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.

On 3/14/2014 at 9:07 PM, MACKTRUCKS4 said:

The round vents are on the superliner , the other is on my 94 RD

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?