EE 6 usually indicates a fuel problem. You said you just moved the heater. If the fuel pump is making a loud ticking sound it means it isn't getting any fuel. Try pressing the fuel reset located on the lower right side of the heater. There is a float in the fuel sump that can get latched up so that it will not let any fuel into the sump if the heater is moved or jarred or the sump gets too much fuel in it. You say you have fuel, do you mean in your barrel or is it coming out the fuel line behind your heater? It is possible you have an air bubble in your fuel line that you need to get out. Hope this helps.