Wednesday, December 19, 2012

What is a combustion shut off device on a water heater?

My neighbors water heater pilot light went out. went to light it, will not light. thought is was a bad thermocouple, then found paperwork that they had a combustion shut off device replaced last March. What is this and could it be the problem?
Thank you both, very informative. My neighbor is going to call the company that replace it place it in March.


What is a combustion shut off device on a water heater?

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