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Thread: ignition module troubleshoot
10-17-2012, 08:24 PM #14
I too, would look at the HX before taking any time to troubleshoot the 3 wire...
10-17-2012, 10:35 PM #15Professional Member
- Join Date
- Dec 2011
Is this unit on LP? I think carrier had an add-on lock out timer, and gas pressure switch that tied into in incoming pressure tap of gas valve. I have changed many lock out timers for this problem over the years. As many have said though, I would check hx, that model was bad about holes in cells right above burner opening of face plate. Good luck!