2.2kW, 3 phase motor is likely a DOL starting motor. Check cold resistance of the windings ( with power off, and then check it actually is getting all 3 phases, as it is likely that you have dropped a phase in the DOL contactor, or have blown a phase fuse. If you can disconnect the compressor and check it turns freely, both motor and compressor, and that the motor will run without a load. If you have a clamp meter ( even the horrid cheap HF one will do for current measurement, but do not trust it to check mains voltage or resistance, it is way to poor to do that) check each phase is drawing the correct current, as indicated on the motor nameplate.