Troubleshooting - GMC AC30G Instruction Manual

7. Take care when discharging air from the tank, i.e.
from the safety valve, the drain cock or the air outlet.
Compressed air can be extremely dangerous. Take care
the discharge air does not cause dust, stones or any
other foreign particles to be blown through the air and
that the air is discharged in a safe manner.
Trouble
Motor will not run, running too
slow or becoming excessively hot
Main compressor sticking/tight
Vibration or abnormal noise
AC30G_AC40G 13

Troubleshooting

Possible cause
Power fault or supply voltage too low
Power cord too long or too thin
Faulty pressure switch
Faulty motor
Main compressor sticking/tight
Moving parts damaged by heat
due to insufficient lubrication
Moving parts damaged or blocked
by foreign particle
Loose part
Foreign body in main compressor
Piston connecting with the valve seat
Moving parts excessively worn
13
Possible remedy
Check the power supply
Use authorised service centre
to replace the power cord
Use authorised service centre
to repair or replace the switch
Use authorised service centre
to repair or replace the motor
Use authorised service centre
to repair or replace faulty parts
Use authorised service centre to
check crankshaft, bearings, con rod,
piston rings, etc and replace
where necessary
Use authorised service centre
to check and repair if necessary
Use authorised service centre
to check and clean if necessary
Use authorised service centre
to increase size of gasket
Use authorised service centre
to repair or replace
12/8/05, 4:49 PM