All ActivityMost RecentMost LikesSolutionsRe: Suburban Furnace Problems enblethen wrote: There may not be enough do to higher resistance in the circuit. Verify the ground is connected to the furnace. Make sure it is clean and tight. See if the ground is connected to the same location as the valve ground. Add a jumper if they are not. Do not rely on the ground through the circuit board mounting. It seems to work now, just in time too it started snowing tonight, thank you for the info, ground contacts where corroded.Re: Suburban Furnace Problems enblethen wrote: No output from the circuit board. No power to the circuit board to go to valve. That's the thing there is power but I have to tap on the valve to get it to open, every time it's like there isn't enough power to open the valve. If I turn it upside down it opens but I can't install it like that.Re: Suburban Furnace ProblemsSo I replaced the valve and still a no go so I got creative, it's run by a 12v line and the valve is 12v so I got some roach clip wires and wired the power to the cable and it opens but if connected to the furnace it won't open, any ideas on THIS problem?Re: Suburban Furnace ProblemsI tried Doug's idea of tapping on the propane supply line going into the valve when the lighting issue happened again and the next time it sparked it lit so I believe I'm looking at a bad valve. The control board isnt even a year old yet so I do not see how it can be bad and the fan and everything else works so I will see about changing out the valve and see where that leads.Re: Suburban Furnace ProblemsI have taken it fully apart and cleaned everything, I made sure all connections where fully connected and that all wires where in working order and that all intake and output vents where free of anything, the sail switch works just fine also, I tested it, when I checked the wiring, it was a bit dusty but i cleaned it off. And Doug I know it is lighting because I have the main from panel off of it that is held on by just two screws, and just above where the igniter is mounted in is a viewing window, I have watched the flames light three times and then the fourth time nothing, it runs until it reaches the temp the thermostat is set too, then it turns off and when it gets cold enough it turns back on, like it is suppose too but that fourth time nothing. I will try hitting the elbow where the gas goes into the furnace before the valve a few times to see if it lights a fourth time, I will do this a few different times and get back with you about the outcome. If it is the valve is there a way to service the valve to make it work? I`m strapped for cash at the moment.Suburban Furnace ProblemsSo my dad gave me his old rv that he just replaced the main board in the furnace its a Suburban model NT34 S and it seems to run fine about 3 time, then it goes to ignite the 4th time and will not ignite, fan runs, and there is spark but no fire, I have taken it apart and cleaned it all and re-thread taped all the gas lines, it is getting propane because it runs the other 3 times just fine but then wont start unless I turn the thermostat completely off and then back on again. If anyone has any ideas or any way to point me I would really appreciate it, Thank you in advance.