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Hi Andyjawa – many thanks for this detailed reply. Once I get round to it (very busy for the next few weeks…), I’ll check out your points and hope it’s just a grease job or new belt.
Hi – sorry about the very (very!) long delay in responding.
E-Nr: WAE24369GB/40
FD 9404 601700The sound went away for subsequent washes, so the urgency went out of the situation – but now it’s come back again after going “on holiday” for the Summer (the sound, not me). Same as before – while it’s in a wash or spin cycle, it sounds normal, it mostly makes this squeak when doing a slow rotation between wash/spin modes and also after a wash when I rotate the (full or empty) drum by hand – but if I do this before a wash, there’s no unusual sound. I just noticed that it was making the sound while coming up to speed on a spin cycle, but once it was up to normal spin speed, I didn’t hear it.
It doesn’t seem to be associated with how much I put in the machine – but I wouldn’t swear to that.
Sometimes, it doesn’t make the noise at all for the whole duration of a cycle – fault finding is so much easier when the fault isn’t intermittent!
Assuming that you mean a Megger (or similar high voltage – by which I mean something ~500VAC) insulation tester and not a Megger-brand multimeter – that would give a rather more definitive answer than my cheapo Halfords multimeter! Since I can buy a fairly decent new dishwasher for about the price of a bottom-end Megger tester (the MIT310 is one I’ve seen advertised), and this would likely be a tool I would probably use once, I’m not going to be doing that test – but many thanks for the pointer (I’ve spent some time reading about high- and low-voltage testing for insulation integrity since I read your post – very educational). Sometimes I have to admit defeat in my struggle against the throwaway society…
Again, thanks for spending time trying to find out the values for the thermistor. If nothing else, it makes my more annoyed that an expert can’t get the information!
Hi
Checked heater to earth etc – no obvious faults there – both earth to live and earth to neutral give open circuit values on my multimeter.
TBH, if anyone here could give me the expected values for the thermistor at different temperatures I’d expect them to be different from what I have measured. Since the cooler wash appears to work okay but the hotter cycles don’t, that’s where my attention would tend to focus at this point – but if I knew the answer I wouldn’t be asking…
One thing I find incredibly frustrating is that none of the spares suppliers will provide values – they are perfectly happy to sell you the component, but if you open the packaging to test the values (and it turns out your currently installed item is in spec) then they won’t refund you for your unused purchase. If it only cost a tenner or so, I’d take the chance, but since these cost 40- 60 quid (depending on supplier, time of day, phase of the moon etc) I’m not willing to chuck my cash down the swanee on the off-chance this is the issue.
Thanks again for this. Unfortunately the values for thermistors vary for different manufacturers/appliances – so the Logik values are probably not that helpful, except to show that they also use an NTC thermistor.
The pre-rinse doesn’t use hot water, so as you say, it’s not even in the circuit.
In the quick wash the water is warm – I said originally it was 35C, checked it yesterday and it was 24C in the middle of the cycle and at the end – probably should be closer to 35 ;-). The quick wash is taking 2.5h, which is not that quick!
£175 for a heater unit is ~1/3 the cost of a Which? best buy dishwasher – so if it’s a case of a new heater for an old dishwasher that might only last a few more years (if it can be fixed!) or more landfill, I’m afraid it will be the latter.
Many thanks for this.
As a quick Q – does anyone here know off-hand what the resistance of the thermistor should be at different temps for this dishwasher? Sometimes these items can fail gradually and still give different resistances at different temperatures, just not within spec.
To your points:
Are you sure the impellor jug has been fitted the right way around as per its direction arrow?
Almost 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} sure – fitted the same way round as the old one which lasted > 10 years, and occasionally after fitting the new one it ran properly on the normal cycle. I’ll have a look this weekend (I usually mark the flow arrow with a permanent marker to make it easier to see).Check the wash motor.
It washes on the quick cycle (contents on both baskets are wet if I open the door, and are cleanish at the end of the programme), so I’d be surprised if it’s this (wouldn’t be the first time I’ve been surprised, though). I can here it sloshing around in this (and the pre-rinse cycle if I run that) when it’s not decided to go into its pump out/refill sulk…Worth my checking heater to earth fault – I’ll do that this weekend. If there’s a fault in the heater rather than just a connection issue, I think it’s time for a new machine (goes completely against the grain for me!) – the price of a replacement heater is a hefty fraction of the cost of a new machine.
