The burners ignite and appear to burn fine, but then turn off after a few seconds.Turn off happens...
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The burners ignite and appear to burn fine, but then turn off after a few seconds.Turn off happens about time that system activates main blower motor. System refires igniter and repeats cycle. I looked at exhaust outlet from ground level (roof is still icy so didn't look closer yet) and saw no visible obstructions there.
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