The heat blower controls on my volvo fm460 suddenly stopped working.
It is blowing very hot air, I can't control the flow of the air or the temperature.
Air conditioning also not working neither does the Night heater.
But even if the ignition is turned off it still keeps blowing the hot air.
I did the on board diagnostic, under CCM it is showing U114188 fault code.
I have to disconnect the battery every time I finish the work for the day then it stops the blower.
Can you please help. Any guidance regarding above will be appreciated.