Oil furnace won't stay on... please help!

Morning everyone!

Before I start, I would like to mention that I called a technician but company I deal with said one won't be available for another 3+ weeks. So here I am...

I click the reset button and oil furnace lights up and burns for about a minute then shuts off. I have to wait another minute before doing it again and then it shuts off again. After doing this 4-5 times, the blower finally comes on but the oil furnace shuts off again. After waiting for the reset to engage again, I hit the button again and then we have heating as both the oil furnace and blower work together. But once the desired temperature is reached and both shut off, I have start the entire procedure again.

Important information:

1- I just had a new oil tank installed last summer (2008) and it worked fine. I did leave the tank dry all summer and just had it filled 3 weeks ago.

2- I replaced the oil and air filters yesterday.

3- I removed the flame detector and tested it with an ohm meter and it works just fine (I probed the 2 tongs in darkness and then placed the flame detector in direct light and it closed the circuit).

4- I removed the nozzle and cleaned it.

5- I've bled the line so many times that I lost count...

6- Wall thermostat works fine (only have one in whole house).


I'm an aeronatic/defence machinist and consider myself mechanically inclined but this problem has me stumped. Please help