Cab air-con was blowing warm air. Unableto reset. ~~~~~ 3570 Cab air-con was blowing warm air Unable to reset. CE found 3570 no cab A/C fault but A/C blowing vent air. Temp 29.8c.  3570 cab A/c filter replaced. Checked system pressure - All OK. Secured CCU CN1/CN2 connectors & cab control unit connector as a precaution. Cab A/c able to cut-in & cab area temp. 24*C.  Hanafi/Chan SW 44622