HNF3157 Hoover Nextra spin related faults

[Vossy1]

Hi, New to the forum, looking for help so be kind 😆
I have an 8yo Hoover Nextra 3157 which has various ‘issues’ all related to the spin cycle, which are:
sometimes it doesn’t spin at all and refuses to empty…this is usually rectified by selecting a short cycle, sometimes having to run it 2 or 3 times before it spin/drains down.

sometimes it refuses to spin but drains down, leaving clothes soaking….usually rectified by a few short cycles.

sometimes it spins but not at full pelt leaving clothes semi wet.

I’ve tried using the individual spin cycle with varying results. Last night it refused to spin at the end of a wash cycle, simply turning the washing a quarter turn then stopping, repeating this until it timed out. I removed the washing, as always checked the drain filter (clear) then decided to take the back of the machine.
I detached the drain hose and pressure hose from the bottom of the drum, nothing in either. I took the top of the machine and checked all connection were secure, took the PCB out, checked for obvious cracks/burns in circuit, nothing.
Put it back together, washing in, onto a new spin cycle.
This time it spun at a slowish speed in bursts of about 10 seconds then stopped repeating until it timed out.
I tried this a few times in a attempt to spin some of the water out then removed the clothes and tried it on a empty spin cycle, same result. One last time I put the washing back in on a spin only cycle and to my surprise it spun a lot faster but still no where near 1600 RPM and clothes still wetter than they should be.

I’m a bit perplexed by this fault as it doesn’t seem to fit into any category. I’m thinking the motor is fine, the cycle is fine but something is wrong with the speed setting.

Any help would be greatly appreciated 😉

[Martin]

Re: HNF3157 Hoover Nextra spin related faults

Motor fault, check the brushes and the state of the armature. 8 yrs old it should be in need of a bit of TLC.

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Thanks for the quick reply Martin 😉
One thing I forgot to say (non spin related) is that the 90 cycle went a long time ago, won’t even light up on selection.

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

I removed the motor and cleaned the armature, it was dirty but not that bad. I disassembled the carbon brushes, they had quite a lot of life left in them, refitted the lot and tried a load.
Spinning better but still not full speed. I also decided to replace the carbon brushes after that load as they’re cheap enough.
Yesterday we put a small duvet in and the problem of a pulsing very low speed spin lasting about 4 seconds has returned, when I say slow I mean about 2 revs per second, 120rpm.
Could this be a faulty excessive load sensor preventing the spin, it just seem odd that a heavier load has triggered the problem. I’ll try another load later today but don’t hold out much hope.

Thanks for any help in advance 😉

[Martin]

Re: HNF3157 Hoover Nextra spin related faults

Look closely at the copper segments on the armature. If some at blackened more than those alongside them then it would indicate the armature was duff. Often coupled with excessive arcing of the brushes. Check also that the tacho magnet behind the tacho coil is firmly located (on end of motor). Remove coil to check that!

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Hi Martin thanks for the feed back, I’ll do that later.
I’ve just tried the spin cycle with just the duvet cover in it.
It appears the motor is getting an intermittent feed or there may be a motor fault. The revolution of the drum is broken, it’s spinning say an 1/8 of a revolution pausing momentarily then another 1/8. When it enters the next spinning phase in the opposite direction it’s just spinning an 1/8 and that’s it, not even a revolution…very odd…sound like anything you know of?
I’ll post some pics later when I take the motor out.

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Cleaned armature, motor housing and brushes. Brushes show little sign of wear for 8 years old v new



I can’t see anything obviously wrong with the motor, it seems to be doing what it’s told to do, no spin longer that a 2 rev burst at slow pace until cycle times out 😡 😆

[Martin]

Re: HNF3157 Hoover Nextra spin related faults

Looking at the commutator, those segments toward the bottom look darker than the ones above. I don’t think it is anything to do with the shade either. 🙁

Does the machine tumble on wash OK?

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Hi Martin, Yep, the machine tumble washes fine.
We took the wet duvet which wouldn’t spin in our 7.5kg Nextra, round to the parents in law and it spun fine in their 6kg Candy machine. I’m wondering if their could be a faulty load indicator on our machine which is preventing the motor from doing it’s job…ie, over riding the spin cycle, does that sound feasible?
When we went out we also put a full load in our machine and came home to find it was semi spun dry, clothes still a bit wetter than they should be.
I put the load on for another spin cycle and it worked fine, albeit it didn’t do the full 1500 rpm spin.

Hmmm

[Martin]

Re: HNF3157 Hoover Nextra spin related faults

Vossy1 wrote:When we went out we also put a full load in our machine and came home to find it was semi spun dry, clothes still a bit wetter than they should be.

When you came home at looked at the machine was the Start LED flashing by any chance?

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

I didn’t look TBH. It’s half way through a 60 min cycle now, I’ve told the Mrs to leave it when it’s finished and will check then 😉

[iadom]

Re: HNF3157 Hoover Nextra spin related faults

Have to agree with Martin, that comm looks suspect . 🙁

Sent from my iPad using Tapatalk HD

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Right ho M…60 cycle finished…most important bit…full 1500 RPM spin and no flashing lights/fault code at end of wash!

EDIT, thanks for looking I 😉
The comm was fairly uniform in colour, it was a RPITA taking that pic lol, I’ll see if I have another.

EDIT…slightly out of focus but bigger

[iadom]

Re: HNF3157 Hoover Nextra spin related faults

It’s not the colour as much as the slight variation in the gaps between the segments, ideally the edges should be perfect, in most cases if you have one or two gaps that don’t look perfect then you will find the segments on the opposite side will also show signs of damage.

If our thoughts are correct then the fault will return quite soon, listen for a dry, crackling noise on full spin, or put the machine on full spin with the lights out when it is dark. You may be able to see the brushes arcing if you lie down and look under the front.

[Vossy1]

Re: HNF3157 Hoover Nextra spin related faults

Different morning, different problem 😥
Just tried 2 spin only cycles, the initial drain pump phase starts then a minute or so later the cycle just stops, there’s not even any cycling/clicking of motor phases, from the controller, nothing….ruddy thing :rolls:
Door lock comes off no flashing start button…nada 😆

[Author]

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