[PSUBS-MAILIST] question

[Rick Patton via Personal_Submersibles]

Hi Alan, couple of questions,, I don't understand what you mean by
"Changing the red and black? when you say "put the probe on the side one
and middle one and should get 5V, what position should the potentiometer be
in? neutral or full ahead or astearn?
also, when I energise the potentiometer, the motor just goes full tilt in
one direction
so I assume it has to be energised to look for that reading?

Rick



On Mon, Sep 29, 2025 at 12:35 PM Alan James via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Rick, you can just try out the wires in different positions, you won't do
> any damage.
> Normally you have a black & a red wire & they go on the far left & far
> right pin, and a coloured wire goes on the middle pin.
> Start with the coloured wire in the middle first & change the red and
> black.
> If that fails you can check that the potentiometer is working with a multi
> meter.
> If you put the probe of the meter on one of the outside pins & the other
> probe on the middle pin, you should see the voltage vary from 0 to 5V. Or
> sometimes 0-3.5V.
> You could look inside the black box & see if the wires have come off in
> there.
> All the best.
> Alan
>
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> On Tue, 30 Sept 2025 at 11:23 am, Rick Patton via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
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