[truckbusuk]

Again thanks Tony, I shall take the temp readings at the tip of the sensor. Will be a couple of days before I can strip the fridge down as I’m a bit tied up at work at the moment, but I will report back.

Thanks Robin

[truckbusuk]

Hi, thanks, I shall rephrase … I admit it was a bit confusing …

The internal cavity temp @ 12° the sensor reading was 8.63 ohm
The internal cavity temp @ 8° the sensor reading was 10.75 ohm
The internal cavity temp @ 5° the sensor reading was 15.44 ohm
Condenser plate temp during the measurements varied between -0.75° and +2.36° as it cooled to small condensation drops that were almost frozen, then thawed back to water droplets , sorry I should have measured the plate with each reading.

So from what you are saying am I correct in thinking that the sensor seems ok, but the controller board is not interperating the sensor properly? … could the new sensor be faulty? … or do I have a board issue?

Re the board, the ventilation function works ok, the supercool function works ok, the temp set function appears to work ok as it scrolls through the temperatures.
The board connector marked with a green line appears to make good contact, and I slightly crimped the connector to make better contact … still shows F2. the connector is connected to the LHS/top connector point (depending on board orientation) with a black/white and red identifier.

Is there anything else I can/should check, or is this pointing to the controller board?

Thanks again Robin

[truckbusuk]

Hi Tony, I got the following on testing the sensor (power off.)

8.63 ohm @ 12°
10.75 ohm @ 8°
15.44 ohm @ 5°
Condenser plate temp during the measurements was between -0.75° and +2.36°

I also notice when the fridge is first powered up, the temperature the fridge is set to shows on the display ie 6° but after 20 seconds it then shows F2.

So from above I assume the sensor is operating correctly.

Again your help is appreciated.
Robin

[truckbusuk]

Thanks Tony, do you think the new sensor may be faulty?, I did put a meter on it and it is giving a reading, I would have expected if it was goosed then I would be 0. … I did cut the old sensor as per the instructions and shrink wrapped the old connector, but the new sensor is intact all the way to the controller ….

I wonder if the connector is not making good enough contact to the board ?

[truckbusuk]

Hello again, part numbers …. I was advised by Liebherr UK technical support the correct part number for the evaporator sensor was 9590182.

I spoke with Ken Watt, and at that time (early August) he was unable to source the part, no UK nor factory stock and no eta.

I eventually found the part on the web and ordered the kit, what was supplied and fitted was Liebherr – 9590182/015 sealed in a several poly bags.

Kit consisted of:-
evaporator sensor
strain relief cover
2 cable retainers
red spring holder for the sensor
heat shrink tubing
back casing foam seal
2 tywraps
silicone putty
aluminium foil tape
instruction sheet

Cheers Robin

[truckbusuk]

Hi, sorry didn’t have notifications switched on … the fridge info is …

It’s a Liebherr build in larder fridge.
Service-Nr 9981488-00
Model IK3510 Index 20/001
Serial-Nr 30.323.196.5

I will post the part number I eventually sourced in the morning.

Thanks Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

Thanks Martin, all completed on Sunday, both bearings replaced and rear seal replaced. The seal was looking very sorry for its self with a large build up of what I think was soap residue, cleaned up ok and the shaft was clean and undamaged, but the bigger bearing was totally shot, and washed out … hence the noise.

Bearings tapped out quite easilly and replacement was straight forward.
I also changed the drive belt and the motor brushes as they were down to less than 10mm. Total time for the job was about 2 1/2 hrs taking my time, wow the drum to cross frame to drum bolts were tight.

All in all I’d say a remarkably well build machine, although I bet Bosch dont make them like that any more.

Again many thanks to all that helped, better half please her trusty washer is back in rude health. 🙂

Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

And the answer ….

Seems it was simply a hex bolt with a plastic cover, bolt as described by Martin (thanks again)
albeit a very tight fit and it only came loose after trying to use a “damaged head” removal tool, revealing the 13mm hex bolt as described.

again many thanks to all that helped.

Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

Ok, Job is done and as simple as described by NigeGT (again thanks 😀 )

As to the “strange bolt issue” see pic above …

@Martin, have you seen this before … I had not.

@lee8 … sorry but from your post ” Tread wisely if a 13mm bolt head is unfamiliar, you maybe entering very unfamiliar seas of despair.” seemed to me you were the one that was mocking.

download/file.php?mode=view&id=1767

and the answer ….. next post as I cant work out how to paste multiple pics.

Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

Thanks 🙂 I maintain nuclear powerstations … 13mm hex bolt is not a problem, although I admit this is my first washing machine 😛 , when you see the pic, this aint no normal bolt.

Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

Thanks for the info, I feel better and at least know what to replace it with if I have problems, I’ll post a pic after I’ve removed it.

Thanks again, you have put my mind at ease.

Robin 🙂

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

I should add its a WFF2000GB/11 FD7607 01 830

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

Thanks guys, but no, its a strange castlated bolt (rounded base to the castlation) with a built in shoulder (built in washer I assume, )defo not a torx, I’ve never seen anything like it before. It looks about the same size as a 13mm bolt but with this strange top edge.
It must be origional, as the only repair the m/c has ever had was the capacitor in the 2nd week we owned it back in 1996.

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

OK, answering my own question here, the parts have arrived and the bearings are indeed sealed, so do not require to be packed with grease.

However the question of the strange pulley bolt remains … anyone?

Thanks Robin

[truckbusuk]

Re: Bosch WFF2000 washing machine – bearing howl

OK, had the back off the machine, and all looks as described by nigegt (thanks 🙂 ) The problem is defo the bearings, and I think the water seal has been weeping, as there are rusty stained water marks on the back of the drum, on the motor and on the machine floor, so I guess the grease has been washed out the bearings, hence the failure.

I have ordered a bearing kit, motor brushes and a new belt, so will give it a go. A last question(s), before I start ….

1/ the pulley bolt looks a strange shape that needs a special tool? any suggestions.
2/ do the new bearings need packed with grease or are they prepacked, ready to fit?

Thanks in advance

Robin 🙂

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