8
Troubleshooting
Malfunction Possible Reason Solutions/Remarks
pump does not operate air supply line blocked/closed
muffler blocked
working chambers blocked
air control system defective
discharge line blocked/closed
open air supply
clean/replace muffler
remove blockage
replace air valve system
clean/open line
pumps operates unsteadily piston rings worn
air control system worn
diaphragm rupture
air control system soiled
check valve blocked
icing
replace piston rings
replace air control system
replace diaphragm, clean pump
clean/replace air control system
cleaning, removal of bulk particles
improve air processing
air within liquid suction line leaky
container with liquid empty
diaphragm rupture
cavitation
seal suction line
fill/new container
replace diaphragm
adapt suction lift, possibly install
suction pressurised air chamber
insufficient discharge pressure insufficient pressure/amount of
driving air
air supply line leaky
air control system leaky
check valve worn
more air consuming components
increase air supply
check/repair air supply
replace air control system
check/replace check valve
increase pressure/amount of air
output decreases air control system soiled
icing
air pressure drop
suction line/inlet strainer soiled
discharge line/outlet strainer soiled
muffler blocked
check valve worn
change in viscosity
more air consuming components
clean/replace air control system
improve air processing: dryer/filter
ensure sufficient supply of air
cleaning
cleaning
replace the muffler
replace valve
change back/adjust pump
increase pressure/amount of air
pump stops itself icing of the air control system
air pressure to low
air pressure drop
discharge line blocked
air filter blocked
valve closed
air control system defective
wear/leaking of air control system
diaphragm rupture
check valve blocked/worn
improve air processing:
dryer/heater etc.
increase air pressure
ensure sufficient air supply
clean discharge line
clean air filter
open valve
replace air control system
replace air control system
replace diaphragm, clean pump
clean/replace check valve
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