Originally Posted by wetbar
no the compressor tries to kick on, when it can't it clicks off. Yes the cap is going across the brown herm and the common of the cap.
I would pull the disconnect and make sure the LV control system is functioning 100% correctly. Does the contactor stay engaged?
If not, will it stay engaged with pressure switches bypassed?
Now remove the extra cap (ie return it to stock condition where it was known to be running fine) and re-connect the disconnect and see what happens.
If the clicking out is the actual contactor then I'd think the problem is the protection circuitry (LP, HP, etc) or the contactor itself.
Could the original cap be bad if it's still in the circuit? I don't think your super start cap will function properly if it's in the circuit with a bad cap.
What kind of system is it? How long did it sit without refrigerant? How old is it?
Can you ohm out the compressor?