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Sounds like you either have a gas pressure issue if igniter is lighting . Do you have a manometer or gas pressure gauge that reads pressure in inches of water column.?
Do you have other gas appliances that are working properly?
1. Do you have a meter to verify we are getting 24v to valve when igniter lights?
2.Do you hear the valve click?
3.Do you smell any gas at all?
4. LP or Natural gas?
Valve should click after igniter warms completely up. Do you have a volt meter to verify the 24v to valve?
Just be sure to get one that reads AC volts and has leads. Walmart actually should have an inexpensive on.http://www.walmart.com/search/?query=home+improvement+multimeter&adid=22222222220107959698&wmlspartner=wmtlabs&wl0=e&wl1=g&wl2=c&wl3=19768211533&wl4=kwd-3993672937&wl5=1013134&veh=sem
Unplug the blue and red wires at valve. Put meter leads into the fe,ale spade terminals. Turn thermostat to call for heat.After igniter lights up watch meter and see if we get between 24 and 28 volts.
That is correct.Board should automatically send voltage to valve after a preset time (Usually 17 to 20 seconds) after igniter starts to glow.
Let me know what you find.
May have had air in gas line then.
If you have further questions, please let me know.
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