Issue with Honeywell board ST9120C4057
Anyone having issues with this board in an ICP furnace??
Fan NOT coming on after 30-60 secs on a call for heat.....
(blower does come on after 2 mins by main limit opening)
Replaced the board, and even with the new one, still no 115 to neutral & heat tap! WTF?!
Can't be a bad board (heat fan relay) out of the box, can it??
Played w/ the dip switch settings... no blower, until limit opens.. Grrrrrrr!
T-stat wires are off the board, Just R & W jumped out..
I'm just going to put in a separate time delay relay & wire it up to the blower on a call for heat either 24v C+W or make & break continuity R+W, but still WTF?!!!!!!!
Dare I try another board?????????????
I think you already answered your own question.
Originally Posted by yo-el
Originally Posted by the dangling wrangler
Normally I'd post: >>Haha..
But trust me, I'm NOT laughing on this one...! uggggggggg
What happens when R an G jumped out?
Blower runs (as normal call for fan is simulated..)
Originally Posted by bzzline
My need some adult supervision or good directions for the board