Forum Discussion
Old-Biscuit
Sep 24, 2018Explorer III
What Brand/Model?
If it is DSI (Direct Spark Ignition) then gas valve solenoid and Spark electrode are energized at same time.
Spark electrode fires (Click, click, click) while gas flows to burner ---spark ignites flame and then 'flame proving' signal is sensed by circuit board and holds dc on gas valve/stops it to spark electrode.
No spark....
Wrong gap ----should be 1/8"--3/16"
Bad wire connection from board to electrode...loose/dirty
Bad wire thru ceramic...replace electrode
Bad ground connection....electrode mounting screw provides ground....clean/tight
Bad circuit board....spark circuit/high voltage transformer etc
Water temp has to be down below 100*F/110*F (Brand/Model) in order for t-stat to close and call for heating. Otherwise no reason to heat.
If it is DSI (Direct Spark Ignition) then gas valve solenoid and Spark electrode are energized at same time.
Spark electrode fires (Click, click, click) while gas flows to burner ---spark ignites flame and then 'flame proving' signal is sensed by circuit board and holds dc on gas valve/stops it to spark electrode.
No spark....
Wrong gap ----should be 1/8"--3/16"
Bad wire connection from board to electrode...loose/dirty
Bad wire thru ceramic...replace electrode
Bad ground connection....electrode mounting screw provides ground....clean/tight
Bad circuit board....spark circuit/high voltage transformer etc
Water temp has to be down below 100*F/110*F (Brand/Model) in order for t-stat to close and call for heating. Otherwise no reason to heat.
About Fifth Wheel Group
19,006 PostsLatest Activity: Jan 13, 2025