I thought this may have been a converter issue but apparently not. After replacing converter I still cannot get my Suburban furnace to light. The blower comes on, the igniter clicks, a small blue flame is visible in the sight glass....and then nothing.....Any thoughts my friends?Thanks for any help given.

Just a guess here but it might be the thermo coupler. I think the small flame is what heats the coupler and opens it so the gas valve will open.

What is the model number of the furnace? Sounds like the flame is not being sensed. If a direct ignition model there are 2 probabilities - dirty orifice or eroded/out of position flame sense rod.

Can't find a model number...It is in a 2007 Rockwood Ultralite. It is electronic ignition. I haven't figure out how to post a picture yet or I would send you one.Do you think the propane regulator could cause this? I probably just need to find a mobile RV tech in the Dallas Texas area since i am making a trip.Thanks to all.

Flame sensor not in flameBad circuit boardYou need to find model number!

are you absolutely positive that your propane tanks were opened correctly? If the excess flow valve is triggered, the pilot lights will come on, but the WH, furnace, won't work much if at all. First thing I'd do is make sure the gas stove will light all the burners at full flame. If not, you've got a flow restriction, likely the excess flow valve on the propane tank.

Suburban Furnace Problems/Wont' stay lit | Good Sam Community

perrodiablo
Explorer
Nov 17, 2016
Can't find a model number...It is in a 2007 Rockwood Ultralite. It is electronic ignition. I haven't figure out how to post a picture yet or I would send you one.

Do you think the propane regulator could cause this? I probably just need to find a mobile RV tech in the Dallas Texas area since i am making a trip.

Thanks to all.
prichardson
Explorer
Nov 17, 2016
What is the model number of the furnace? Sounds like the flame is not being sensed. If a direct ignition model there are 2 probabilities - dirty orifice or eroded/out of position flame sense rod.
Dog_Trainer
Explorer
Nov 17, 2016
Just a guess here but it might be the thermo coupler. I think the small flame is what heats the coupler and opens it so the gas valve will open.

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Suburban Furnace Problems/Wont' stay lit

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