furnace kicks off after lighting - http://www.hvacmechanic.com/ Forums
Original message
| robmarsh | "furnace kicks off after lighting" , posted Sun 19 Oct 10:54:  
I have a Carrier gas furnace. Crusader. The blower turns off right before it lights then dosent kick back on after it lights. I am hearing a click in the furnace by the control board. This past summer I replaced the blower. I wired according to direction in with the motor and tech support. I am guessing that the blower is not getting a signal. any help is great. Guessing that I have a wire off somewhere or missed wired.
Went back into the attic and ran a self test. Everything test good. Here is what the furnace is doing in order
t stat is set to heat, auto fan small exhuast fans comes on 5-10 seconds later glow igniters come on 5-10 seconds later gas is on and have a blue even flame flame for about 10 seconds then everthing turns off blower motor never turns on There are a series of clicks befor everthing turns off(relays shutting down?)
[this message was edited by robmarsh on Sun 19 Oct 12:23] | | Replies:
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| ampulman | "Re(1):furnace kicks off after lighting" , posted Sun 19 Oct 16:06  
Sounds like your flame sensor needs cleaning/replacing.
AM
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