- This topic has 17 replies, 7 voices, and was last updated 20 years, 2 months ago by
.
-
Posts
-
Both these ….erm …machines shall we say, are giving me nightmares.
Both have 8 flashes (heater relay cannot be activated).
The wd12 is doing it every time. Tried everything, the only thing that tested low res. was the thermistor. put in a new one. Still the same.
The kitchen feels a little damp so I’m taking the machine to the workshop to test in there but I can feel a screamer coming on as its one we sold fourteen months ago. 😥The other is an intermittant eight flashes. Again tested everything but every time I get it to go past the fault point it reoccurrs next wash ( and then goes through, and then doesn’t) 👿 .
Sometimes it would be nice to have a van full of parts just for this one machine so you can keep swapping them until the fault goes. 🙄The only thing I haven’t done is send the boards for testing, but when I have done in the past they always come back as ok 😥
Tony C
Re: Indesit wd12uk, w103
Broken leads on the thermistor plug is one of the big problems with these but you can’t see it as they break inside so it looks fine.
Dave.
Re: Indesit wd12uk, w103
The customer with the w103 nigh on threw it out of the house with me still holding on to it saying get me a recon. So looks like I’ll be stripping the beast down and setting fire to the individual parts 👿 in a ceremonial pyre kind of stylee.
After I’ve found the fault that is!!
😈
Tony CRe: Indesit wd12uk, w103
cornwell40 wrote:
After I’ve found the fault that is!!That bit is easy, its writtten on the front and begins with ‘I’ 😉 😥
Re: Indesit wd12uk, w103
The dreaded WD12 and W103. Try these :
1 dry the board with a hairdryer & then get a fine wire brush and scrub the green side. Get the customer to ventilate the kitchen better
2 change the carbons (even if 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} left on them – uneven wear can cause timer rotation)
3 tighten edge connectors with stanley blade (each pin). On the tiny edge connectors where it is not possible to get a blade in – pull them off, nip them hard with your fingers and replace.
4 check thermisters (about 25-40K when cold). Remember that the WD12
has 2. The one on the top of the tub is the favourite one for going open circuit or the wire to it snapping.
5 check heater for earth leaks
If all this fails to get the machine going, send the board to us for test. Make sure you mark the model number on the board.
Tony http://www.emwelec.co.ukRe: Indesit wd12uk, w103
Tony
What does brushing the board do? I’ve got the machine in the workshop at the moment to test it. The kitchen its in is the old style terraced add on and feels well cold whenever you walk in. After an hour in there I need a stiff wire brushing (there’s a house on the main road near here that I think can sort that out though:wink: ).
Tony CRe: Indesit wd12uk, w103
Can’t understand why everybody distrusts the error codes on these machines to the extent that that it is the last thing to be checked. In my experience code 8 is usually pretty accurate and is faulty heater relay contacts. In most cases changing the relay sorts the problem. The microcontroller monitors the output from the relay and if it does not get any response signifies this error.
As these little relay contacts handle all the heater current, common sense says that they are a prime failure point, but it is also very possible for this to be an intermittant fault so checking the board does not necessarily uncover the problem. It is better to change the relay to make sure. At £1 for the part and 5 mins to do the job it is an easy way to eliminate the componant.
I know that these machines are a pain and i hate them as much as the next person but to be fair i have had one of these rigs on my bench and simulated most fault conditions. Most times the error report is accurate although sometimes the time it takes to report the fault varies a huge amount.
Having said that, using a rig on a bench is a lot different to in an environment where the board can become damp due to condensation. This can easily produce spurious errors due to the high impedence nature of IC I/O’s on the board.
So first make sure the board is bone dry and clean as Tony advises.
Andy 😀
Re: Indesit wd12uk, w103
andy2 wrote:It is better to change the relay to make sure. At £1 for the part
Andy 😀
Andy, where do you source these relays from – and have you a part number please.
Cheers
Martin.Re: Indesit wd12uk, w103
Hi Martin
These relays are very common I usually get mine from CPC
PN:-SW01454 – 12v
The Heater relay is adjacent to CN1.
Andy 😀
Re: Indesit wd12uk, w103
I have replaced the board for F8 before not knowing the relay can be purchased. What is CPC?
Regards,
Mike.Re: Indesit wd12uk, w103
megawatt wrote: What is CPC?
Regards,
Mike.Hi Mike, you will find them at http://www.cpc.co.uk/
I have just ordered some myself.
Cheers
MartinRe: Indesit wd12uk, w103
These boards are notorious for ‘tracking’. This is where damp builds up on the board causing voltages to jump across the tracks. Better design with tracks further apart would stop this. In time, carbon deposits are formed where tracking has taken place. This then makes the board less and less reliable as the voltages now follow the carbon trail. Brushing the board with a fine wire brush clears the sooty deposits making the board more reliable. Advise the customer to ventilate the kitchen more and hopefully the damp or condensation issue will not return.
Re: Indesit wd12uk, w103
The problem with condensation is it is very difficult to prevent. Even enclosing the board within a plastic bag will not fully stop it. Probably the best remedy is after giving the board a good dry and clean and checking for correct operation to spray it with a coat of clear varnish on the solder side.
The only problem with this is that it makes future repairs difficult and messy.
Re: Indesit wd12uk, w103
Andy2 wrote
The Heater relay is adjacent to CN1
Wd12 uk
With the board connections downwards, components facing upwards, CN1 being far left. Whch is the heater relay, the one to the right of CN1 or the one above it? Had a good board from a scrapper and the machine tests perfectly with it 🙂 , so I’ll be nipping down to CPC tomorrow.
Cheers
Tony C
- You must be logged in to reply to this topic.