There is a way to reset the aircon, which worked for me, with the ignition off press and hold down the heated mirror button, switch ignition on but don't start the car whilst still pressing the heated mirror button use your other hand to press the off button 5 times within 10 seconds once pressed 5 times turn ignition off then restart your crv and see if that works , it worked on my honda CRV 2010 aircon working now