Author Topic: Armstrong furnace pressure switch problems  (Read 356 times)

Offline Mmtc79

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Armstrong furnace pressure switch problems
« on: October 06, 2017, 07:33:14 PM »
Just shooting this out anyone still having problems with the Armstrong furnaces with pressure switch problems or have they come up with a fix
I know most of the ones I come across don't have the excelerator outside

Offline bster352

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Re: Armstrong furnace pressure switch problems
« Reply #1 on: October 11, 2017, 09:13:53 AM »
I was told by Armstrong that it ended up being the board. The problem was the way the board processed the signal from the pressure switch. I forget the exact numbers but they "slowed down" the number of times per second the signal was checked.