Reply to thread

Message: <blockquote data-quote="mchild" data-source="post: 122370" data-attributes="member: 7812">Back probe the electrical connection at the compressor to confirm you have 12 volts there when the A/C system is turned on. If there is voltage and the center part of the compressor hub is not rotating then the clutch is faulty. If there is no current at the connector then test at the switch in the cab. If there is power on both sides of that switch when it is turned on then check the wiring for damage between the switch and the compressor . Also, in addition to the air filter being clogged, the heat coil and A/C evaporator can be clogged with dirt - and it does not take a lot to make the A/C non-functional. Properly cleaned and otherwise properly functioning A/C the cab should get plenty cool even on a mid-90's day here on the humid east coast of the US.</blockquote>