Our water heater has started behaving strangely. The steps are such:
1 - There's no hot water.
2 - I light the pilot again and the burner comes on.
3 - After some length of time - it could be as little as two minutes or as
long as several hours - the flame goes out. When I sit out there and monitor
it, I hear a soft "clunk" sound when the burner and pilot go out at the same
What could cause this? The gas company says it's not air in the line - and
that's the extent of their service side of the business.
Pilot flame size or thermocouple.
Make sure all the fittings are tight. Most of time there is a
provision for adjusting pilot flame size on the main valve. If
thermocouple is bad, you can replace it easy. That sound may be from
main valve dropping out.
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