Furnace runs for 8 minutes at a time.
This is driving me nuts. For the past few months, my furnace has adopted this annoying feature in that it only runs for eight minutes at a time. To make it run more, you have to turn the thermostat ...
Forum Discussion
Chris has more experience on Dino boards. BUT, from this post, it seems Dino ALSO can have operational problems. They are NOT the cure all that everybody seems to think. I would install the Suburban OEM board and test. You could also have a defective Gas valve. The furnace heats up the casing and the Gas Valve reacts to this heat and one of the 2 solenoids shuts down. But, you replaced the gas valve. When the furnace malfunctions after 8 minutes, what is the sequence that happens?
1. The flame stops first?
2. The fan and Flame stop at the same time?
3. The flame stops and you hear the Ignitor clicking?
4. Last, you have replaced ALL the parts. The problem is (my personal pet peeve), you installed an aftermarket Dino board. That makes a diagnosis difficult. From Chris's post, he seems to have seen this 8 minute problem before and ONLY with Dino boards as I have NEVER seen this type problem with OEM control boards. So, as I stated, install the OEM Suburban board and see what happens. If you replace ALL the parts with OEM and use just 1 off brand part, get rid of the off brand part and retest. Doug
1. The flame stops first?
2. The fan and Flame stop at the same time?
3. The flame stops and you hear the Ignitor clicking?
4. Last, you have replaced ALL the parts. The problem is (my personal pet peeve), you installed an aftermarket Dino board. That makes a diagnosis difficult. From Chris's post, he seems to have seen this 8 minute problem before and ONLY with Dino boards as I have NEVER seen this type problem with OEM control boards. So, as I stated, install the OEM Suburban board and see what happens. If you replace ALL the parts with OEM and use just 1 off brand part, get rid of the off brand part and retest. Doug
