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temp. control problem

1K views 10 replies 3 participants last post by  beenthere 
#1 ·
furnace seems to drop in temp. when I reset temp. rises back to setting
I have a concord furnace, it is about 6 years old
 
#9 ·
Honeywell makes more then 500 different thermostats. So what model number is yours.

Could be a pressure switch, or flame sensor.

Now if its a model, for get it. Your concord probably isn't that model.
 
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