"HeatMan" wrote in message
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"CBHVAC" wrote in message
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"bill" wrote in message
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Carrier Gas furnace model 58PAV090. What is the normal heating
sequence? during the heat cycle, is it normal for the gas to cycle on
and off while the blower continues to run.


No.


Its like the high temp
limit switch is closing then reopening (during a cycle where the
thermostst has not been satisfied). should the gas valve cycle or is
this typically not normal. not enough air flow...filter, open
registers....thanks bill

No one here can tell you. Its being cause by something, and it could be
as
simple as a bad limit, or an improperly set gas valve.



Y'all musta found some funky gas valves lately. This is the second thread
you've mentioned it in...



Ever seen one with the burn rate set too high?
Can cycle the unit in and out and in and out several times over the course
of a call for heat.