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Pilot will not light in my Kenmore Model 153.336464 Water Heater.

The thermocouple was replaced a couple of months ago, now the pilot will not light. Prior to this the pilot light was very weak, could barely see it. I've cleaned the air vents, not dirty, and checked the small gas line going from the gas valve to the pilot and it's also clean. Could it be the a faulty gas valve unit, and is it hard to replace? Any info would be appreciated, thanks.

Kenmore , Building Supplies
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3 Answers from these members:
Joseph Perez
I'm sorry to hear that you are having some difficulties with your water heater. I did some research for you at and found an expert answer to a similar question that may help until your expert can respond to your specific question. The link is attached below. If you do decide to schedule service and have a qualified technician help you, I have also attached a link to I hope these links provided assist you.
by Joseph Perez Earned 62,642 community points in Kenmore
October 12th, 2011
Answered in 8 minutes
0 votes
Manage My Life
My igniter is working, getting a spark, pilot is not lighting. Could it be the gas control valve is faulty? Other gas appliances in home are working, so I know there's no problem with gas getting to the water heater. Looks like gas is not getting from the gas control valve to the pilot.
by Manage My Life
October 12th, 2011
Answered in 50 minutes
0 votes
scott d
Thank you for your question. I know it can be very frustrating when the hot water heater fails. Based on the information listed, this appears to be either a defective valve or low gas pressure. The most likely problem will be with the gas valve. Replacing the valve is not difficult but the tank will need to be drained before the gas valve is removed. To drain the tank, first turn the water supply valve off and also turn the supply gas valve off to the water heater. Now, connect a water hose to the drain valve and open the valve. Also open some hot water faucets and also the pressure relief valve. This will help the tank drain faster. I hope this helps you. If you would like more assistance, reply to this thread and I will be glad to assist you further.
by scott d Earned 109,309 community points in Kenmore
October 14th, 2011
0 votes
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