[uksteve]

Re: Pinouts / faultfinding for Hotpoint pressure switch ?

AMS wrote:You’ve also got to ask yourself why the pressure switch failed in that way. The heater element could have gone down to earth. It’s happened to me. Worth insulation testing the element before fitting a new pressure switch.

Hi Dave, thanks for that.

Given that the switch is now unstuck, and the machine is working – we can probably presume that the heater hasn’t gone down to earth. I haven’t got a megger, but when I find someone who has, it might be worth a quick check.

I used to be a hardware/software engineer – but now I only work with software, so laying my hands on test kit and bits of hardware is not so easy.

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Steve

[uksteve]

Penguin45 wrote:Steve,
Do NOT put the machine back into service. It thinks it’s already full of water, so the heater will blow pretty damn quick – it’s an immersion type only!!

{snip}

You could try giving the switch a sharp tap with a plastic screwdriver handle – the contacts may free up – BUT – if they’ve jammed once, they WILL do it again.

The contacts were stuck. A very sharp wack got them unstuck. Tested the machine using a tube and my mouth instead of water and it worked fine. Machine now back online and we’re watching it lilke hawks 😉 Thanks Penguin45 – you really saved my butt whis weekend, we were beginning to handwash… Now off to get a new switch.

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Steve

[uksteve]

Re: Pinouts / faultfinding for Hotpoint pressure switch ?

clivejameson wrote:
….yess….duff press s/w…contact 1-2 should be made normally, moving to 1-3 under pressure, then returning on release of pressure!
Not a particularly common fault but easily (and cheaply) rectified.

Thanks, Clive! That’s brilliant. 😉
I was almost sure, but your confirmation is just what I needed.

My next problem is finding one quick! I’m even tempted to put the machine back online without the spin – still better than hand-washing.

Thanks again!

—
Steve

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