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I have an Indesit WE12 washing machine on which it is possible to select a program and watch the timer display count down as normal for a few minutes with nothing else happening (with regards to motor, pump, water intake) then ‘door’ is displayed. I tested the door lock mechanism and it appears ok; neutral is getting from pins 3 to 2 on door closure. I have traced the neutral line from pin 2 of the door latch mechanism and it goes down to the drum heater element then branches off to the motor (and subsequently the pump) and also up to the water intake valves but I cannot detect where it is input to the control PCB. If this wire is not meant to reach the control PCB then how does the ‘door’ indicator get triggered?
I’ve had this machine for a few years and it has been used regularly, only giving me trouble (F04 codes etc) when something got trapped in the drain filter. Recently though I’ve had trouble with the selector switch producing random programs (traced to dodgy contacts on the rotary control switch) and I’ve been told that error code F-02 has been displayed (motor jammed or tachogenerator detached?) although I have not witnessed this. I don’t want to throw the machine out – internally it looks like new – but I am not about to buy expensive parts on an old machine.
Any ideas where to start looking?
Re: Inactive Indesit WE12 washing machine
Error in my fault tracing – its live and not neutral being fed through the the door contacts. Anyhow I see that motorman (Aug28) has asked for help on what appears to be the same problem and the advise is that it could be some sort of computer problem.
Can anyone enlighten me as to roughly how much it would cost to replace the computer?.Machine is MOD: WE12UK
COD: 80 244610101
S/N: 104107276
I have been unable to remove the PCB from its plastic housing and the only markings I can see are on a label attached to this [COD .215006249.00 0109 S/W1.32].Even better if someone could tell me what the pin-out was on this PCB then I might be able to to some further diagnosis but I
fear that this is a trade secret!Re: Inactive Indesit WE12 washing machine
Computer board is p/no C00084331, email to spares@ukwhitegoods.co.uk for prices and ordering. You have to swap the eeprom across from the old board as well.
It is worth getting the board out of its housing – blown tracks are a regular problem on these machines.
For the benefit of future readers, we cannot condone working on the machine “live”.
Regards,
Penguin45.Re: Inactive Indesit WE12 washing machine
Thanks Penguin45 – and I agree with your statement on live working. Although I am doing so I am an electronic engineer to trade and have taken steps to virtually eliminate the risk of electrocution.
I have taken the PCB out for examination and everything looks ok – no sign of burnt tracks or components. I did see what looked to be possible dry joints and resoldered them to no avail. Given the age of the machine and likely high cost of a new control PCB I don’t think it will be cost efficient to repair so, before I drag the machine up to the local dump, I have been thinking of what I could be doing wrong:-
(1) Because I am live working I have removed the input water feeds. I did look for pressure sensors at the water inlets but could only see what I think are three inlet control valves. Could there be a water pressure sensor hidden away somewhere that is preventing the machine from operating?
(2) I have not checked the motor brushes -the machine has given no indication that the brushes were on the way out. If they were worn could this result in a ‘door’ indication? I would have thought an engineering code would be more appropriate (F-02?)
(3) Are there any sensors that could be preventing operation with the lid and/or rear panel off? I’ve looked and can’t see any!
If I do get dragged around to the shops this weekend (i.e. the washing is piling up) can you recommend a reliable make/model that doesn’t cost the earth? Although I haven’t had much bother with my Indesit machine until now I’ve been reading of other people’s problems/frustrations with the Indesit range/support so will go for another make. My wife has suggested a ‘Beko’ because we bought a cheap and cheerful Beko fridge and (separate) freezer about 12 years ago and neither has given us any bother. However, it would be short-sighted to buy a washing machine on this basis only!
Re: Inactive Indesit WE12 washing machine
The motor is the only component which does not bring up a fault code. Worth checking all three circuits through the motor. Water level control is by a diaphram pressure switch – round gadget with a skinny hose running down from it.
To be honest, these aren’t the greatest machines ever built; by the same token neither are the Bekos. Rule of thumb is surely you get what you pay for. Amongst the trade the popular choice at the moment is Bosch – the 1200 spin machine is around the £300 mark with a two year guarantee and is pretty reliable. Zanussi and Whirlpool are perfectly adequate; the best is probably Miele, but you pay.
My personal opinion is that anything under £250 just won’t last, so set yourself a decent budget.
Regards,
Penguin45.Re: Inactive Indesit WE12 washing machine
Thanks again Penguin45 for the info – I will check out the motor tonight just in case but me thinks that because the water pump is not running at the start of a spin cycle (but functional) and there is water in the bottom of the drum that this is more of a control issue.
I would still love to know the logic behaind the ‘door’ indication though!
Re: Inactive Indesit WE12 washing machine
Hi Tom,
I have just been fixing my machine WE12 which was blowing fuses, in tracing the fault I had to trace the wiring.You wanted to know where the juice goes, from the main switch to the door switch the door switch has three connectors, the single red wire is I believe the activation line to lock the door switch and goes to pin 1 of plug CNF, the brown wire connects to the heater changes colour to black goes to motor and pump then to plug CNE pin 4 this is the main feed to the control board that leads to a transformer on the control board and on to what I think is a triac the transformer output is then rectified and smoothed and feeds the control circuitry as far as I could tell, if the contacts in the door switch are bad or the power to the PCB from the red wire trvelling to CNE pin8 you will have a dead machine. The door switch is the safety feature no power can travel enywhere unless the switch is electrically operated from the control board apart from the red wire that is connected to the brown wire on the door switch which activates the control board.
I am not a washing machine engineer I am an electronics person and just decided to fix my own machine I had no circuit diagram unfortunately and had to trace the wiring I hope that the above helps, to be sure of accuracy you can test with an ohm meter with the power disconnected and the plugs on the board unpluged this should confirm the above and also catch any typing error I may have made.
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