Atwood Water Heater Eratic Operation
I have a new to me 2007 Itasca Meridian with a 10 gallon Atwood lpg/electric water heater. When I turn on the gas operation switch the unit ignites and heats the water and turns off. Then the proble...
Forum Discussion
Intermittent firing
Pull all spade connectors off and make sure they are making tight/clean contact
(brown wires on t-stat/red wires on ECO/red wires on gas valve)
Pull connector on circuit board...clean contact surface with pencil eraser. Check that all pins make tight/clean contact
Check/clean/tighten grounds......ground wire from circuit board/ground screw on bracket for spark electrode/gas valve ground wires
Check spark electrode to ground rod gap---1/8"
Check that high tension wire from circuit board to spark electrode has clean/tight contacts
Other items........
Burner tube clean and aligned so that gas flows down center of tube
Spreader plate on end of burner tube parallel with end of tube
Burner orifice clean
Good cleaning on contacts especially any with white scaly deposits...usually from dripping Temp/Press Relief valve just above ECO/T-stat
Doesn't take much resistance to stop 12V DC
Pull all spade connectors off and make sure they are making tight/clean contact
(brown wires on t-stat/red wires on ECO/red wires on gas valve)
Pull connector on circuit board...clean contact surface with pencil eraser. Check that all pins make tight/clean contact
Check/clean/tighten grounds......ground wire from circuit board/ground screw on bracket for spark electrode/gas valve ground wires
Check spark electrode to ground rod gap---1/8"
Check that high tension wire from circuit board to spark electrode has clean/tight contacts
Other items........
Burner tube clean and aligned so that gas flows down center of tube
Spreader plate on end of burner tube parallel with end of tube
Burner orifice clean
Good cleaning on contacts especially any with white scaly deposits...usually from dripping Temp/Press Relief valve just above ECO/T-stat
Doesn't take much resistance to stop 12V DC
