PROBLEM
PROBABLE CAUSE
REMEDY
The compressor
will not start, or
stops and will not
start again.
Bad connections.
Check the electrical
connections.
Clean and tighten as
necessary.
Replace fuse
Wait 25-20 mins before
attempting to restart
Blown fuse
Overload cutout
switch has tripped.
FAULT FINDING
Compressor does
not start.
Air receiver charged
(Does ot apply to
SHHH2)
(see also item 1)
Open drain valve to expel air.
Compressor should start again
when pressure reduces to
approx 95 psi.
Air leaking from
the pressure
switch valve
when the
compressor is not
running.
Faulty non-return
valve.
First drain the receiver
completely of air. Renew the
non-return valve.
Air pressure from
the regulator will
not adjust.
Replace Regulator
The diaphragm within
the regulator body is
broken.
The compressor
does not reach
the set pressure
and overheats
easily.
NOTE: It is also possible
that you are using
more air than the
compressor is capable
of delivering.
Inlet Air Filter is blocked
Renew Oil Filler/Air Filter plug
Compressor
operating, but no
air from outlet
Renew Oil Filler/Air Filter Plug
Turn Regulator clockwise to set
required pressure
Close Drain Valve
Reconnect or replace Bleed
Pipe
Inlet Air Filter Blocked
Pressure Regulator
closed
Drain valve open
Bleed Pipe (from
Pressure Switch to non-
return valve) broken or
disconnected
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