Whirlpool UG2F4040T3NV EST, 285258, 285256, 285253, 285255, 285257 Pilot Light Troubleshooting Chart

PILOT LIGHT TROUBLESHOOTING CHART

Section A: Pilot light will not light.

					Check the manual gas shut-off valve to
Is the gas turned on?		NO			see if it is in the open position, if it is open
					then contact the gas utility company.
	YES
						While repeatedly depressing the igniter button,
Have you bled all the air						hold down the reset button until the pilot is lit and
from the pilot tube and			NO			maintains a stable flame, then slowly release the
gas supply line?						reset button.
	YES
Is the igniter producing a							Follow the Testing the Igniter System
				NO
spark?							instructions in this manual.
	YES
							Follow the Replacing the Pilot Assembly
Is the pilot tube and/or orifice							instructions found in this manual to access
					NO
free from dirt and debris?							pilot tube and orifice. Clean as needed and
							reinstall pilot tube and orifice.*
	YES
Is the pilot free from dirt and						Follow the Cleaning the Pilot Assembly
			NO
debris?						instructions found in this manual.*
	YES
Is the pilot protected from cold							Eliminate any drafts. See the
drafts that could prevent it							“Site Location” instructions found
					NO
from lighting.							in this manual.
	YES
Remove the burner door assembly. Is
the flame-trap free from dirt or debris?									Clean the flame-trap
See “Removing the Burner Door									with a soft bristle brush
								NO
Assembly” section of the manual for									or vacuum cleaner.
removal instructions.*
	YES
Check the water heater for a Flammable Vapor (FV) event.

If the flame-trap show signs of discoloration, 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.

Section B: Pilot light will not remain lit or repeatedly goes out.

Is the thermocouple securely			Make sure the thermocouple is securely
connected to the gas control		NO	connected. Finger tighten then give a
valve/thermostat?			additional 1/2 turn with a wrench.
	YES

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.*

								Is the thermocouple fully
Does the thermocouple pass the test?							NO	seated in the pilot bracket?
	YES							YES			NO
										Push the thermocouple
										forward until it is fully seated in
			Replace the thermocouple.
										the pilot bracket and retest.*
							Follow the Replacing the Pilot Assembly
Is the pilot tube and/or orifice							instructions found in this manual to access
					NO
free from dirt and debris?							pilot tube and orifice. Clean as needed and
							reinstall pilot tube and orifice.*
	YES
								Follow the Cleaning the Pilot Assembly
Is the pilot free from dirt and debris?							NO	instructions found in this manual.*
	YES
Check for insufficient combustion air.
						Install correct size make-up air openings per the
Are there openings for
make-up air to enter the				NO		Combustion Air Supply and Ventilation section in
room?						this manual.
	YES
Are the openings of sufficient size?											Correct size of openings to
See Combustion Air Supply and Ventilation									NO		allow sufficient air.
section in this manual for requirements.
		YES

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

Is there proper drafting at the

draft hood? See Checking the NO Draft section in this manual.

YES

	Contact a local Heating,
	Ventilation, Air-Conditioning
NO
	& Refrigeration authorized
	service provider.

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.

Remove the burner door
assembly. Is the flame-trap and			Refer to the Use & Care Guide section
			of this manual for information on
burner free from debris due to		NO
			cleaning the flame-trap and burner.
excessive lint, dirt, dust or oil?
	YES

Does the flame-trap show signs of discoloration. NO

YES

Replace the gas control

Shut-off the gas supply to the water heater at valve/thermostat.* the manual gas shut-off valve, then contact

Customer Service at: 1-877-817-6750.

* This procedure requires the removal of water heater components.

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