Originally Posted by kok328
Paul, since the furnace was installed horizontally, could it be that the flame is not hitting the flame sensor enough to keep the system running?
In most of these furnaces today, they have what i call small jet burners.
If they have the right gas pressure, they will work fine in different positions.
Running 8 to 10 min. and then cutting out, sound more like water build up and when the inducer turns off it drains so it can come back on. Another thing is, if he is not moving enough air through the furnace, it could be stopping on limit
switch. The next things i want him to do is check the air temp. on the return side and on out going side to see if it is over heating.
Another thing is to watch the burner and when it turn off turn the stat down and see if you get a code. Paul