10
Problem
Little or no air
flow.
Possible cause
Diaphragm protective
switch activated.
Diaphragm damaged, or
external impact.
Diaphragm protective
switch design by model:
• LP-60HN
Solution
Disconnect power.
Remove housing via
4 screws on tank.
Protective switch activated as
below. (Photo 4) Return to non-
activated position by hand.
(Photo 5).
If the diaphragm is damaged
(Repetition triggering of
diaphragm protective switch)
service pump by trained service
personnel!
Photo 4: Diaphragm protective switch activated.
(Pump switched off).
Photo 5: Diaphragm protective switch not activated.
(Pump switched on)
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