Operating Guide

Troubleshooting Guide

⚠ WARNING

Read all safety information found in this manual and in the Material Safety Data Sheets

(MSDS) for any refrigerants used with this machine prior to performing any service on this machine.

SYMPTOM: Machine will not start, no sound when power switch turned ‘On’

CAUSE SOLUTION

Power cord not plugged in, or no power in outlet Check power cord, try different outlet

Machine in High Pressure Shutoff See symptom below

Motor in Thermal Overload Allow motor to cool down

SYMPTOM: Machine tries to start, makes humming/buzzing sound

CAUSE SOLUTION

Low voltage at source outlet Try different power source outlet

Voltage drop in extension cord See Extension Cord sizing guidelines on Page 4

Too much back pressure on compressor Try starting the machine with the valves on

the Manifold Gauge Set closed to reduce back

pressure on compressor

SYMPTOM: Machine pumps into high pressure shutoff

CAUSE SOLUTION

Valve on machine or recovery cylinder not fully

opened

Check that the valve on the recovery cylinder is

fully opened

Restriction in output hose Check hoses for any blockage;

Remove any core depressors

SYMPTOM: Pumps liquid slowly

CAUSE SOLUTION

Flow restrictions on input side of machine Use 3/8” hoses;

Remove “Schrader” valve cores and core

depressors

Trapped liquid in system Cycle system compressor for a few seconds to

move trapped liquid to another area;

Check for condensation on system, and apply

heat as needed;

Check for condensation at hose ttings, and

apply heat as needed

G1SINGLE OPERATION MANUAL