furnace kicks off after lighting - http://www.hvacmechanic.com/ Forums


Original message

robmarsh

74.131.155.99

"furnace kicks off after lighting" , posted Sun 19 Oct 10:54:user profileedit/delete messagepost reply


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:

ampulman

68.83.78.41

"Re(1):furnace kicks off after lighting" , posted Sun 19 Oct 16:06user profileedit/delete messagepost reply


Sounds like your flame sensor needs cleaning/replacing.

AM