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QUESTION:I have a chronic problem with my home furnace. Too often, the pilot
light goes out. Sometimes I can relight it, but after a few weeks, it
becomes impossible to relight. If I change the thermocouple, it works
fine for a few weeks, then the problem returns. What is causing the
thermocouples to go bad?
ANSWER: One thing that I have learned ( Family owns 25 rental units) is that these
thermocouples can more often than not be recycled.
Try this next time: using a scotch brite pad, scuff the surface. Also, the
blue tip of the flame (assuming it is a standing pilot) should be pointed
at the mid section of the TC.
How old is the furnace?
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