Hey folks - I see so many furnace troubleshooting threads but could not find this specific issue.
I have a Suburban SF-30F that runs but will not make heat. I bench tested and confirmed the high limit switch is ok, the sail switch is ok, the motor runs, the igniter fires, I can see spark.
I do not smell propane (or very faint) coming out of the exhaust when it attempts to fire up.
I have gas running to the stove no problem.
I am wondering if anyone has experienced issues where the gas pressure is good enough for the stove but too low for the furnace? Maybe the tank is too low to provide adequate pressure for the furnace? Is that possible? Another thought is perhaps the regulator on the tanks are not operating properly and that should be replaced?
I'd like to avoid pulling the unit back out if I can solve it with the above - if not my next steps would be ohm testing the gas valve on the furnace, if that's ok maybe pulling the valve and the burner to check for obstructions but it's a really clean unit and from what I understand that's a lot of work. After that I'm really out of ideas.
Any suggestions would be appreciated.
Thanks!
I have a Suburban SF-30F that runs but will not make heat. I bench tested and confirmed the high limit switch is ok, the sail switch is ok, the motor runs, the igniter fires, I can see spark.
I do not smell propane (or very faint) coming out of the exhaust when it attempts to fire up.
I have gas running to the stove no problem.
I am wondering if anyone has experienced issues where the gas pressure is good enough for the stove but too low for the furnace? Maybe the tank is too low to provide adequate pressure for the furnace? Is that possible? Another thought is perhaps the regulator on the tanks are not operating properly and that should be replaced?
I'd like to avoid pulling the unit back out if I can solve it with the above - if not my next steps would be ohm testing the gas valve on the furnace, if that's ok maybe pulling the valve and the burner to check for obstructions but it's a really clean unit and from what I understand that's a lot of work. After that I'm really out of ideas.
Any suggestions would be appreciated.
Thanks!