Replacing The Power Supply Unit (Power Supply Kit) - Grundfos AQtap Service Instructions With Installation And Operating Instructions

17.9 Replacing the power supply unit (power supply
kit)
1. Prepare the AQtap for internal servicing, see section
17.3 Preparing the AQtap cabinet for internal servicing.
2. Unplug the relay connector and solenoid valve signal
connector at the control unit.
3. Screw off the four screws from the power supply unit.
4. Take off the cover from the power supply unit.
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5. Loosen the screws at the power plug and take out the mains
supply cable wires.
6. Loosen the cable gland and take out the mains supply cable.