PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Will not start
Check power supply
Make sure power is turned
on
Low pressure
Safety valve leaks
Replace safety valve
Drain cock open
Close drain cock
Loose tubes or fittings
Tighten fittings
Dirty or plugged air filter
Clean or replace as necessary
Compressor
Clogged inlet filter
Clean or replace as necessary
Overheats
Dirty compressor, head, cylinder,
Clean with compressed air
intercooler
Operating pressure too high
Reduce operating pressure
Compressor cycle too long.
Allow for longer rest between
Proper cycle is 50-60% on Stop/
cycles
Start operation.
Compressor
Leaks in air system
Replace worn components as
Loads and
necessary
Unloads or Stops Pressure switch differential
Make necessary adjustments
and Starts
adjusted too close
Excessively
Defective compressor valves
Replace valves
Compressor too small for
Upgrade to larger compressor
intended use
Automatic Overload Reset
Wait 20 minutes and the Auto-
matic Overload will reset
Insufficient
Clogged inlet filter
Clean or replace as necessary
output, low
Leaks in air lines, air valves,
Replace worn components as
discharge
fittings, etc.
necessary
pressure
Compressor incorrectly sized
Upgrade to larger compressor
Drain valve left open
Close drain valve
Defective pressure gauge
Replace pressure gauge
Leaking head gasket
Replace head gasket
Pressure switch adjusted too
Make necessary adjustments
low, or defective
Worn or defective compressor
Replace worn parts
valves
Worn piston work out ring
Replace worn parts
Restrictive check valve
Clean check valve and replace
if necessary
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TROUBLE SHOOTING
Summary of Contents for silent series
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