Make sure the front left log is not sitting directly on the thermopile generator. I had two of those do that in the last 3 weeks. One was a brand new installation. Either cut the back of the log out for clearance or prop it up slightly. Both solutions worked for us. Both solutions were confirmed as fixes through Mendota technical.
CSIA Certified Master Chimney Sweep
CSIA CDET Dryer Exhaust Technician
NFI Master Hearth Professional
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