Hi, I have a York furnace giving me 4 red flashes. It was built near 2005. Not getting any heat. I can see the flame ignite after I cycle power but come down an hour or so later, flame is gone and 4 red flashes. Ideas?
EDIT: Was 7 red flashes. Cleaned the flame sensor and now is 4 red flashes. Thoughts on the 4 red flashes?
EDIT: Was 7 red flashes. Cleaned the flame sensor and now is 4 red flashes. Thoughts on the 4 red flashes?
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