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Intermitted gas furnance problem
Have Amana GUID 090 in last month have replaced flame sensor, main board, roll out, ignitor, stat batteries.
Test voltage, amperage TD, flame signal etc. ALL ok
Check and cycle unit 20+ times no failures ideal condtions and operation.
Two days ago changed stat, cycled 18 times no falure today got call out again. Customer reset power and it ran fine.
HAve metal conduit to unit for ground that goes back to box panel.
Not sure what else it can be plus its intermitted problem???