Grundfos SOLOLIFT2 C-3 Installation And Operating Instructions Manual page 8

5.3.3 Removing a foreign body in the tank
If there is a foreign body in the tank, follow the steps
below to remove it.
1. If the water level in the tank is above the motor
flange, disconnect the power supply and drain the
tank by means of the drain hose.
2. Unscrew the cover.
3. Remove the four screws of the motor flange.
4. Lift the motor flange to reduce the compression of
the O-ring. Insert a screwdriver into the notch
underneath the power cable and press it down.
5. Lift out the complete motor-pump unit by the
handles.
Lift the unit vertically before tilting it.
5.3.4 Unblocking the float switch pipe
To unblock the float switch pipe, follow the steps
below.
The float switch unit can be removed separately.
1. If the water level in the tank is above the motor
flange, disconnect the power supply and drain the
tank by means of the drain hose.
2. Unscrew the cover.
3. Turn the bayonet coupling 10° clockwise.
4. Pull out the float switch unit.
5. Press in the two tabs on the protecting tube.
6. Pull down the protecting tube.
7. Clean the float switch pipe.
8. Check that the float switch works properly before
fitting the cover.
9. Lubricate the O-ring seat of the float switch in the
motor flange for easier fitting.
8
5.3.5 Carbon filter
Replace the carbon filter once a year to ensure
sufficient filter function.
Instead of using a carbon filter,
SOLOLIFT2 can also be vented through a
venting pipe. In this case, a venting valve
is needed. Product number: 98059587.