David Bidelspach

Then again, maybe the Freon is not at the proper level, too little or too much (Pressure). My Mechanic says the Freon is correct. I need to have him double check. Thank you.

Perhaps, it is the High Pressure Switch, Switch - Binary or Expansion Valve. Again, any help would be greatly appreciated. Thank you.

We are working on a 2012 Mack GU713 Granite. The A/C Compressor does not start with the normal switch. We checked the Switch on the Dash, and it is working properly. If we provide Power to the A/C Compressor, the A/C Compressor does work, and Blows Cold. It appears we have Power to the ECU, but no Power from the ECU to the A/C Compressor. I am thinking there is a Sensor, that is telling the A/C Compressor not to turn on. Any help is greatly appreciated. Thank you.

1986 Mack RW613 Superliner. I am looking for a New or Used Air Conditioning Cover with the three (3) Round Hole Vents. Any idea, where I can find such?