Beko dishwasher issues. Any engineers or elec wiz ?

Rs2k_Rider

Rs2k_Rider

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Hi all.

Got a Beko dsfn1530w dishwasher. We noticed recently it wasn't washing very well at all and things were coming out dirty. This got worse an worse.
Today I've taken it apart down to pump etc and found a lot of blockage in the actual pump fins. I've cleared all this and it's all now nice an clear.

The big problem I found was a burned out micro switch......!

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The switch lives inside the round polystyrene structure which looks as though it senses either water pressure or heat/air flow. Tbh I've no idea. !!

The details on the switch are -

TONELUCK
L42 AD
5(1)A 250VAC
40T85 5E4
____________
5A 125/250VAC


Switch has 3 pins to connect to the wire.



So. Anyone know what this does an where I can get one lol

Ty in advance
 
Its a no/nc microswitch
I may have a similar on my van. Will check tomorrow for you and if ive got one I will pop it in the post to you mate
 
The switch should be easy to source. What blew it up is another matter!

Will check around, see if I can find a schematic.
 
you will deffo get one in maplins as well mate Couple of £ max but im sure I will have some ;)
 
you will deffo get one in maplins as well mate Couple of £ max but im sure I will have some ;)
 
buzzer said:
any of these any use to you?

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Click to expand...

They look similar. But all 3 connecting pins come out into a line so they are same point into the plug if that makes sense. As in the one at the bottom extends to the length of the other two.


IANB said:
you will deffo get one in maplins as well mate Couple of £ max but im sure I will have some ;)
Click to expand...

Cheers bud appreciated.
 
danforth said:
Ok, search for schematic on hold. No success so far anyway.:Biggrin2:
Click to expand...

Would come In very useful of you could find tech manual or schematic.
Got a few plugs that I can't remember what way around they go. An nope didn't take pics as wasn't intending to have them undone but pulled an pop they went lol.


It appears the part the switch goes into is an overflow indicator group.
The switch sits inside the plastic unit an the activation arm sits against a polystyrene disc that can move up an down. The unit has two fees pipes that go to the inside of the door an end at two scoop shaped ends. So I would think if the dishwasher overflows these allow water or suds to enter the plastic body an push the polystyrene discs to activate the switch which in turn activates drain pump ?
Sound plausible ?
 
I have found that old microwave ovens are a great source of microswitches; single- and double-throw, there's usually at least half a dozen of them, most are used in the safety circuits, so rarely switching heavy currents.
 
Rs2k_Rider said:
Would come In very useful of you could find tech manual or schematic.
Got a few plugs that I can't remember what way around they go. An nope didn't take pics as wasn't intending to have them undone but pulled an pop they went lol.


It appears the part the switch goes into is an overflow indicator group.
The switch sits inside the plastic unit an the activation arm sits against a polystyrene disc that can move up an down. The unit has two fees pipes that go to the inside of the door an end at two scoop shaped ends. So I would think if the dishwasher overflows these allow water or suds to enter the plastic body an push the polystyrene discs to activate the switch which in turn activates drain pump ?
Sound plausible ?
Click to expand...

Not easy to describe is it, been here before with a tumble dryer. How old is it ? Schematic more likely if getting on a bit.

Will keep trying when I get chance, but TBH if the switches are cheap, get a couple, and risk one with test. Plug / sockets are usually marked in some way, or non reversible.

My experience anyway. Where not, look for matching wear patterns on connection blades etc (difficult to explain).
 
Think it's from about 2009-10 ish.

No marking that makes sense on plugs sadly. There is a '1' an '2' on one plug but no markings on the other side lol.
I know what you mean to check wear markings but doubt will reveal much :(
This plug I'm not sure in is one that goes to the circulation pump, to a coil type capacitor ? One side of the plug has two purple wires into one an other side single yellow I think.
Colours don't correspond to other side of wiring either as that would be too easy lol !
 
Rs2k_Rider said:
Think it's from about 2009-10 ish.

No marking that makes sense on plugs sadly. There is a '1' an '2' on one plug but no markings on the other side lol.
I know what you mean to check wear markings but doubt will reveal much :(
This plug I'm not sure in is one that goes to the circulation pump, to a coil type capacitor ? One side of the plug has two purple wires into one an other side single yellow I think.
Colours don't correspond to other side of wiring either as that would be too easy lol !
Click to expand...

Pic of circulation pump would help, and plug/socket pins also (the one you're having trouble with). Not sure about coil type capacitor, starter caps are on some motors,
but these are can type (ally cylinder) afaik , I may be out of date.

It is an electric pump, not a mechanical driven one? Again confusion about that before, way back in another thread.

No success with schematic, bit too new, no free ones anyway. Plenty of sources for user manual, but I guess you've already got that. :)
Hope this makes sense, rattled off rapidly, got to go.
 
danforth said:
Pic of circulation pump would help, and plug/socket pins also (the one you're having trouble with). Not sure about coil type capacitor, starter caps are on some motors,
but these are can type (ally cylinder) afaik , I may be out of date.

It is an electric pump, not a mechanical driven one? Again confusion about that before, way back in another thread.

No success with schematic, bit too new, no free ones anyway. Plenty of sources for user manual, but I guess you've already got that. :)
Hope this makes sense, rattled off rapidly, got to go.
Click to expand...


Hi again. :)

I will get some more pics when I pull it out again in bit an take bottom panel off :) going to have look at Maplin see if they have switch I need.

The circulation pump is electric driven with a silver tin looking cap type thing bolted to side
 
@Rs2k_Rider
Pm an address and I will put a couple of switches in the post for you mate
 
Last edited by a moderator:
Rs2k_Rider said:
Hi again. :)

I will get some more pics when I pull it out again in bit an take bottom panel off :) going to have look at Maplin see if they have switch I need.

The circulation pump is electric driven with a silver tin looking cap type thing bolted to side
Click to expand...

Sounds like a mains induction motor with a start capacitor (cap may have reversolytic, or similar, written on it).
If it is, the 2 pin plug and socket should be ok either way round, subject to below (get a decent motor pic as well).

Try a resistance check on the motor lead pins, pin to pin, reverse meter leads, pin to pin again (should be very near same reading)
If that's ok, check resistance between each pin and motor casing, and post back. (ALL WITH MAINS ISOLATED) sorry about "shouting", it's important.

Also sorry if this sounds basic and obvious, but I've been "chastised" for making assumptions before. I've still been looking for a schematic for that model,
or something very similar, tbh that amount of microswitch damage looks more than just arcing to me (not my area though) need a schematic to have better idea.
Given up on the schematic, getting nothing useful, have to risk a microswitch and see. Post pics first, would like other opinions:)
 
unujy8u8.jpg


That's the motor :) which I think is the circulation pump.
 
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