[Mark Flint]

electrofix wrote:

where are you getting 10 litres a minute from as all the user manual says is water pressure from 0.3 to 10 Bar

I must have read it somewhere else – 10 litres per minute – for example here: https://www.bosch-home.com/qa/en/service/get-support/26_support_selfhelp_dishwashers_repair_problems_water_tab_error_in_display

I thought that was the rate water should flow through the inlet hose. As Kentish says in his comment – this is not usually (or ever) the case. So the 2.25 litres per minute I measured through the aquastop hose is probably normal. That’s great – I can eliminate the hose from the equation!

So it most likely is the reed switch counter Dave.

Cheers! Mark

[Mark Flint]

If I take the drain hose straight up at the back of the dishwasher, and then a gradual slope to the sink trap, that should help the pump motor as the majority of the drain water will gravity feed to the trap. But will this introduce a large section of air into the hose, and would that be bad?

[Mark Flint]

electrofix wrote:the number is a part number of the flow counter

the fact the old unit had a reasonable water flow would mean its probably not the fault

Dave

Dave, here’s a quick video. The hose is not going into the dishwasher and is only flowing at 2.25 litres per minute. The dishwasher specs say it needs 10 litres per minute. I get an E02 (water fill) error whether the hose is connected to the water matrix or just going to a bucket. https://youtu.be/8CcAJEB32XA

Mark

[Mark Flint]

Thanks for the input. It would be great if drain pump motors rated at a few more watts could be found for these situation – like 60w instead of 40w.
Mark

[Mark Flint]

The trap is going to be new – it’s not in the current arrangement shown in the photos. Sorry for any confusion.

[Mark Flint]

I wanted to edit my reply to include a bigger picture, but can’t seem to edit my own posts

[Mark Flint]

electrofix wrote: was the old water hose faulty ?

have you checked the water counter as these fail and machine gives same fault code 1760940100

Dave

Thanks Dave.

I don’t remember what the electrical resistance was on the old solenoid hose but I did a flow rate check. The flow rate through the old hose (into a bucket) was down to 2.25 litres per minute (solenoid was powered from the dishwasher). As the output into the bucket gives a true indication unaffected by any sensors in the machine it seemed like a no brainer to replace the hose. But the new replacement hose didn’t prevent the E02 error from stopping the program at the fill stage. I just got a cheaper replacement “aquastop” non-OEM hose. By the way, where did you get fault code 1760940100 from?

Regarding the water counter (picture attached) I think I just checked for continuity and TBH can’t remember the result but it gave me the impression it was OK. I guess it’s cheap enough to replace it and eliminate it as a possibility.

My thinking is that the problem could be…
1) the hose AND the water counter were both broken, and replacing the hose alone did not solve it.
2) the replacement non-OEM hose is as original spec
3) the volts/amps to the hose solenoid are insufficient due to unwanted resistance somewhere

Could I have missed something?
​​​​​​​

[Mark Flint]

electrofix wrote:if the traic has blown something has pulled too much current

look at pic which pin is your triac connected to

Dave, many thanks for that. According to your pic the triac is connected to the lamp. I will check what’s going on with that. Much appreciated.
Regards, Mark

[Mark Flint]

kwatt wrote:Yes but note, the expected life is not defined so it is in the eye of the beholder and what would be considered to be “reasonable” but completely without any form of guidance.

K.

Sure. Expectations will be a bit subjective. If we take the average cost of a new fridge-freezer as say £500-£600 it would be interesting to line up 10 people and ask how long they would say is a reasonable life expectance. To be honest I think those saying less than 5 years would be a minority – but perhaps I’m living in the past.

I think it is irresponsible that manufacturers are placing sensors and evaporators in places which cannot be serviced. Many buyers will not understand this at the time of purchase and I think there would be more push back from the public if they realised it at the time they parted with their money. OK. Whinging over! Many thanks for your expert input into this thread.

[Mark Flint]

kwatt wrote:Kinda but, good luck getting anywhere with it. They might give some sort of concession but that’s the best you can hope for without a fight I’d reckon.

K.

Agreed. No doubt a fight would be needed. I just received this piece of information regarding the Consumer Rights Act 2015 (bold emphasis is mine):

In the UK consumers are protected by the Consumer Rights Act 2015, which provides certain rights and remedies when goods purchased are not of satisfactory quality, not fit for purpose, or not as described.

If a product has a shorter-than-expected lifespan due to a fault or failure that was not made clear at the time of purchase, consumers have the right to seek a repair, replacement, or refund from the seller. This right applies regardless of any manufacturer’s warranty or guarantee, and it covers products bought from UK-based sellers, whether purchased online, in-store, or through other means.
(chatGPT)

[Mark Flint]

electrofix wrote: it will be the tacho coil on the back of the wash motor, done a few

electrrolux dont supply it but the one of the Beko washers is the same

Dave

Thanks Dave! Will get one ordered.

[Mark Flint]

kwatt wrote:
Case in point, you will likely have to scrap a four-year-old machine and buy another. Two hits on resources and costs in four years, when those machines should really be serviceable and last over a decade.

I have heard a rumour that, regardless of a flimsy 2-yr guarantee, the cost of a machine should give by an “expected” working life. If a machine breaks down at 3 or 4 years and is not serviceable there is an argument that the sale fails to meet reasonable expectation and the retailer is liable. Have you come across this school of thought – do you know if it’s backed up by any legislation?

[Mark Flint]

kwatt wrote:

On a great many now the sensor/s will be embedded in the insulation next to the fridge evaporator that is also embedded in the insulation behind the rear wall of the cabinet. Many are irreplaceable and not available as a spare part as they were never intended to be replaced.
…
Yup. And it looks to be a foamed in one that is not available so the unit is scrap if that’s failed I’m sorry to say.

K.

Did I read that correctly – the evaporator in some cases is embedded in insulation and not serviceable?

The machine is less than 4 years old and is scrap. It is disappointing to hear that manufacturers actually do this. But many thanks for your insights!

[Mark Flint]

electrofix wrote: diagram shows a sensor attached to connector PL802 on the board
this sensor will be what has failed

Many thanks for digging up that diagram Dave. There is no sign of a sensor in the fridge freezer. As an aside, the word “cerpanine” is a mystery. Nothing shows up on Google.

[Mark Flint]

kwatt wrote:Ordinarily, yes, you’d expect that, but it depends on the unit IME just how it presents and how it’s reported.

But it’s kinda like the phial or sensor being sited incorrectly, the unit just runs and runs…

K.

I wish there were a phial or sensor on this model. There’s nothing except 1) PCB board with the temperature pot on it – and 2) whatever they mean by ‘main board’. I have replaced both of these without any improvement. Is there ever a situation where PCB boards need ‘resetting’ or ‘syncing’ together?

[Author]

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