every so often, when the T stat calls for heat,oil burner comes on, then after perhaps 15 or 20 seconds shuts off.
It will come back on after approx 45-50 minutes and function normally. This "on and quickly off" problem only seems to occur whenever it is not really too cold (55-60) outside. The T stat is a honeywell magic 32,(new batteries replaced yearly) oil furnace that is well maintained.Cad cell, etc, is also clean. When this quick on-off occurs it does not 'trip' any re-set buttons.
My thoughts on this is that the T stat calls for a cycle, but then a "current' of warmer air satisfies it(false start?) and hence it does not come on again until enough time has elapsed to call for another cycle.
Is this T stat just an overly sensitive T stat, with an "itchy trigger finger" or what.?
It's been doing this mostly in the late spring /early fall for several years now.
Any ideas, anyone? Thanks.