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My cold water fill washing/tumble-dry machine is producing cold wet output. I am not sure if it is the water heater or the drying unit (the box on top of the drum). Last year the clothes did not appear sufficiently dry after a wash and reported the F13 problem. I consulted your forum and subsequently stripped the box and cleaned out all the fluff etc. The machine worked again.
I am now getting a similar problem but no error code so I have tested the forward thermistor (two blue wires and 160° operation) and found it to be open circuit so I have changed it for something similar. The washing is still not drying during the drying cycle but the outside of the heater box is getting to 24-30°.
I rechecked the other thermistor (2 thin black wires) it is measuring 25K? which seems to be high according to your forum.
My questions are these:
1. Is the 25Kohms indicative of a fault as your forum indicates that it should be 0ohms?
2. Could the problem be the cold water heater as the wash is finishing cold?
3. or does anyone have another suggestion?Mike
Re: Hotpoint WD860 not hot
The forward ‘thermistor’ is actually a cut out thermostat, not a thermistor. 😉
The reading on the thermistor is fine, you are misreading something.
If you had been rinsed four times in cold water at the temperature it comes out of the tap in winter you would also be very cold and wet. The wash heater is not used for the rinses.
It sounds like it may be blocked again or the fan is failing.
If you clean out the fluff filter at the back you should cut out the small gauze mesh windows, remove them completely.
Re: Hotpoint WD860 not hot
I have rechecked the resistance of the thermistor and it is definitely 26Kohms which is considerably more than the 20ohms reported in a previous forum conversation with iadom (on 18th May 2009 11:20) – so no misreading but lots of caution. incidently, I also measure 48ohms for the fan coil and 40ohms for the heater which roughly align with iadom’s figures from that same forum entry.
As you are indicating that it won’t be the water heater, then I will confirm that the fan really is spinning and then open the box to check for other blockages and make the changes you advise.
Mike
Re: Hotpoint WD860 not hot
I have run another drying cycle but cannot completely verify that the fan is working. It appears to be exhibiting a high pitched whine indicative of spinning; but how do I test it in order to obtain a conclusive result (I do not have a maintenance schematic so I am not sure what voltage to apply)?
I note that the temperature of the surface of the box rises to 56+ degrees – can I assume that ths is normal?
Finally, I have also opened the box, which is clean of fluff, but cannot find any gauze windows? both the inlet and outlet air vents are large and clear.Mike
Re: Hotpoint WD860 not hot
The gauze I refer to sits right at the back, accessible once you have removed the heater box. It usually has a small grey plastic hose attached. lift it out and cut out the gauze windows.
Whilst you have the heater box off, open it and check for free spinning fan.Your first post says that you read the thermistor resistance as Oohms. 😉
It should be ‘around‘ 20kohms at 20C, 25 to 26kohms is quite acceptable. If the cut out failed you either have a blockage or a faulty fan. If you look very closely at the tiny end of the fan motor shaft you can see if it is turning or not.
Picture of filter attached.
Re: Hotpoint WD860 not hot
I have removed the box completely but there is no pipe and gauze as described or pictured. There is only one pipe at the back of the unit which is offset by a couple of centimetres towards the centre of the machine and a couple of centimetres down. It enters from the rear, between the back panel and drum and will be very difficult to manipulate if it is the ‘filter pipe’. It appears to come from the soap dispensing unit on the other (right hand) side of the machine which junctions with a blue cylinder (like a capacitor) and the cold water inlet. The air chamber feeding the heater box appears to arise from an encasement around the drum? Where should the other end of your ‘filter pipe’ go? can I send you a photo?
I see my confusion between TOC and Thermistor. If I am learning correctly, my TOC is measuring 0ohms and my thermistor measures 26Kohms. the latter incidently, reduces to 10Kohms when dropped into hot water – as you described for someone else in another fix I found for dec 2014. So I guess its ok.
I tried to check the fan motor on the last test cycle. I thought it was ok, but I will check it again while you are digesting the above.
Mike
Re: Hotpoint WD860 not hot
Perhaps this picture will give you a better idea of the position of the filter, it just lifts out. On some machines the hose to filter was removed and only the condensor flushing hose was fitted. The filter was still installed though.
Re: Hotpoint WD860 not hot
I marked the fan spindle and note that it has not been rotating. Could this alone have caused my problem? what’s the part number?
I checked the machine against your picture. I have 374(hose) but not 373 (hose) or 372 (Filter). So itlooks as though I have the version with no 372 (filter) and an engineer has, in the passed, removed the filter. Should I replace the latter as well?
Mike
Re: Hotpoint WD860 not hot
Don’t worry about the filter, if it is not there so much the better, a constant source of problems.
A faulty fan would give exactly the problems you have, assuming of course there is a feed and return to the motor.
Two different fan motors fitted, see if you can pick the bones out of this picture.
Re: Hotpoint WD860 not hot
The label on the side of the fan reads as follows:
PLASET – ITALY
P/N 72635
230V AC-50HZ
40W-CLH 04-2006does that tellyou anything?
Re: Hotpoint WD860 not hot
I am now trying to take the fan out of the heater box; the locking nut on the blade side of the spindle has come free but there is a smooth circular ‘nut/washer’ that is holding the blades in place. Do you know if it screws off or just pulls off? or else, how it is removed?
Mike
Re: Hotpoint WD860 not hot
Label means nothing for parts ID, serial number is all important.;) The fan just pulls off, some of the earlier metal fans did work down the shaft and jam on the body of the housing, it should spin freely. The nut screws clockwise to release BTW.
Re: Hotpoint WD860 not hot
Fan is removed but does not have any concealed serial number.
The Washing machine has serial No 606270041 WD860P.There is also a sticker on the back of the washing machine that gives other numbers: a barcode – WD860P 54270041 and printed 31135 WD860P
At which point I for one am well confused.
The fan unit is secured by 4 screws 1″ apart, therefore if either/any of the fans you can profer matches these fixing dimensions and the electrical spec in my previous post, it is worthy of further investigation as a replacement unit.
Mike
Re: Hotpoint WD860 not hot
it is the washing machine serial number my picture refers to. Virtually no parts have serial numbers on them, all modifications or changes in spec are related the the appliance serial number, date code or commercial code.
From that you will deduce that the fan motor for your machine is a C00098711.
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