Monday, December 23, 2013

Discount Armstrong Furnace Blower Control Circuit Board (# R40403-003)

Armstrong Furnace Blower Control Circuit Board
Customer Ratings: 4 stars
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I was told by the furnace guy that this mother board was toast and the replacement for labor and materials

would be $ 650. I bought this one through Amazon for $85 and installed it myself. It looks identical to the old one (12 yrs. old), with the exception of a couple tabs. I did'nt cross check myself on the wiring schematic and initially toasted a small transformer (another $30). Having corrected that though, everything worked perfect the very first time.

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The old one had problems with the solder joints. This one looks to be an update, which is an exact fit.

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