Great thread! Had intermittent problems with the unit not lighting off. When I wiggled the four wire connector at the gas valve, it would light. Found this site and re-soldered the connection for the relay on the circuit board. Unit works fine! You need a T-15 Tamper Proof TORX bit ($5.99 @ Harbor Freight Tools) to take the cover off (not a T-10 listed above). This was on a Honeywell SV9500M 2682 gas valve.