Thermocouple line broken on the one that lights but goes out when you release the button. ( I taped mu button down BC im sick of the line breaking but this does strike safety concerns with some...)
Google thermocouples and learn how they work. I would suspect you will help further problems as well.
With the one that only burns on high I would check how far the jet is screwed onto the Venturi port, I suspect it is not drawing enough air with the fuel.
OR the Jet is clogged
OR the L M H know is defective
OR the tank valve is restricting or poor fuel flow from fuel source.
Lots of things to look for but tough to know what to look for if you do not know exactly how and why these heaters work the way they do.
If you are up by Mille Lacs I could take a look at them. Ive been running the same cooker/heater since 98' repairing as I go.
Posted on: 2013/1/21 14:36