Problem with Goodman Furnace flaming out. After it has been off for about an hour it will flame out after it starts and runs for 5-10 min before it satisfies themo setting. Restarts and finishes cycle. Next time it will usually run thru cycle. Pipes are two inch and run 31 feet out back of condo. Will run fine after a few cycles.
This is a Gas Furnace. Goodman GMSS960603BN Model no. 96% PSC UF New. Single stage,up flow. Has 2 inch pipe that runs out the back of condo. 31 feet. Two pipes, intake air and vent pipe. Manual say can use 2 inch pipe with 4- 90 degree elbows and run 30 ft. HAD 2 TECHS that say it is pipe problem. Why will it run full cycle most of the time. Then act up after it has been off cycle for about an hour or longer. Condensation water is draining. No kinks in hoses in furnace. Flame out t(All burners stop producing flame. Since is new pressure switch and control board have not been checked. I now have intake pipe off and use house air to get heat. Getting ready to have a 3 rd tech come in and go over everything. Any suggestion to tell him, will be appreciated.
Best Answer
We had a brand new Goodman furnace in our new condo do something similar a year after we bought our brand new condo. It would flame out multiple times, and then randomly decide to start working again. I'm not knowledgeable at all regarding anything HVAC, but I tried diagnosing all the different switches/sensors and came to my own conclusion that it was the control board as everything else appeared fine.
Asked for a technician to come and check it out and bring a replacement board; They forgot/neglected to bring the board, ran the same checks as I did and a bit more, but couldn't determine the problem. I rescheduled, this time insisting more assertively to bring a replacement board; They did on the second attempt and it has worked fine ever since.
Those hardware boards seem to be quite unreliable from what I've heard. It can't hurt to ask them to bring a replacement board to see if that fixes the issue.