Weil-mclain boiler clank at startup

[KDG]

I have a Gold GV Series 3 (±20 years old) that had the motherboard, ignitor, gas valve replaced this winter as I lost all heat & hot H2O in the dead of Colorado winter.

With the new parts, I got back up & running BUT this weird clank clank clank clank happens when it goes to fire up.

I do not recall if this happened prior to all of the issues this winter.

Here is a video of the noise:

InShot_20230623_132345945.mp4

drive.google.com

 

[Fitter30]

This might be your manual. Sounds like the gas valve is cycling. Put your hand on the.valve and should   feel it cycling. When was the hot surface igniter replaced or the ventor blower wheel checked for dirt more than two years. Igniter replace it.

https://www.google.com/url?q=https://www.weil-mclain.com/sites/default/files/field-file/gv-series-3-manual_1.pdf&sa=U&ved=2ahUKEwitjIXWqdr_AhWQrYkEHc5mClwQFnoECAkQAg&usg=AOvVaw1u4qBARkqEhldQqhdqUesJ