Checked filter checked temp drop which was off. Cycled ac found condenser coil was very clogged, washed coil checked all electrical components and controls and restarted the system checked charge found low side pressure was high and high side pressure was low checked amperage on compressor and determined that a compressor valve is either damaged or worn and system is not able to keep a good differential. Reccomend replacement of the system customer agreed Greg coming out to give qoute and see if air handler will need to be replaced.