I have a Vermont Castings Radiance Direct Vent Gas Stove. Pilot lights and stays lit but the burner does not come on. I get no millivolts from the thermopile and I bypassed it by jumping the TH w/ TPTH terminals but still the valve does not open. Yet when I turn the pilot off I hear what sounds like to me the valve close-maybe it's the magnet in it. To me I'm thinking I need to replace the thermopile and valve-are there any other tests you think I should do before ordering these?