i have a coleman evcon m.h. furnace. model dgat070bdc. it has an ignition control module. the ignitor glows red, the main burner comes on, then shuts down. the blower does not come on. sometimes if i turn it off and wait 10 minutes or so, the blower does come on. i have replaced the thermostat and i...

actually, it is another city. i don't have model #'s. it begins with mgdat, i think.
thanks

i have a furnace about 10 years old. it recently started to "act up". sometimes the burner won't come on. sometimes it does, and goes out in about a minute, and on and off a few times, never heating up enough to kick the blower on. sometimes runs fine. when it acts up, sometimes turning it...