Question about Robinair Cool Tech 34700Z Recovery, Recycling, Recharging

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Robinair 34700 recovery problem

My ser number is 22447. Date Code 0298. In recovery mode the machine will only run for several seconds, and then it shuts off for high pressure. I have verified that the recovery solenoid is opening. The compressor is running. The machine high and low guages show that the vehicle has 75psi. We connected an auxillary guage to the port just before the filter drier and it shows shows 35 psi when the machine is trying to recover.

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  • hager_lucas Jul 14, 2010

    Today, I ran the machine in recycle for approx. 30 minutes. The machine ran as expected. Following the recycle, I ran it in recover without hooking it to a vehicle. It Pulled the lines down into a vacuum after a minute and shut off showing complete at the end of cycle. That was perfect. I hooked to a vehicle. It recovered perfectly. I have no idea what I did. I may have had some blockage that the recycle or vacuum pull cleared. Not sure. But, it works.

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It sound like one of the pressure trunsducer is not working or disconnected from the manifold assy.or from ISV tank.Please check Low,High and ISV tank pressure transducer

Posted on Jul 10, 2010

  • Hasan Khan Amran
    Hasan Khan Amran Jul 14, 2010

    Yes,you are right! There was blockage somewhere in the manifold assy.that the recycle or vacuum pull cleared! You can continue to use the machine. but remeber every time when you press recover, do not skip "Clearing in pogress" mode. because during self clearing machine test it self to work normal.

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