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Looking for solution for delayed start of Tumble Dryer

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pepper

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Sep 17, 2012, 8:35:19 AM9/17/12
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I'm after some suggestions for delaying the startup of our White Knight condensing tumble dryer, (in order to take advantage of economy 7 electrickery).
A simple plug in time switch won't work as the dryer has a momentary action push switch that has to be pressed to start the drying cycle. I see from other Google results that wedging in the start button, (and using a timer), also doesn't work as the unit then doesn't switch off when the automatic dryness detector determines that the clothes are dry, (although to be honest I've not tried that myself).
Crucially, the solution needs to be SWMBO compatable.
Any ideas?

Toby

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Sep 17, 2012, 9:05:03 AM9/17/12
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If you start the dryer, then power it off at the socket, does it resume,
or still need the button pressed?

--
Toby...
Remove pants to reply

phil...@gmail.com

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Sep 17, 2012, 10:29:12 AM9/17/12
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Line drying, more energy efficient ;)

Buy a new tumble that doesn't have a start switch and Ebay the one you
have?

Heath Robinson job involving a solenoid and a simple circuit?

Philip

Lobster

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Sep 17, 2012, 10:38:56 AM9/17/12
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On 17/09/2012 13:35, pepper wrote:
> I'm after some suggestions for delaying the startup of our White Knight condensing tumble dryer, (in order to take advantage of economy 7 electrickery).

Implying, presumably, that you want to use the tumble dryer either when
you're asleep in bed, or away from the house.

Given that AFAIK tumble dryers, along with a few other appliances like
washing machines and dishwashers, are high on the list of causes of
house fires.... is that a good idea?

David

Message has been deleted

Tim+

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Sep 17, 2012, 11:16:45 AM9/17/12
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Chris Hogg wrote:
> Most time switches have an override button. Press it. Set the tumble
> dryer going. Immediately press the override button on the time switch
> again to set it back to normal timed switching. Next morning: dry
> clothes.
>
> That's what we do with both the washing machine and the dish washer
> for Economy & use.

Might work but I think most appliances like this use a latching relay that
will "unlatch" once the power is interrupted. Consequently, it'll still
need the start button re-pressed.

I think the only way will be to hack into the dryer's wiring.

Tim

Toby

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Sep 17, 2012, 11:55:57 AM9/17/12
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A circuit that will operate a relay wired across the current switch for
a couple of seconds after power up (Probably after a short delay) would
work - maybe with a switch to enable/disable it "Manual and Auto" - The
power button may be more than just a single press to make switch though.
Message has been deleted

Roger Mills

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Sep 17, 2012, 5:38:07 PM9/17/12
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On 17/09/2012 16:16, Tim+ wrote:
> Chris Hogg wrote:

>>
>> Most time switches have an override button. Press it. Set the tumble
>> dryer going. Immediately press the override button on the time switch
>> again to set it back to normal timed switching. Next morning: dry
>> clothes.
>>
>> That's what we do with both the washing machine and the dish washer
>> for Economy & use.
>
> Might work but I think most appliances like this use a latching relay
> that will "unlatch" once the power is interrupted. Consequently, it'll
> still need the start button re-pressed.
>
> I think the only way will be to hack into the dryer's wiring.
>
> Tim

How about a programmable robot to press the button?
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Fred

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Sep 18, 2012, 3:25:54 AM9/18/12
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On Mon, 17 Sep 2012 15:38:56 +0100, Lobster
<davidlobs...@hotmail.com> wrote:

>Given that AFAIK tumble dryers, along with a few other appliances like
>washing machines and dishwashers, are high on the list of causes of
>house fires.... is that a good idea?

I've heard stories of tumble dryers catching fire, I can see how they
could overheat, but I didn't realise dishwashers and washing machines
did too. What goes wrong with them? An electrical fault?

I think I have the same dryer as the OP and I did use E7 for the
washing machine and dishwasher and thought about using E7 for the
tumble dryer too but it was the thought of fire whilst I was in bed
that stopped me pursuing this.

I have heard of fridges starting fires and that is a worry as you
cannot switch them off over night or when you go out.

OTOH how many white goods catch fire? If there were too many, they
would not be sold.

Fred

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Sep 18, 2012, 3:30:52 AM9/18/12
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On Mon, 17 Sep 2012 16:16:45 +0100, "Tim+"
<timdow...@nospampleaseyahoo.co.uk> wrote:

>Might work but I think most appliances like this use a latching relay that
>will "unlatch" once the power is interrupted. Consequently, it'll still
>need the start button re-pressed.

Whilst my washing machine and dishwasher do "remember" where they were
before a power cut and carry on when the power is restored, my tumble
dryer does not and I think I have the same/similar model of tumble
drier to the OP. Perhaps it is a safety feature to prevent it
switching on unattended after a power cut?

Fred

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Sep 18, 2012, 3:36:21 AM9/18/12
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On Mon, 17 Sep 2012 16:55:57 +0100, Toby <to...@altppantshuk.co.uk>
wrote:

>A circuit that will operate a relay wired across the current switch for
>a couple of seconds after power up

Hi,

I thought about doing exactly this to my WK tumble dryer. I was going
to put a relay across the terminals of the push switch and have the
time switch activate the relay briefly when I wanted the dryer to
start.

That way you could still use the switch to start the dryer manually.

But I never got round to doing it ;(

Fred

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Sep 18, 2012, 3:40:06 AM9/18/12
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On Mon, 17 Sep 2012 05:35:19 -0700 (PDT), pepper
<mike.p...@googlemail.com> wrote:

>I'm after some suggestions for delaying the startup of our White Knight con=
>densing tumble dryer, (in order to take advantage of economy 7

I think I have the same/similar model. How do you find it?

Now we have moved house it is in a small utility room, so although the
condenser removes the dampness from the air, sometimes it gets too hot
and I find myself switching on the extractor fan, which seems to
defeat the purpose of having a dryer that is not ducted!

If it is drying towels I sometimes find the condenser cannot cope and
the room does become damp and the fan goes on again.

I hear you can now get heat pump dryers. Are they much cheaper to run?
I might look into those when I need a new one.

Paul D Smith

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Sep 18, 2012, 3:50:10 AM9/18/12
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"Lobster" <davidlobs...@hotmail.com> wrote in message
news:9zG5s.298890$8e5.1...@fx27.am4...
Good point but I've been doing this (starting at night for Eco-7) for 15
years now with no problems. BUT I'm a stickler for cleaning out all the
filters and vents regularly (filters, before every single dry!). I've also
got the dryer at the rear of the house in an extension with smoke and fire
detectors between it and the nearest bed room. Did I mention that I'm a
light sleeper too?

Paul DS.

meow...@care2.com

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Sep 18, 2012, 4:36:03 AM9/18/12
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On Tuesday, September 18, 2012 8:25:57 AM UTC+1, Fred wrote:
> On Mon, 17 Sep 2012 15:38:56 +0100, Lobster
>
There are 69,000 house fires a year in the UK

I don't see much point in tumble dryers. Most other methods of drying use a small fraction the energy and don't damage clothes.


NT

Roger Mills

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Sep 18, 2012, 5:27:40 AM9/18/12
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Also, many washing machines and dishwashers have built-in timers to
allow a delayed start to take advantage of off-peak tariffs. Surely,
manufacturers wouldn't do this if this was a *serious* fire risk.

Lobster

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Sep 18, 2012, 5:47:59 AM9/18/12
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On 18/09/2012 08:25, Fred wrote:
> On Mon, 17 Sep 2012 15:38:56 +0100, Lobster
> <davidlobs...@hotmail.com> wrote:
>
>> Given that AFAIK tumble dryers, along with a few other appliances like
>> washing machines and dishwashers, are high on the list of causes of
>> house fires.... is that a good idea?
>
> I've heard stories of tumble dryers catching fire, I can see how they
> could overheat, but I didn't realise dishwashers and washing machines
> did too. What goes wrong with them? An electrical fault?

Dunno, but washing machines and tumble driers are flagged here:
http://www.esc.org.uk/stakeholder/policies-and-research/statistics/ (way
behing "cooking appliances", which is no surprise)

And St Helens Fire Station watch manager Jim Brammeier says "We advise
people not to leave tumble dryers, washing machines and dishwashers
running while they are out of the house - or at night or while they are
sleeping."
http://www.sthelensreporter.co.uk/news/local/stark-warning-following-tumble-dryer-blaze-1-4667449
So there... :)

And Which? concurs, so it must be true... in seriousness, that link also
mentions that they are most likely to catch fire due to faults as
opposed to misuse or accident - as is the case with most cooking
appliance fires. That's the factoid which I find most relevant.

David



dennis@home

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Sep 18, 2012, 5:57:20 AM9/18/12
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"Lobster" <davidlobs...@hotmail.com> wrote in message
news:poX5s.271266$Up5.1...@fx06.am4...

> And Which? concurs, so it must be true... in seriousness, that link also
> mentions that they are most likely to catch fire due to faults as opposed
> to misuse or accident - as is the case with most cooking appliance fires.
> That's the factoid which I find most relevant.

All that shows is that its harder to abuse some appliances than others.
It would be pretty obvious that an error with a cooker is more likely to
cause a fire than an error with a washing machine.
Its typical of Which to state the bleeding obvious IME.

tony sayer

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Sep 18, 2012, 6:16:03 AM9/18/12
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In article <poX5s.271266$Up5.1...@fx06.am4>, Lobster <davidlobsterpot6
0...@hotmail.com> scribeth thus
>On 18/09/2012 08:25, Fred wrote:
>> On Mon, 17 Sep 2012 15:38:56 +0100, Lobster
>> <davidlobs...@hotmail.com> wrote:
>>
>>> Given that AFAIK tumble dryers, along with a few other appliances like
>>> washing machines and dishwashers, are high on the list of causes of
>>> house fires.... is that a good idea?
>>
>> I've heard stories of tumble dryers catching fire, I can see how they
>> could overheat, but I didn't realise dishwashers and washing machines
>> did too. What goes wrong with them? An electrical fault?
>
>Dunno, but washing machines and tumble driers are flagged here:
>http://www.esc.org.uk/stakeholder/policies-and-research/statistics/ (way
>behing "cooking appliances", which is no surprise)
>
>And St Helens Fire Station watch manager Jim Brammeier says "We advise
>people not to leave tumble dryers, washing machines and dishwashers
>running while they are out of the house - or at night or while they are
>sleeping."


We had a Hotpoint dishwasher start smoking some years ago, the back of
it was glowing red. It went outside faster than our cat spying a mouse..

Wouldn't give that make house room anymore!...


>http://www.sthelensreporter.co.uk/news/local/stark-warning-following-tumble-
>dryer-blaze-1-4667449
>So there... :)
>
>And Which? concurs, so it must be true... in seriousness, that link also
>mentions that they are most likely to catch fire due to faults as
>opposed to misuse or accident - as is the case with most cooking
>appliance fires. That's the factoid which I find most relevant.
>
>David
>
>
>

--
Tony Sayer




The Other Mike

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Sep 18, 2012, 9:40:55 AM9/18/12
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On Tue, 18 Sep 2012 11:16:03 +0100, tony sayer <to...@bancom.co.uk> wrote:


>We had a Hotpoint dishwasher start smoking some years ago, the back of
>it was glowing red. It went outside faster than our cat spying a mouse..
>
>Wouldn't give that make house room anymore!...

Ditto, if you want your food cooking choose a Hotpoint frost free fridge
freezer.


--

SteveW

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Sep 18, 2012, 12:49:01 PM9/18/12
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On 18/09/2012 08:25, Fred wrote:
Indeed. Friends of ours had their home entirely gutted, all their photos
and other irreplaceable possessions destroyed and their dog killed a few
weeks ago by a fire started by a fridge/freezer. It was a Beko and I
don't know what model it was, but do know that a year or more ago,
hundreds of thousands of Bekos were found to be likely to cause a fire.

> OTOH how many white goods catch fire? If there were too many, they
> would not be sold.

I don't personally know anyone else it has happened to.

SteveW

SteveW

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Sep 18, 2012, 12:51:23 PM9/18/12
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The point of them is that when you are two adults with three young
children and it's been raining all summer, but is too warm to put the
radiators and gas fire on, you can still get clothes and uniforms washed
and dried in time for when they are needed!

SteveW

charles

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Sep 18, 2012, 12:55:01 PM9/18/12
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In article <k3a8lr$fvb$1...@dont-email.me>,
one of my music class mates had her dishwasher catch fire overnight.
Luckily, there was a smoke alarm in the kitchen and they managed to put out
the fire before it did too much damage.

--
From KT24

Using a RISC OS computer running v5.18

alan

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Sep 23, 2012, 2:24:12 AM9/23/12
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On 17/09/2012 16:55, Toby wrote:

On my _washing_ machine, which now has the compulsory switch off if not
in use, it's one push of a button to turn on the power, a press of
another button to start the cycle. After applying power it may be a
sequence of events that is required.

I have a battery charger (for a drill) that's even worse. It only
activates when inserting the battery. Once charged it stop charging
forever, but still runs hot. The battery will start self discharging.
Turning the mains off/on doesn't start a charge cycle so an external
timer cannot be used to force a periodic top-up.

--
mailto:news{at}admac(dot}myzen{dot}co{dot}uk

meow...@care2.com

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Sep 23, 2012, 4:07:55 AM9/23/12
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On Tuesday, September 18, 2012 5:51:21 PM UTC+1, SteveW wrote:
Since one can do that trivially with no tumble dryer, it does seem to leave them pointless.


NT

phil...@gmail.com

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Sep 23, 2012, 5:46:47 AM9/23/12
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And how would you do that when it is raining outdoors and you have
very little space indoors and do so without causing damp?

Big Ginger

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Oct 30, 2016, 10:44:03 AM10/30/16
to
replying to Toby, Big Ginger wrote:
I thought of wedging the on switch as well, and setting the timer to switch
off after say 1 hour or 1/2 hour. but is it dangerous to wedge the switch on?

--
for full context, visit http://www.homeownershub.com/uk-diy/looking-for-solution-for-delayed-start-of-tumble-dryer-834509-.htm


dfc df xdfc dsfds

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Feb 1, 2023, 9:49:23 AM2/1/23
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We have the same problem with our white knight drier. We wedge it with a matchstick and have it on a timer. It works perfectly. We do have a mains smoke alarm in the room where the drier is and don't leave the house if it is on. White Knight has no reported incidents of driers catching fire, which is why we bought this particular model.

P.S.
Why, oh why can't people stick to the point.

GB

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Feb 1, 2023, 10:51:43 AM2/1/23
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This issue was raised 10 years ago. Nowadays, there are smart dryers
that don't need matchsticks wedged into the switch.


SteveW

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Feb 1, 2023, 11:38:42 AM2/1/23
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You don't need a smart dryer. Many much more basic dryers now feature a
delayed start option - take take advantage of off-peak electricity rates.

Brian Gaff

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Feb 2, 2023, 4:22:46 AM2/2/23
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Ah 2016. Maybe his house has burned down by now.

I know many washing machines have timer starts on them. Mine is not
accessible to me though as its on an lcd screen. I'd have thought that you
might be best getting a new model containing this feature.

Brian

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Brian Gaff

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Feb 2, 2023, 4:28:51 AM2/2/23
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Yes if you try this on many of the lcd devices, the minute you turn off the
mains switch, you lose any programming and the start button remains off.
Only the older or very chap mechanical ones respond to the external timer
trick, and as has been said a more modern device has it built in, though I
do wish makers of domestic gear could make a simple fis so blind people
could use their devices. Just a different number of bleeps as you select
things is enough.
Brian

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Rob Morley

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Feb 4, 2023, 11:30:15 AM2/4/23
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On Thu, 2 Feb 2023 09:28:43 -0000
"Brian Gaff" <brian...@gmail.com> wrote:

Nowadays you should be able to control any domestic appliance with a
voice app on a phone, the technology is available so cheaply. All the
necessary processing power and connectivity is in the phone, it just
needs a ESP32 or similar in the appliance. We should have microwaves
that set themselves by scanning the food packet, and washing machines
that scan care labels, and fridges that manage recipes and shopping
lists, not just for the Gadget Show but in all except the very cheapest
appliances.

Andy Burns

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Feb 4, 2023, 11:40:44 AM2/4/23
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Rob Morley wrote:

> We should have microwaves that set themselves by scanning the food
> packet, and washing machines that scan care labels, and fridges that
> manage recipes and shopping lists

Add AI, then all these appliances can tell you how to live your life ...

Rob Morley

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Feb 5, 2023, 9:27:14 PM2/5/23
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On Sat, 4 Feb 2023 16:40:36 +0000
Andy Burns <use...@andyburns.uk> wrote:

> Add AI, then all these appliances can tell you how to live your
> life ...

They could do a better job than the people doing it at the moment.

RYAN

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Jun 3, 2023, 9:15:07 PM6/3/23
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I have a Beko Dryer. Very basic model with a time dial, start button and heat setting button.
I have a timer plugged into the plug with the timer set to turn on the dryer when eco 7 cheap rate Starts.
The timer I use has one of them switches which can either make the timer be on all the time, or set to turn on and off at the preset time.

Follow these steps and it might work for your dryer.
1) Flick the little switch on the timer to the always on position.
2) Load the dryer with your clothes and close the door.
3) Turn the timer dial to 0 mins (basically the off setting).
4) Press the start button for about 1 or 2 seconds, you will hear an electric buzzing sound, (this is the start capacitor charging up ready to start the motor).
5) Flick the little switch on the timer from always on to timer mode.
6) Now the dryer has no power because it’s not the right time for cheap electricity, turn the time knob to the amount of time you want to dry your clothes for. I normally just put it to 1 hour.

Nothing will happen, but as soon as the cheap electric rate starts and your timer send power to the dryer, it will automatically turn the dryer on, it will just automatically start because the capacitor is charged up and ready to go.

Note, if you do all the above steps, and then open the door to maybe add more clothes, one you open the door, for some reason, the capacitor drains the power and if you close the door again, it won’t auto start, you’ll need to complete the above steps again.

--
For full context, visit https://www.homeownershub.com/uk-diy/looking-for-solution-for-delayed-start-of-tumble-dryer-834509-.htm

Jeff Gaines

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Jun 4, 2023, 3:25:27 AM6/4/23
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On 04/06/2023 in message
<17654fbbdaca4fcf$1358$525944$cbd3...@news.newsgroupdirect.com> RYAN wrote:

>Nothing will happen, but as soon as the cheap electric rate starts and
>your timer send power to the dryer, it will automatically turn the dryer
>on, it will just automatically start because the capacitor is charged up
>and ready to go.

Presumably people living in flats, terrace houses and semis will have the
courtesy not to make this level of noise in the middle of the night.

--
Jeff Gaines Dorset UK
There are 3 types of people in this world. Those who can count, and those
who can't.

The Natural Philosopher

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Jun 4, 2023, 3:47:44 AM6/4/23
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On 04/06/2023 08:25, Jeff Gaines wrote:
> On 04/06/2023 in message
> <17654fbbdaca4fcf$1358$525944$cbd3...@news.newsgroupdirect.com> RYAN
> wrote:
>
>> Nothing will happen, but as soon as the cheap electric rate starts and
>> your timer send power to the dryer, it will automatically turn the
>> dryer on, it will just automatically start because the capacitor is
>> charged up and ready to go.
>
> Presumably people living in flats, terrace houses and semis will have
> the courtesy not to make this level of noise in the middle of the night.
>
I sleep above my dishwasher. It makes less nose than the central heating
boiler.
As do the washing machine and tumble drier.


--
In todays liberal progressive conflict-free education system, everyone
gets full Marx.

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