AC compressor has the shakes

[Beckytek]

One of my air conditioner compressors does some wild shaking when first turned on. The lights dim and it draws a lot of current for about 5 seconds. It has a time delay circuit that delays turn-on for about 20 seconds. When that timer times out, the unit comes on and runs fine. I removed the timer and checked it and it works fine. I don't understand how the unit would shake before power is turned on. It has a solid state relay also that went bad last year and I replaced that. Any idea what would cause that? Ron

 

[Top Shelf]

I'm just guessing here and assuming it's aCruisair unit. But I've been through 2 starter caps on two different units this summer. Could the starter cap be weak or on the way out?

Pretty easy to check. thx.

 

[Beckytek]

Thanks for the suggestion but the shaking happens before the power is applied to the compressor. After the time delay it starts right up and no shaking. It's a Lunare unit, company no longer in business.

 

[Trojan]

Something is energized.

BILL

 

[Beckytek]

Problem solved, I removed the time delay relay and no more shaking and high current draw. Compressor starts up and runs fine. Ron