I have a Ruud gas furnace that won't lite, Mdl. #UGL G 05EAUER, Ser. #DA 1 D302 F 08 94 3334. White Rodgers 36E37-214 gas control, Honeywell S9201A-1028 HSI & remote sensor. The ignition cycle seems OK, hot surface ignitor heats up, distinct "click" when ignitor reaches the right temp. but no gas. I tried to check the voltage, 24vac, across the valve and across the valve terminals on the IFC, but I'm not certain I tested the right terminals. On the IFC I tested across the wires I believe are coming from the transformer and got 28vac, on the valve I tested across the 2 terminals 3 times and read from approx. 22.8 to 23.6vac. I tested hot to ground once and read 24.2. Is this enough info for someone to determine the problem? If not I'll be happy to provide more info if I can.