TROUBLESHOOTING
Problem
The product runs, but delivers
no water.
The product does not work, or
suddenly stops when running.
The motor starts again
immediately after switching
off.
The transported amount of
water is too little.
Vibrating noise when water is
taken out.
Cause
Air in the pump.
Air does not come out on the
outlet side.
Power supply disconnected.
The overheating protection
trips and switches off the
product.
The pressure in the system
drops quickly.
Air pressure too low in the
storage tank.
The non-return valve does
not close properly.
The diaphragm in the
pressure tank is damaged.
The inlet filter is dirty, or the
non-return valve does not
close properly.
The transported amount
of water depends on the
total lifting height and the
arrangement of the lines.
The pre-filter is dirty.
The diaphragm in the
pressure tank vibrates.
Action
See section on preparations.
Open the tap on the outlet side.
Check fuses and connections.
Pull out the plug, allow the
product to cool, and clear the
intake system. Prevent dry
running.
Check all the connections and
seals, and check the water outlet.
Even very minor leakage has an
adverse effect.
Adjust the air pressure in the
storage tank to 2.0 bar.
Check the non-return valve on the
suction side.
Replace the diaphragm.
Clean the inlet filter or non-return
valve.
Do not exceed the maximum
permitted lifting height as per
section on technical data. Use
lines with another diameter and/
or length.
Remove the filter and clean under
running water.
Noise can be reduced by reducing
the air pressure in the storage
tank.
EN
21