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This should be the manual for your fan control
Do these test
We can go from there, if I miss you tonight I will pick your response up in the morning.
Hello again, it would be the fan timer circuit board that runs the fan when 24v power is sent to Y from R when there is a call for cooling... the Y wire and the C wire should be run to the AC unit outside in that case.
If you can send me a photo of the terminal strip on fan control board that shows a wire from Y and one from C going outside unit, I can confirm that for you... use the paper clip icon at right end of the tool bar above for that.
If I miss you tonight I will pick your response up first thing in the morning.
Thanks for letting me work with you. When we are finished, if my answer has been polite, professional,and thorough, please click one of the ratings . If you still need help let me know!. Expert is not paid for assisting you until you rate answer. Feel free to follow up for30 days at no additional cost.
Hello again, the fan timer would not cut power to the AC unit but could prevent the fan from running in AC mode.
The beckett oil burner has nothing to do with the AC function.
Pictures will be good, however nothing in the oil burner will affect AC function.
Hello again, you need to do these tests, without the tests you and I will have no idea what is going on.
The circuit board controls power to the oil burner,,, but a high temperature safety cut out switch and the thermostat controls power to the circuit board, we need to test all that, the link above shows you how to do those tests 1 thru 6 in that sequence.
We can go from there.
again, click here for the test instructions >>> http://screencast.com/t/LJyLOCE155
That is my mark up of your superb terminal strip photo.
Hello again, thanks for the compliments, the light testers are not good enough, most do not read 24volts at all, and none read between two terminals,,,, for $30 you can get a decent one that is also save on higher voltages... or for $15 you can get a real cheap one that is not safe on higher voltages.
Thanks for letting me work with you. When we are finished, if my answer has been polite, professional,and thorough, please click one of the ratings . If you still need help let me know!. Expert is not paid for assisting you until you rate answer. that is how I earn a living and it does not affect your charges. Feel free to follow up for30 days at no additional cost.
Hello again, the college training in this business is 2 years full time, then 4 years working under the supervision of a journeyman... even then its a bit thin...it takes 20 years to good at this sort of thing.
Oil furnace men can be hard to find however, if you can tell me which direction you are from the center of the nearest town or city I can see who is in the area with good ratings.