Have noticed that now that it is warmer and have tryed using A/C, that when the compressor engages, it bogs the motor down then kicks out. Is there a setting that I may have overlooked that I need to change to correct this? Idle now is set at 850rpm's, but drops alot when A/C engages. Have checked to make sure system has enough freon in it not to cause the clutch on compressor to kick out. Need your help, thanks.