Metasys META Air Einbau, Betrieb Und Wartung Seite 29

PROBLEM
Compressor does not build
pressure or very low perfor-
mance
Compressor does not build
pressure or very low perfor-
mance
Air leaking from pressure swi-
tch valve when compressor is
not running (versions without
solenoid valve?).
Air leaking from solenoid
valve when compressor is not
running.
Air leaking from solenoid
valve when compressor is not
running (versions
solenoid valve).
Air leaking from pressure swi-
tch valve when compressor is
running (compressors without
solenoid valve only)
The compressor does not
reach the maximum pressure
and/or easily overheats
Loss of air from the vent valve
of the compressor pressure
switch off (for versions without
the ethrovalve)
Air loss from the compressor
electrovalve off (for non-
lettrovalve versions)
Loss of air from the vent valve
of the working compressor
pressure switch
Air pressure from regulator
does not adjust.
Compressor operating, but no
air from outlet.
Safety valve placed before
dryer filters is active
Electric motor cuts off during
normal operating
PROBABLE CAUSE
Compressor valve damaged
Compressor piston ring consumed
Faulty non-return valve.
Faulty non-return valve.
Faulty non-return valve
with
Faulty pressure switch valve
The suction filter is locked.
WARNING: it is also possible that
the required air is higher than the
compressor capacity
Damage to intake valves
Wear of piston compression rings
Air leakage from the vent valve of
the die-off compressor pressure
switch
Air leakage from the vent valve of
the die-off compressor pressure
switch
Malfunction of the vent valve of the
pressure switch
Diaphragm inside regulator body
is broken
Inlet air filter blocked.
Pressure regulator closed.
Drain valve open
Filters are blocked and over pres-
sure condition in the delivery pipe
Electric motor temperature probe
switches off the compressor to
protect the moto
REMEDY
Replace the complete valve block
including gaskets.
Verify compressor performance
and replace the piston rings
Clean or replace the non
return valve
Clean or replace the non
return valve
Drain the compressor from the
residual pressure. Clean or
replace the non return valve
Clean or replace the pressure
switch valve
Replace the suction filter
Replace the complete valve plate
Check the thickness of the rings
and replace them
Drain the compressor from the
remaining pressure, clean or
replace the non-return valve pad
Drain the compressor from the
remaining pressure, clean or
replace the non-return valve pad
Clean or replace the vent valve.
Replace regulator.
Replace oil filler/air filter plug.
Turn regulator clockwise to set
required pressure.
Close drain valve.
Replace the cartridges of the
dryer's filters.
Too high temperature: verify gene-
ral conditions
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