Service Instructions - Grundfos Sololift2 D-2 Montage- Und Betriebsanleitung

7.3 Service instructions

Thanks to the product design, service is easy in case
of malfunction or blocked pump.
Digits in the following sections refer to the pictures in
the appendix at the end of this booklet.
Warning
Before carrying out any service work,
remove the fuse, pull out the plug, or
switch off the power supply. Make sure
that the power supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
The product must only be serviced by
trained service personnel.
Impeller stuck
1.1 Disconnect the power supply.
1.2 Unscrew the cover.
1.3 Turn the motor shaft to the right and left with a
screwdriver inserted into the slot in the shaft end
to free the impeller from dirt.
1.4 Fit the cover, and switch on the power supply to
check if the impeller can rotate freely.
Operation by means of a power drill
2.1 If the product cannot be operated by electrical
power, the tank can be emptied by means of a
power drill. First disconnect the power supply.
Foreign body in tank
3.1 If the water level in the tank is above the motor
flange, drain the tank by means of the drain
hose. First disconnect the power supply.
3.2 Unscrew the cover.
3.3 Remove the four screws of the motor flange.
3.4 Lift the motor flange to reduce the compression
of the O-ring. Insert a screwdriver into the notch
underneath the supply cable and press it down.
3.5 Lift out the complete motor-pump unit by the
handles.
Note
Lift the unit vertically before tilting it!
3.6 Check and clean the tank and impeller.
Check that the pressure switch works
Note
properly (press diaphragm carefully)
before fitting the cover.
Pressure switch stuck
The pressure switch unit can be
Note
removed separately.
If the water level in the tank is above the motor
flange, drain the tank by means of the drain hose.
See 3.1. First disconnect the power supply.
4.1 Unscrew the cover.
Turn the bayonet coupling 10 ° clockwise.
Pull out the complete pressure switch.
4.2 Check and clean the diaphragm of the pressure
switch.
Check that the pressure switch works
Note
properly (press diaphragm carefully)
before fitting the cover.
Lubricate the O-ring seat of the
Note
pressure switch in the motor flange for
easier fitting.
Carbon filter
5. The carbon filter should be replaced once a year
to ensure sufficient filter function.
Instead of using a carbon filter, Sololift
can also be vented through a venting
Note
pipe. In this case a venting valve is
needed. Product number: 98059587.
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