I would like to verify that my Grundfos Selectric UPS 15-50 Pump is operating correctly.
(n.b. I have already confirmed that it hasn't seized, by manually turning the pump through the air vent hole with a screwdriver.)
Are the below steps valid:
(n.b. I have already confirmed that it hasn't seized, by manually turning the pump through the air vent hole with a screwdriver.)
Are the below steps valid:
- Cut mains power to house.
- Open pump to reveal electrical internals (as shown in photo)
- Disconnect live, neutral, earth cables shown in photo.
- Connect a bit of 3-core mains flex to the terminals shown in the photograph and wire the other end to a 3-pin mains plug, in a wall socket.
- Replace pump terminal cover to make it safe.
- Set my two motorized valves to manually open, so water can flow.
- Put some towels down.
- Remove Air Vent Screw (marked in red).
- Restore mains power to the house.
- Observe pump: I'm expecting to see rotational movement in the air vent hole and I'm expecting to hear some whirring. Adjusting the speed control should change the pitch of the whirring.