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Weil McLain gv90 flame led flashing

canaka1canaka1 Member Posts: 2
3 year old install, power led (green) comes on tstat and pressure led come on after just fine but then flame led starts flashing
Changed the inginter $55 didn't work
Tried to adjust gas flow didn't work
Changed the main board didn't work
Changed the gas valve now works like a charm
With the manual gas valve off, the gas selenoid was working, tested by taking it apart and cleaning filter screen and checking if it opens when ignighter gets hot, but it would not fire the boiler, only after changing the whole gas valve esmebly (selenoid and housing) it worked
Is it possible low gas pressure from the street in extremely cold weather 3f ruined the valve?
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