Replacing The Flow Sensor (Flow Sensor Kit) - Grundfos AQtap Service Instructions With Installation And Operating Instructions

17.5 Replacing the flow sensor (flow sensor kit)

1. Prepare the AQtap for internal servicing, see section
17.3 Preparing the AQtap cabinet for internal servicing.
2. Unplug the flow sensor connector at the control unit.
3. Remove the ground wire plug (lock on wire).
4. Remove the clip.
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5. Pull out the sensor together with its O-ring.
6. Plug in the new sensor with O-ring in the same orientation as
the old one, with the cable pointing downwards, until you hear
a "click".
7. Attach the clip and plug in the ground wire plug.