Question about Hitachi Heating & Cooling
Ac is charged and working.as soon as you raise rpms compressor disengages.idle comes back on.jumped preassure switch with same result.
Most compressor has a speed sensor to compare with the cranshaft sensor to prevent the compressor locked up.When you raised the RPM, after 15 sec, if the 2 sensors are not in synch then the computer thinks that the compressor is locked up so it disable the cluctch that was why your AC stops working. Check out your Compressor speed sensor. Good luck.
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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