Hi Guys,
I'm hoping someone here can give some ideas as to what's wrong.
First off this information pertains to an Air Quest (International Comfort Prouducts Corp.) Model# NTGMO75EGA3 90 plus efficiency forced air furnace. The unit was installed new about 6 years ago and up until recently has worked perfectly. Last month it started behaving strangely. At first the draft inducer motor would come on and go off several times before completing ignition and going through a normal cycle. Later that day it got to the point where all you could hear was what sounded like the ignitor snapping. Then it quit operating all together. It was believed that the fan control board was bad. After repalcement it worked fine for a little over a month and yesterday morning it was exibiting the same symptons, However later on the ignitor issue ceased and the draft inducer motor was still cycling on and off before operating properly. Still later that day, when I returned home from work, back it was working fine! This afternoon it started the same sequence except that at one point the burner fired and stayed lit for a minute or 2 without the blower motor running, and then it shut down and starting the pulsating thumping or snapping noise, so I turned main power off and on a few times and it went back to normal operation again. Could the new control board be going bad already or is there an underlying problem contibuting to this? Thanks in advance for your time.
I'm hoping someone here can give some ideas as to what's wrong.
First off this information pertains to an Air Quest (International Comfort Prouducts Corp.) Model# NTGMO75EGA3 90 plus efficiency forced air furnace. The unit was installed new about 6 years ago and up until recently has worked perfectly. Last month it started behaving strangely. At first the draft inducer motor would come on and go off several times before completing ignition and going through a normal cycle. Later that day it got to the point where all you could hear was what sounded like the ignitor snapping. Then it quit operating all together. It was believed that the fan control board was bad. After repalcement it worked fine for a little over a month and yesterday morning it was exibiting the same symptons, However later on the ignitor issue ceased and the draft inducer motor was still cycling on and off before operating properly. Still later that day, when I returned home from work, back it was working fine! This afternoon it started the same sequence except that at one point the burner fired and stayed lit for a minute or 2 without the blower motor running, and then it shut down and starting the pulsating thumping or snapping noise, so I turned main power off and on a few times and it went back to normal operation again. Could the new control board be going bad already or is there an underlying problem contibuting to this? Thanks in advance for your time.
