Ask Me Help Desk - Napoleon 1401 blowers starts and runs 15-20 seconds, stops, then starts up again?

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Napoleon 1401 blowers starts and runs 15-20 seconds, stops, then starts up again?

Napoleon 1401 fans start up and run 15-20 seconds, then stop for a minute or two, then repeat 15-20 seconds, etc. What could be causing this and what could I do?

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