ThomasLM

Thank you that was a very detailed reply and appreciate you taking the time to answer. I will see about getting the part.

I have a Suburban SF-25F RV Furnace that is not working properly. I followed the instructions to start and here is what it does: - Blower comes on - You can hear the igniter click -then you can feel and hear the burner blowing hot exhaust out - however it only lasts about 20 seconds then turns off and - then cycles two more times doing the same thing - then after the third attempt the blower runs for about 5 minutes and turns off. What have I done: - Removed the furnace and checked the "sail switch" (after isolating it I held multimeter to it and move the switch up and down, continuity when on and off as I moved the switch. - Then I isolated the High Temp switch and had continuity thru it. - then I disconnected and reconnected all wires to ensure goo connection. BUT IT STILL DOES THE SAME THING. Any ideas