Hoover Logic 1200 A3786

[juicehills]

Re: Hoover Logic 1200 A3786

Finally found it, those terminals just didn’t look the same as I expected.

Fired it up and motor sprang into life!

Thanks you so much gentlemen, I must have had you as demented as I was!

fantastic!!

However my joy has been short lived, when I switched it on programme C it took in water and seemed to go straight into spin, that’s when the water came surging out of the dispenser overflow.!

I took the top off again and I spotted two broken wires, must have happened when I was wrestling with the anti twist kit. one is yellow with black stripe and the other is yellow with white stripe. they are just under the water inlet valves and have a white spiral shield round them?

[electrofix]

Re: Hoover Logic 1200 A3786

yes knew what you were doing but you had to spot it . have just taken a picture of a motor to post but you have found it so all ok

wow this machine is giving you a headache. think those wires feed the valves so will not cause spin problem. examine the wiring harness as it leaves the motor. make sure the plug is in properly and none of the pins have slipped. examine the wire as it goes near the floor of the machine. they can rub through at that point
you fault sounds like a tacho fault. there is a magnet and a small coil at the end of the motor. this tells the module haow fast the motor is. if its broken, wires not joined. or rubbed through. it will just go into spin

Dave

Dave

[juicehills]

Re: Hoover Logic 1200 A3786

Any idea about these two wires Dave and if they could have caused it to spew water out the dispenser overflow?

[electrofix]

Re: Hoover Logic 1200 A3786

dont think so those wires feed the water valves so dont affect the motor

Dave

[juicehills]

Re: Hoover Logic 1200 A3786

At least the suspension fix has worked, no clattering and banging!

I’m going to have a look at the wiring and motor as you suggested, getting a bit fed up with this now!
I must have upset something when trying to fit the anti twist kit, there was a lot of pushing and pulling of the drum.

[electrofix]

Re: Hoover Logic 1200 A3786

pity your so far away from me as we would have got you on the right track quicker. hope you have not damaged the module (electronic motor control) when you fitted the brushes wrong but cant remember a case of it happening but check the module connection in case they have been disturbed. there is a multiconnector at the bottom it always worth taking it off and refitting it to rule out dirty contacts

Dave

[juicehills]

Re: Hoover Logic 1200 A3786

I’ve had the motor out again and I don’t see anything wrong with the wiring, all the pins on the motor seem okay. I didn’t take the plastic cover off the module but nothing obviously wrong. There was a slight hot smell last night when I was trying to run the motor with the terminals in the wrong place!
Motor goes straight on to what I would think is high speed spin, no matter where in any programme, it doesn’t even try to reverse for the washing action.

[electrofix]

Re: Hoover Logic 1200 A3786

wonder if you have fried the module. with the brushes connected for so long and the motor got that hot you may have fried the triac in the motor control board
from what I can remember without going through old manuals the motor board has 2 main terminals on the top and a multiplug at the bottom. try taking off one of the top terminals tape it up and turn on.
I expect the motor not to move

also have you got a multimeter and can you use it ?

Dave

[juicehills]

Re: Hoover Logic 1200 A3786

Hi Dave,
I don’t have a multimeter, I did have one but could never figure out how to use it.

We are going out tonight so I won’t be able to look at it until the morning.

I’m just wondering if I should just buy another motor?

But I will still have the issue of these two wires that have become detached from somewhere.

[juicehills]

Re: Hoover Logic 1200 A3786

Hi Dave,
I have finally plucked up the courage to continue with the saga if you have the patience to carry on giving me advice?

When you say disconnect one of the main wires, do you mean one of the two black ones that are together on the opposite side of the motor or do you mean one of the two red ones just above your arrow in the photo?

I have bought a multimeter, it’s just a cheap one that the village hardware shop had in stock..

[electrofix]

Re: Hoover Logic 1200 A3786

think i am right without checking

from rear left hand side under a cover is a motor board. top of the board is 2 connectors. pull one off, insulate it, remove belt for safety. turn on and see what happens. if all correct motor should not move

Dave

[juicehills]

Re: Hoover Logic 1200 A3786

I’m hopefully at the final stage of rejuvenating my washing machine.

Does anyone have any tips on the procedure for replacing the drum bearings?

[Martin]

Re: Hoover Logic 1200 A3786

juicehills wrote:Does anyone have any tips on the procedure for replacing the drum bearings?

Corrosion of the aluminium backplate IS the major issue considering the age of the machine, especially where the foam tub gasket seats. Along with the bearing and seal kit a new foam gasket is vital.

The state of the drum shaft collar also an issue. It needs careful cleaning with super fine emery paper and plenty of high speed grease applied to the relevant area between collar, seal and front bearing.

Tension of the 12 or so backplate bolts secured in numerical order is also something to be noteful of. The numbers on the backlate are there for that very reason.

Any white pitted corrosion, especially adjacent the motor, and the chances of a successful repair are severely in jeopardy. 🙁

[juicehills]

Re: Hoover Logic 1200 A3786

Thanks Martin,
Looks a bit too daunting!!!

[Andy jones]

Re: Hoover Logic 1200 A3786

In addition to what Martin said if you see any spotting on the backplate then I wouldn’t bother going any further as the backplate probably has had it

[Author]

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