Bradford White D-4-504S6FSX - Manual (Page 25)

25
Maintenance continued-
5. Annually remove the inner door and main burner assembly to clean
orifices and related parts of any dirt or other foreign material. Inspect the
burner ports for obstructions or debris and clean with a wire brush as
needed. Wire brush and/or vacuum clean the combustion chamber as
needed to remove scale deposits and debris. NOTE: It is imperative for
proper operation of the water heater that the inner door be replaced in the
original location, making certain the resettable thermal switch is properly
connected to the gas control wire leads provided.
original equipment.
incident.
Do not block or in any way restrict jacket air inlet slots
located at the bottom front of the water heater.
Do not operate water heater with jumpered, altered,
loosely tightened or absent controls and/or components.
Do not operate water heater with replacement controls
and/or components which are not exact duplicates of
Thoroughly inspect and replace, (as needed) burner inner
door gasket and/or sight window gasket any time burner
inner door is removed or disturbed.
Replace water heater if involved in flammable vapor
This water heater is equipped with a flammable vapor
water heater control will shut down the water heater and
display a code of 7 flashes and then a 3 second pause.
If a 7 flash error code is present, check to see if flammable
vapor is present in the area. If flammable vapor is
present or suspected in the area, immediately leave the
area and contact a service professional.
If you are certain there is no flammable vapor present,
check the flammable vapor sensor to make certain
it has not become disconnected from the control.
See the instruction manual for troubleshooting.
sensor. If the sensor is exposed to flammable vapor, the
Do not try to light any appliance.
Do not touch any electric switch; do not use any
phone in your building.