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Technical Support

If the following guides do not provide you with the information that you need, you can also can also send us a description of the problem you are having and we will do as much as we can to help you quickly solve it.

Technical Support Inquiry


TroubleShooting Guides

Here is a guide that you can use to help you troubleshoot many common problems that can occur with your G5Twin or G1Single.

Note: Please read all safety information in your manual and the Material Safety Data Sheet(MSDS) for any refrigerant or other chemicals you may come into contact with before servicing this machine.


Symptom Cause Solution
Compressor will not start. Power cord not plugged in or plugged into a bad outlet. Check power cord, try a different outlet.
Machine in high pressure shut off. See symptom below.
Motor in thermal overload. Allow motor to cool down.
Compressor tries to start but just makes a buzzing sound. Low voltage caused by poor source power, small gauge extension cord or too long of an extension cord. Locate better outlet, reduce length of extension cord and use a heavy gauge cord.
Too much back pressure on compressor. Close the input valve to relieve any back pressure on compressor.
Compressor runs then stops after a short time. Low voltage caused by poor source power, small gauge extension cord or too long of an extension cord. Use a meter to check for proper supply voltage while machine is running. Locate a better outlet if neccessary and/or use a shorter extension cord.
Machine pumps into hight pressure shut off. Valve on machine or tank is closed. Check to see if valves are opened and are not plugged.
Restriction in output hose. Check hose for blockage and remove any core depressors.
Relieve pressure from output hose to reset switch.
Pumps liquid slowly. Restriction in flow. Use proper size hoses and if possible remove any core depressors and Schrader valves.
Trapped liquid in system Cycle system compressor for a few seconds to move trapped liquid to another area.