Trouble shooting
Observation
Possible cause
Action
Pump does not
operate.
・
Improper electrical
connection
・
Check plug and outlet
and plug completely.
Discharge air
decreased.
Pump surface
is abnormally
hot.
Pump operates
intermittently
・
Pipe or diffuser clogged
・
Valve in plumbing shut
・
Filter element clogged
・
Clean pipe or diffuser.
・
Open the valve
・
Clean filter element.
Pump operates
but with
abnormal noise.
・
Faulty valve or diaphragm
・
Replace valve and
diaphragm.
Replacement parts
Kit name
Contained parts
Quantity (pcs)
Diaphragm repair kit for JDK
Diaphragm
2
Diaphragm holder
2
Nut
2
Valve box
2
Filter element
1
Overall cover packing
1
