we have a 16yr old trane heater that was working when we bought our home in july of this yr.when the electricity was turned back on in our name the unit no longer would stay lit.we changed the thermocoupler
and it will not stay lit
A pilot may not light for many reasons including a blocked chimney, an automatic damper that will not open, a faulty pilot tube, blocked gas line, and more.
Should be checked by a qualified heating technician.
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