[Murphwiz]

Thanks for the pointers.
will give it a couple more runs, and stick it back under the worktop.

[Murphwiz]

Runs couple of cycles, seems to be working fine.
is the water in the pressure pipe enough to fool the switch?

[Murphwiz]

Not yet no, just debating what else could cause it.

[Murphwiz]

Removed sensor, there was a little water in the pipe.
gently blew into sensor, can hear switch move.
with a multimeter, no pressure, it’s open circuit, blow into sensor, changes to 0 ohms.

blew into sump, that seems clear, blew down outlet hose, that ‘blocked, removed hose, appears to be a one way valve on the body, so appears normal.
any thoughts.

[Murphwiz]

Many thanks, will take look.

[Murphwiz]

Is there a spec for the sensor, so I can check it?

[Murphwiz]

Many thanks.
I pulled drain pipe and did a quick rinse cycle, plenty of water came out, then stopped but pump carried on before E3 beeped.
so guess pressure sensor thinks water hasn’t finished draining.

[Murphwiz]

Thanks Dave, typing error on my part, but I can’t update title, it should be:

Hoover HDPN 1S643PX-80

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