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mad_potato.
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February 4, 2009 at 2:49 pm #43150
mad_potato
ParticipantEverything else works apart from the heat. Checked the elements, each shows 40 ohms, checked the thermostats. The one time blow (green dot) had gone (possibly because of me pressing it unknowingly) so I replaced them both. Re-assemble and test, still no heat. I guess it could be the dampness sensor (in the drum) showing nothing is damp (when it is) or some other fault with the controller. Curiously, when you start it, you can hear the relays trip and the ‘heating’ lamp lights for a moment, but almost immediately is extinguised. Any other test I can do? Any other ideas ?
February 4, 2009 at 4:37 pm #276205iadom
ModeratorRe: Hotpoint TDC60 tumble dryer puts out no heat
There is another thermostat inside the door surround, situated inside the top edge.
If that is Ok then it could well be the ‘dryness’ module. Around £70.00 ex vat. 😥
The heater should come on for a short while, even without damp clothes in the drum, it switches off during the short reverse ( anti clockwise ) tumble.
Jim.
February 4, 2009 at 5:07 pm #276206mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Thanks for the prompt reply.
Mmm, got the little fella out (but the loom stayed inside, do I need to remove the whole of the front steel panel to get the stat back in and wired up??)
The door stat is showing closed circuit, does that mean its OK?
February 4, 2009 at 6:17 pm #276207mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
OK, after a bit of a fiddle I got that door sensor back in place. I’m assuming that Closed Circuit is the norm and that I now need to look elsewhere.
If the next thing to check is the ‘dryness’ sensor in the drum (and given that the suggested price is £60) is there anything I can do to check that sensor? As you can imagine, I don’t want to invest £60 in a new one if I don’t have to.
I’ve checked the continuity from the steel sensor pick up band around the drum, all the way to the control box (brown cable) and all that’s OK. It’s completely open circuit from the band to earth (which may not mean anything).
Starting to panic a bit now, the wife has got tonnes of towels to get dry, it’s freezing outside and the radiators are loaded up with all the other stuff a family of 4 needs cleaning/drying. In desperation have checked prices of new ones and we’re into more than £250 so pressing on with a home fix….
February 4, 2009 at 6:46 pm #276208kiddo66
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Are you testing it on sensor dry?
Try testing it on timed dry and se what happens,the empty water light isn,t on is it..February 4, 2009 at 7:39 pm #276209mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Both ‘sensor dry’ and ‘timed dry’, seem to perform the same. On each there is a momentary ‘click-click’ of the relays activating and de-activating at the start, the ‘drying’ lamp flicks on for the fraction of a second this occurs. Then off it goes merrily pushing cold air around.
If I leave it tumbling away with almost dry clothes it eventually gives its little beep-beep to say all done.
I’ve never seen the ’empty water’ lamp come on, even when it was obviously full. I suppose that the water level sensor might be faulty AND the lamp might be faulty, is there any way of testing the water level sensor? And is there a sensor for the condenser or water container being present? It would be sensible to not run the heating if they were missing. (Actually it would be sensible not to operate at all if either of these was missing!)
February 4, 2009 at 8:38 pm #276210kiddo66
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
It is possible to test the water level switch but it is a devil to get at.
You need to srip the side panels off and you will see a micro switch which can be checked for continuity.
There is a test programe for the sensors etc. but you need a test link to get the programme to run.
I think by what you have said that the dryness module is faulty especially when you describe the clicking of the relays.
Have you tested the new stats to make sure they are both closed circuit?
It isn,t unknown for duff parts to be found in new packets.February 4, 2009 at 10:10 pm #276211mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
New stats checked OK, I’ll have a dig for the water level sensor and test it tomorrow. I’m becoming resigned to the prospect of a new circuit board. I’ll have a look on the shop site to see if I can find it.
I’ll let you know how I get on……
February 5, 2009 at 9:48 am #276212mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Water sensor and indicator both working. Looks like I need ‘1702136 – Hotpoint Tumble Dryer Dryness Module’.
If I don’t get any other suggestions, I’ll order one later today (£80!) and keep my fingers crossed it makes a difference.
Cheers for support so far….
February 5, 2009 at 10:45 am #276213garn
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
been out and done a few of these recently
green spot stat gone dryness module buzzing clicking
done the job had a call back 4months later green stat gone again.
module OK.
i would recommend inspection of the float & pump chambers especially if the appliance is up to 3to4 years old the chamber may need cleaning
bit of a job while your at it check the bearings as well it may be worth putting a v4kit on it the same time
and delint the appliance hence it be OK for another to yearsFebruary 5, 2009 at 10:54 am #276214iadom
ModeratorRe: Hotpoint TDC60 tumble dryer puts out no heat
Methinks you are getting a little confused Garn. This machine is a TDC not a CTD.
The TDC does not have a pump, the CTD does not have the green spot stats or a dryness module.
The bearings are less likely to fail as the TDC has proper jockey pulleys and does not need a full V4 repair kit if the rear bearing does fail.
If all the above tests have been done then the dryness module is the likely cause of the problem.
Jim.
February 5, 2009 at 10:58 am #276215garn
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
iadom wrote:Methinks you are getting a little confused Garn. This machine is a TDC not a CTD.
The TDC does not have a pump, the CTD does not have the green spot stats or a dryness module.
The bearings are less likely to fail as the TDC has proper jockey pulleys and does not need a full V4 repair kit if the rear bearing does fail.
Jim. soz mate i think i have snow blindness to yearly in the morning 4me.anotherday off its belting down hear
February 5, 2009 at 11:12 am #276216iadom
ModeratorRe: Hotpoint TDC60 tumble dryer puts out no heat
Still got about six inches of snow from Monday/Tuesday. Snow falling now but very light, roads passable with care.
February 5, 2009 at 2:51 pm #276217mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Let’s hope the weather doesn’t delay the arrival of the mucho expensivo dryness controller, which now on order!
February 6, 2009 at 10:49 am #276218mad_potato
ParticipantRe: Hotpoint TDC60 tumble dryer puts out no heat
Amazing….
Not only did the Whitegoods shop despatch the dryness module yesterday(from Exeter) about 10 minutes after I placed the order, it got out of the South West before they too were snowed in, it got here this morning ….. and the old girl is hot and humming. The tumble dryer is now working with heat as well!
Is it worth keeping/sending the old module back anywhere for a post mortem?
Thanks for all the assistance, I appreciate it, I guess you guys don’t get paid to release your years of experience and I suppose I’ve stopped some local engineer from getting a job. I consider it a debt that I now owe society in general and I’ll do my best to help out someone else.
Still can’t get over the fact that since last Sunday when the fault occured, I’ve ordered spares twice (Sunday and Thursday) over this difficult week and its all been delivered by Friday. Well done Whitegoods.
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