Cleaning The Pressure Tube And Hose; Electrical Maintenance - Grundfos Multilift MD1 Installation And Operating Instructions Manual

9.2.2 Cleaning the pressure tube and hose

1. Set the selector switches to OFF.
2. Close all inlet valves.
3. Loosen the screw cap.
4. Pull the pressure tube carefully out of the tank.
5. Remove any deposits. If necessary, disconnect the pressure hose from the pressure sensor,
and rinse the tube and hose with clean water at low pressure. Make sure that no water re-
mains in the pressure hose.
6. Fit the pressure tube in the tank, and tighten the screw cap.
7. Connect the pressure hose to the pressure sensor.
8. Set the selector switches to AUTO.
Related information
• 5.3.5 Level sensor

9.3 Electrical maintenance

• Check the gasket of the control cabinet front.
• Check the cable entries in the control cabinet.
• Check the cable connections.
• Check the pressure hose connections.
• Check the controller functions.
• Check the terminals on the main board for possible corrosion.
• If a non-rechargeable 9 V battery is fitted, replace it once a year.
Related information
• 9.2.2 Cleaning the pressure tube and hose
Multilift MD1, MDV | Servicing the product| 35