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Problem Cause
Action
Pump does not work
Power plug is disconnected
Plug in and check if electricity is
available
Cord is broken (Internal wiring
damaged)
Check electrical continuity with
circuit tester
Auto stopper activated
Open cover to check for damage
on diaphragm
Excessive noise
Valves or diaphragm are
damaged
Open cover to check for damage
or disconnection
L-Tube is damaged or
disconnected
Re-connect or replace
L-Tube
Pump is in touch with
surrounding articles.
Re-position pump
Discharged air volume
decreases
Air filter is clogged
Clean or replace air filter
Air diffuser or pipe is clogged
Clean air diffuser and check
piping
Abnormal temperature arises
Air filter is clogged
Clean or replace air filter
Air diffuser or pipe is clogged
Un-block air diffuser or pipe
Pump sometimes operates and
sometimes not. *
Air filter is or diffuser is clogged
Clean or replace air filter or
diffuser
*A decrease in airflow (caused by clogged air filter or air diffuser) may lead to
an extraordinary rise in operating temperature. This will activate a thermal
protector and stop the pump. When the temperature reduces, the pump will
automatically restart.
If in doubt about any service or maintenance procedures, please call
partsandpumps.co.uk
