Hard start

[Darrin]

What do i need to replace if the compressor has a hard time starting? It hums when the pressure drops and tries to recycle.

[Mark]

Hi Darrin,

I can think of many problems that could cause what you are experiencing.

Are your using a long, small gauge extension cord? Too long and too small of a cord will starve a motor of the power it needs to run properly.

Check the oil level. If the oil is too low the piston can seize to the cylinder. Too much oil can cause excessive pressure in the cylinder, stopping the motor.

There could be a bad bearing. A seized bearing can cause enough resistance to stop the motor.

There are a couple of capacitors on the motor. At least one of them will be used to help start the motor. A motor shop can test them to see if they are both working properly.

Those are the most likely causes. You will need to do some testing to figure out which is causing your problem.

I hope this helps with your repair!

-Mark

[Marty]

I've dealt with this problem since I bought it new 3 years ago. After changing the wiring to 12g and still having starting issues, I finally concluded that the oil may be the problem because it only does it in cold weather. I changed the oil but went with an AMSOIL synthetic (as recommended) but a lighter weight of 5w30. End of years of cold weather starting issues.