Troubleshooting Guide - Appion G5 Twin Operation Manual

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
Power cord not plugged in, or no power in outlet
Machine in High Pressure Shuto
Motor in Thermal Overload
SYMPTOM: Machine tries to start, makes humming/buzzing sound
CAUSE
Low voltage at source outlet
Voltage drop in extension cord
Too much back pressure on compressor
SYMPTOM: Machine pumps into high pressure shuto
CAUSE
Valve on machine or recovery cylinder not fully
opened
Restriction in output hose
- See Tip # 1 on Page 14
SYMPTOM: Pumps liquid slowly
CAUSE
Flow restrictions on input side of machine
- See Tip # 2 on Page 15
Input Valve on machine not fully open
Trapped liquid in system
- See Tip # 2 on Page 15
SOLUTION
Check power cord, try di erent outlet
See symptom below
Allow motor to cool down
SOLUTION
Try di erent power source outlet
See Extension Cord sizing guidelines on Page 4
Try starting the machine with the Input Valve closed
to reduce back pressure on compressor
SOLUTION
Check that both valves on machine are fully open
(pointing upward);
Check that the valve on the recovery cylinder is fully
opened
Check hoses for any blockage;
Remove any core depressors
SOLUTION
Use 3/8" hoses;
Remove "Schrader" valve cores and core depressors
Check that the blue Input Valve on machine is fully
open (pointing upward)
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 fittings, and apply
heat as needed
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G5TWIN OPERATION MANUAL
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