Hi all, I'm having trouble with my suburban furnace NT-20SE. It starts up, warms the camper to the proper temp then shuts down like it should. When the thermostat calls for heat again the furnace will not restart. All I get is a slight buzzing noise from the module board. Any ideas? Thanks.
Make sure the points in the thermostat are clean. Your initial push to start the furnace from the OFF position provides a tad more pressure on the points than the usual cycling at temp does. Then I'd check wire-wiggle the furnace for loose connections - they do vibrate quite a bit. Also tap on the relay lightly and see if it's getting tempermental.
Thanks for the response. I just cleaned the points and will give it a try. The points were not making good contact to begin with as they sit at a bit of an angle to each other. Don't dare bend them as I fear they will pull loose of the plastic! Thanks again! I use my heater in my fishhouse in Minnesota and I'm itching to get out on the lake! Sounds crazy I know but it's truly relaxing to be in a nice warm shack on a frozen lake.
The sail switch was getting hung up on the mounting bracket. Put a penny in behind the switch as a spacer, clipped the top corner off the sail and bingo! It works! Look out fish, here I come!
Prairie Schooner
, not sure what to try next. Maybe the sail switch next? Looks like the fish are safe for at least one more day.
Linear Mode
