Is there 120VAC across black & white wires as shown in photo 32?

Check for 120VAC between black & white wires.

Verify error code as listed on page 13.

Position gas control power switch to 'ON' position and adjust control to call for heat.

Remove the three screws from control access cover on blower assembly and remove cover.

Does blower energize within 2 minutes?

If blower does not energize within 2 minutes, does it run for 30 seconds and shut down?

Is there 115 VAC at wall outlet?

Repair or replace power cord if damaged.

Blower Temperature Switch Replacement

Position gas control power switch to the “OFF” position and unplug heater from wall outlet.

Remove the three screws from the control access cover on blower and remove cover.

Locate blower temperature switch.

Disconnect red and yellow wire leads from switch.

Snip the retaining lug from the blower housing to allow removal of temperature switch.

Remove switch from blower housing.

Install new switch and ensure it is properly seated in mounting area.

Reconnect red and yellow wires to new switch.

Pilot Inspection, Testing and Replacement

Position gas control power switch to the “OFF” position and unplug heater from wall outlet.

Turn off gas supply to water heater.

Remove outer jacket door and slide inner door open from left to right.

Disconnect pilot tube nut (7/16 wrench) and feedline nut (¾ wrench) from gas control.

Disconnect igniter/flame sense wire from gas control.

Remove burner assembly from combustion chamber.

Remove pilot assembly from feedline (¼" nut driver).

Visually inspect igniter/flame sense wire for damage. Replace pilot if damage is found.