DoctorDee Report post Posted January 6, 2016 Pilot lights but then goes out about ten sec. later Is there a thermocouple that needs heated to open main line .... Share this post Link to post Share on other sites
wolfe10 Report post Posted January 6, 2016 Doctor Dee, Welcome to the FMCA Forum. Yes, quite likely a "burner area tune-up" will fix it. Look in your Norcold book. Do that before spending a penny on parts. Flame too small because of rust or dirt in the burner tube, carbon build up on the thermocouple, thermocouple not properly aligned can all cause the symptom. Share this post Link to post Share on other sites
DoctorDee Report post Posted January 6, 2016 I looked in the burner but didn't see any thermocouple Share this post Link to post Share on other sites
wolfe10 Report post Posted January 6, 2016 Please post your model number. Here are on-line manuals: http://www.thetford.com/customer-support/product-manuals/ Share this post Link to post Share on other sites
wildebill308 Report post Posted January 7, 2016 Hear are a couple of video that might help you identify the parts. This may not be your unit but the parts and terminology is helpful. https://www.youtube.com/watch?v=FCqiVqZx5k4 https://www.youtube.com/watch?v=LpnG50EpQb0 I would get a copy of the right manual from the site that Wolfe10 posted. Bill Share this post Link to post Share on other sites
DoctorDee Report post Posted January 7, 2016 Doctor Dee, Welcome to the FMCA Forum. Yes, quite likely a "burner area tune-up" will fix it. Look in your Norcold book. Do that before spending a penny on parts. Flame too small because of rust or dirt in the burner tube, carbon build up on the thermocouple, thermocouple not properly aligned can all cause the symptom. Brett, Cleaned burner , orifice and igniter , have a better flame but still goes out after 10 sec. There's some interlock that tells the unit to turn off. I don't see a thermocouple , unit works fine on A.C. Share this post Link to post Share on other sites
wolfe10 Report post Posted January 7, 2016 Please post your Norcold model number so we can be sure we are all looking at the same thing. Share this post Link to post Share on other sites
DoctorDee Report post Posted January 7, 2016 It's a Norcold 682 I'M found drawings no thermocouple Share this post Link to post Share on other sites
wolfe10 Report post Posted January 8, 2016 http://bryantrv.com/docs2/docs/600.pdf Page 12 of PDF, page 40 of document: "Ignition Electrode: Sparks to the burner to ignite the flame and SENSE THE PRESENCE OF A PROPER FLAME". Troubleshooting of propane operation begins on page 19 of 41. Page 24 shows proper gap and alignment between electrode and burner tube and electrical (ohm) test of the electrode. Share this post Link to post Share on other sites
