Whirlpool 211462, BFG1F5050T4NOV, BFG1H4040S3NOV, 4220, 216071 Pilot Light Troubleshooting Flowchart

PILOT LIGHT TROUBLESHOOTING FLOWCHART

Does pilot light go out when button is released?

YES

Has the thermal switch tripped?

YES

NO

NO

Check Draft. (See Checking the

Draft section of this manual.)

Are the wires from the gas
						Secure connections
control valve/thermostat firmly				NO
						and attempt a relight.
connected to the switch?
		YES
	Are the wires damaged				Is the thermocouple
			NO
								NO
	and/or frayed?				connection loose?
		YES					YES

Tighten the connection

Test the thermocouple using the following procedure: Disconnect the thermocouple from the gas control valve/thermostat. Using a multimeter with alligator clip leads, attach the red lead to the body (copper part) of the thermocouple. Attach the black lead to the end (silver part) of the thermocouple that connects to the gas control valve/ thermostat. Follow the instruction to light the pilot and watch the voltage readings on the multimeter. After 45 seconds the meter should read 12 millivolts DC or more.

Check for insufficient combustion air.

Replace the gas control valve/thermostat.

YESDoes the thermocouple pass the test? NO Replace the thermocouple.

Are there openings for make-up air to enter the room?

YES

NO

Install correct size make-up air openings per the Combustion Air Supply and Ventilation section in this manual.

Are the openings of sufficient size?

See Combustion Air Supply and Ventilation section in this manual for requirements.

YES

NO

Correct size of openings to allow sufficient air.

NO

Is there a furnace/air handler in the same room as the water heater?

YES

Does the return air duct for the furnace/air handler draw its air from a separate location than the water heater? See the Location Requirements section and the Combustion Air Supply section.

YES

NO

Contact a local Heating, Ventilation, Air- Conditioning & Refrigeration authorized service provider.

Is there proper drafting at the
drafthood? See Checking the
		NO
Draft section in this manual.
	YES
Is the flame-trap free from
debris due to excessive lint,
		NO
dirt, dust or oil?
	YES

Check the vent system for restrictions/obstructions and check the vent termination height. Refer to the Installation Instructions section of this manual for specific requirements.

Refer to the Use & Care Guide section of this manual for information on cleaning the flame-trap.

WARNING
I	O
	N

Check the water heater for a Flammable Vapor (FV) event. Note: it may be necessary to remove the manifold door assembly to visually inspect the water heater. Reference the Maintenance of your Water Heater section of this manual for removal instructions.

						Does the flame-
			Is the pilot tube			trap show signs
Is the igniter wire insulation burnt or
		NO	damaged?		NO
show signs of discoloration?						of discoloration
	YES					and/or debris?
				YES

YES

Shut-off the gas supply to the water heater at the manual gas shut-off valve, then contact Customer Service at: 1-877-817-6750.

N

Thermal

Switch

26