220v 2.2kw capacitor start, capacitor run motor, runs slow and overheats

by Frank Duffin
(Cardiff, Wales, UK)

Got this motor to run a hydraulic press. Even when not connected to press the following happens:
Motor starts up really slow, the cable (16 amp) starts to heat up from the plug end. If left on for more than a minute the motor starts to heat up.

It is a 220v motor single phase.

Was working before being posted to me, it was taken to 2500psi where it stalled the pump.

I am certain the supplier is correct and it was ok before posting.

The plug is connected to a 30amp main fuse in my house. It blew a 13amp fuse before I changed the fuse to 20amp. I am wondering if the problem is the start capacitor/run capacitor or the changeover switch?

I am just using a normal switch, ie no soft start, DOL etc. My research suggests that this motor should run on a normal 220v household supply, albeit linked to a 16amp + fuse.

Frank
The connection box has four connections, U1, U2, 3 and 4. My live is connected to U1, neutral to U2.