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Hello – I recently replaced the sump hose on my Bosch Classixx 6 1200 Express (WAE24164GB/22) (a rat had chewed through the old one!). Since then, however, the wash cycles have refused to start. The water enters the machine for a few seconds and then shuts off. The drum does not revolve and then a little later on lights flash and the machine beeps.
I have checked:
The mains pressure – fine.
The inlet filter – clean.
The contacts on the inlet valve – with a multimeter, these seem OK.
All pipes associated with the sump hose.My main suspect is the water level sensor but I am not completely sure that this is the problem for the following reasons.
I took the back, rubber diaphragm and plastic switcher off the sensor and everything inside is bright and shiny with no hint of corrosion – the copper contact strip appears to work OK.
I tested the contacts with a multimeter and, although I did not get a steady reading, I did get a pulse.
The rinse and prewash programmes work normally and the machine lets in the correct amount of water. In the case of the prewash, however, the machine will not move on to the main programme and eventually the lights flash.
I have tried the 6/7 spin hold reset but I’m not sure that this has worked. As soon as I hold the spin button the red lights just scroll up and down the various spin cycles.I’m completely stumped on this one now and I would be grateful if anyone could give me advice on where the problem might lie and how I can proceed further.
Thank you.
are the inlet valve coils ok ?
as a test try adding water when it goes quiet and see if you can get enough water in to let it move on
Dave
Hello and thank you for your replies. I tested the coils as suggesed but the cycle did not start.
And errr…yes, I’m afraid that I did tip the machine upside down when I replaced the hose.well that a big no no
Iadom is possibly on the right track, you may have got water in the electronics
suggest you remove the board and look for damage
Dave
In over 45 years in the trade I never once turned any appliance that uses water upside down. In fact if a customer phoned me and told me that had done that I would politely refuse the job.:rolleyes:
Oh dear. Well I’d no idea about washing machines, not allowed near it even to do the washing normally.
Is there anything I can do to rescue it? If someone with that much experience won’t touch it then it doesn’t sound very hopeful.you can check for damage. that would be my first thought
when you said “The rinse and prewash programmes work normally” was the motor turning ok and look like it was normal
Dave
there is also a second hand panel on ebay for sale. there are 3 models of the WAE24164GB and all take the same panel part number so should work ok
Hello – thanks for that, your help is very much appreciated. To answer your question, as far as I could tell, the rinse and prewash appeared to be working normally. The machine was letting in water at intervals, the drum was rotating this way and that, it drained OK and, in the case of the rinse, went straight on to the spin, which also seemed fine.
I’ll do a bit of research tonight to try and see how to get at the control panel and then, hopefully, have a look at it tomorrow. Thanks also for the tip about the PCB, I have it in my watch list now. – I’ll let you know how I get on. Regards, JohnHello again.
Well, I got the control panel off, took out the two circuit boards and examined them. I wasn’t really sure what I was looking for but there were no obvious signs of damage such as blackened or melted parts – they looked OK to me (I took photos). I put it all back together again but (apart from the fact that I forgot to line up the control knob and it now operates at 90 degrees to the pointer!) the machine functioned as before. That is, the prewash, spin, drain and rinse programmes operated normally but the wash cycles shut off the water after a few seconds and then stop.
I wonder if there is anything else I can do to try and pinpoint and perhaps remedy the problem. The machine is mechanically sound and I would be loath to to chuck it out.
A random thought, but does it heat during the prewash? I ask as all of the other programmes that still work don’t need the heater and I’m wondering if the wash programme is checking the heater circuit before progressing.
I struggling to think of any other reason why some programmes work and others do not.Hello – thank you for that. I’ll check the prewash as suggested but, since the cold wash programme doesn’t work, I’m not very optimistic.
pre wash uses a different valve in the soap draw and as far as i know it does not heat which is why i suspected valves or the control gear for them on the timer
you could try an experiment. select a wash. press go, then fill the machine by hand through the drawer. if you can get the water height to the door, then the unit, if its a valve problem, will burst into life and complete the rest of the wash cycle
Dave
Thank you, I’ll try that now. I just ran the 30o programme with prewash. The machine filled and ran – I put my hand against the door and it felt warm so I think that it did heat. The drum drained but the draining noise continued for a while after the drum emptied and then I got the beeps and flashing lights.
Right, OK. I poured a couple of jugs into the machine, set it to 30o wash again and then poured more in as it briefly filled. It went straight on to wash programme. I haven’t waited for the programme to complete but it’s chugging away at the moment. So it looks like a problem with the inlet valve then? I did previously test the terminals on these with a multimeter and got a decent reading and I also poured water into the machine by hand – but only after the valve had shut off.
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