Furnace Short Cycles Off and On
I have a Suburban SF30fq furnace that cycles the heater flame off and on about every three minutes while the coach is reaching the thermostat setting (technically called short cycling on the limit swi...
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A blank, unused hole plug ( four inch round) for the outlet air distribution openings. This item was wedged directly in between the blower outlet and heat exchange where you've drawn the blue outline. Sloppy assembly. You wouldn't see it if not looking for it.
