Tip & How-To about Heating & Cooling
Your oil burner motor has stopped spinning, so you have a problem. Do you tackle the job of changing it yourself or call someone to do it. How hard of a job is it? Can you do it yourself? All these questions flood your mind. Rest easy, the job really is not that difficult and you probably can do it yourself.
Changing the motor on an oil burner is actually a very simple task. There are a few things that you will need to know that will make things go smoother for you. Always remember to kill the power before working on the burner unit.
The motor on most oil burners is the round black thing on the right hand side as you look at the burner. On the flange of the motor you will find two screws that hold the motor on. Remove these two screws and pull the motor, with the fan on the shaft,out from the main body of the burner. Sometimes the coupling to the oil pump will come along and sometimes not. It does not matter either way, you will want to check it for cracks and wear anyway.
Unhook the wires to the motor in the junction box that the protectorelay is fastened too. Two screws will loosen that enough to slide it away to get to the wires. Remember where you unhooked the wires from so you can get them back in the right place. Loosen the set screw on the fan and remove it. Take note of the gap between the side of the fan and the motor flange so that you can reinstall the fan on the new motor at the same distance.
Now install the fan on the new motor. Reinstall the old coupling, if it is in good shape or install a new one. Be careful to get the coupling on the shaft of the oil pump correctly. With many types of couplings it is easier to line up the splines of the coupling rather than the flat spot on the shaft. Tighten down the screws of the motor, while spinning the fan inside the burner housing to make sure that it is not binding up. If it begins to turn hard, then find out why and fix the problem. Burner motors are fractional horsepower and will not start if they have any resistance to turning.
Hookup the motor wires to the right connections, and replace the protectorelay on the junction box. You should now be able to restore the power to the oil burner and fire it up.
There now that was not hard at all!
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