[maverick.uk]

Re: TDWSF83BEP Door Filter Light

OK thanks. Seems like this will remain a project or go to the great scrap yard in the sky. What a sad state our system has come to when we potentially scrap a unit for the cost of a 50p part (manufactured cost of NTC). So so wasteful.

Cheers

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

F06
Heating element NTC error detected

6th Sense and Drying lights lit or flashing

Check wiring to heating element NTC
Check heating element NTC
Clean any fluff or lint from the sensor and surroundings

This is from the error section on the site, however not exactly no sixth senser or drying lights only the door filter light……so would suggest the heater NTC? Although checked already but don’t have specs to compare against…….

Kevin

[maverick.uk]

Re: Hoover OH714d pump not running

Anyone know this? I have a hoover machine with the same fault sat in the garage, was a spare machine, i also thought it may be component on PCB at fault?

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

ok, so the 7 oclock position of dial and 3 pushes of the gentle enters factory test mode:-

So sequence
Push Gentle 3 times then Start button push = Test all lights / displays (push start to advance)
5:01 displayed, Sensor / Dry / End / Anticrease led’s on = testing sensors? (push start to advance)
5:02 displayed, Drying led = cw rotation drum, power to single element Max temp above heater 114°C Max temp Exhaust 66°C, element cut out circa exhaust probe temp 60°C cut in circa 40°C. (push start to advance)
5:03 displayed, Drying / End led’s on = ccw drum rotation, power to both elements, didn’t want to overheat so pushed start button to advance when temp hit 280°C. (push start to advance)
5:04 displayed, Sensing led on = ? no movement or sounds. (push start to advance)
F:06 displayed (ERROR?). (push start to advance)
Machine powers off.

So i guess need to know what F06 means and how this is related to putting on the door filter light?

Cheers

Kev

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Thanks Johnny, I’ll give that a go and report back.

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Thanks for your help, looks like i will have to keep trying on my own as Hotpoint’s answer will be to offer a service engineer.

New machines on sale here
http://www.electricshop.com/hotpoint-td … TM8P8HAQ#b

Cheers

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Hi

So i did some further work at the weekend, air flow all seems good with air being sucked in through the front condenser unit and a good flow out of the back grill that sits across top of water pump, so don’t think it s to do with blocked air flow. I found some service manuals on line (earlier models) and they do have some details on diagnostic modes and sequence of operations, anyone care to help with these?

For these type of machines Whirlpool / Hotpoint / Clones can anyone advise the start up sequence in regard of temperatures? Im guessing its looking for a temperature rise in a certain period of time but not sure! I have inserted temperature probes above heater and now in the exhaust NTC area as well. The Exhaust NTC area only fluctuates between 20 and 40°C is this warm enough?

Thanks

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Thanks Johnny but its not this, there is a proximity sensor for the condenser and machine won’t even start if this is not made, for the door filter that not the case, no sensor that i can find.

Doing some research on the net this Hotpoint is in fact a clone of the Whirlpool unit thats been made for a few years so quite surprised no information available. So far i still don’t know which sensor causes this light to come on or what the programmed logic is looking for. I’m wondering now if the reaction time of the NTC (on top of element) is suspect. From cold the machine cycles through the power up of the element twice before failing and putting on the door light, is the NTC not reacting fast enough to notify the programme module to turned off element and thus overheating. I’m assuming of course this is how the element is cycled (as no information coming to lite at mo) i.e NTc reports change in temp and should inform controller to turn off at a set temp then turn back on again at lower temp, or have i got this wrong and that it is just powered all the time?

I did run machine with door open (switch bypassed temporarilty for a fwew secs) and you can see the element glow behind the inlet to the drum and of course when it decides its too hot it turns it off also.

I also checked air movement, thinking that if not enough air movement then heater will get too hot, again this seems reasonable for the blowers (there are 2 on same motor) that are cycling, paper sticks and holds on inlet and is blown away from exhaust.

Cheers

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

HI All,

So I removed the NTC sensor which is as follows:-

Manufacturer ELTH (that’s interesting as they make stuff for us at work in the fuel injection industry).
Type 279
T200
Date 11/15
Designation? 3111

Set up was in our lab at work in the test oven with wires soldered to spade terminals, results as follows:-

25°C 12.4K
60°C 3.2K
70°C 2.4K
95°C 1.5K
100°C 1.05K
110­°C 0.82K
130°C 0.6K
180°C 0.27K

Test lead resistance 0.020K (insignificant)

Anyone know the specs and tolerance for this device? I can find some details on line for a whirlpool machine but it doesn’t state the type of NTC this suggests at 180°C it should be 0.1K, now normal resistors have tolerances circa 5{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} and this would be way out, but on an NTC i have no idea, anyone?

Specs found online for a whirlpool device

25°C 12.0K
60°C 3.0K
70°C 2.2K
95°C 0.1K (although this looks suspect value in manual)
100°C 0.8K
110­°C 0.6K
130°C 0.4K
180°C 0.1K

My values seem shifted by circa 200 Ohms but this may be down to my device not being the one quoted in the whirlpool manual??

Thanks

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Unfortunately not.

When I get home tomorrow ill try and remove the NTC sensor on the heater to test against temperature.

Still like to know how the system is supposed to regulate heat.

Kevin

[maverick.uk]

Re: TDWSF83BEP Door Filter Light

Evening

ok, so based on some info elsewhere on this site I think my next course of action is to test the sensor resistance properly against known temperatures to build a table 25deg / 60deg etc.

I would like to know how this system works, is the machine supposed to regulate the power to the heater depending on temperature or is it just a relay or some switching transistor that crudely switches on / off to control temperature and thus the speed of response of the sensor is also important.

Thanks

Kevin

[Author]

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