I had bought a DURAHEAT DFA75T kerosene/Multi Fuel space heater for my shop and it has always started right up and never given me any problems. I live in New England wone sis nt fsasae the winters can get fairly cold so having this heater during winter time is a crucial, must have piece of equipment. I remember using it last year one last time and I ran it until it used up all the kerosene in the tank and died, I then proceeded to pack it away until the next time I needed it. When I put it away in storage during the summer months it stayed well protected in a climate controlled garage, and this winter when I pulled it out of storage to use it the electric motor would not come to life. I made sure the motor was free and not bound up from sitting for several months, everything rotated easily if you manually spun the motor shaft. There were no signs that a mouse or any other rodent had chewed or damaged any of the electrical wiring or components and just to be sure I broke out the multimeter and continuity checked all visable/accessible wiring. I also tested for incoming power and completely inspected/tested everything on the main PCB board and also changed out the tubular glass fuse and still could not find the issue. I made sure that the rear rotor and vanes were also moving freely and there was nothing that could be binding the motor solid and at that point I went ahead and verified all of the other components were functioning properly (igniter, photo cell, capacitor, on/off toggle switch, igniter Leeds/plugs, PCB, Vacuum lines, power cord, all the ground connections, fuel pick-up filter and just about anything else you could possibly check. I believe the problem lies within the motor itself which I have no idea how to open up the housing, there are no bolts holding it together and I could only guess that it is a press together. Can anyone tell me how to get this housing apart so I can continue troubleshooting the problem, I will scratch a few photos. (P.S. the motor has been discontinued so buying a new one is not feasible, I would like to repair the original motor that came with the heater. Any suggestions or help would be much appreciated, Thanks, Dan

 

That motor says 15uf and the parts listing says 12uf.
Have you tested the capacitor ? Not just looked at.... actually tested or subbed it.
Did you confirm 120vAC on the red and orange wires ?

It certainly looks like a pressed together motor.
They can be almost impossible to open without causing damage.

Motor part # 3970-0034-00
Could not find any subs.
Fireplace parts . com shows that motor as in stock.