Well, one of the more plausible explanations for my Dysons odd behaviour
(namely dying within seconds of coming off charge but being €œrestored€� to
normal running duration by recharging for just 5 seconds back on the
charger) was that poor connection between the battery and the handset might
be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers but
its made no difference. Im really puzzled by this behaviour. I did
wonder if it was just €œpretending€� to have recovered so having vacuumed the
hearth, I carried on with the sitting room, the hall and then the stairs.
By then I was getting bored but it seems to have plenty of capacity.

I dont really buy the €œdead/dying cell€� theory or the €œlow charger
voltage€� theory as I cant see how either of these could cause this odd
behaviour.

Seems to be that the €œbattery charge management€� chip is getting its
knickers in a twist and cutting the battery off at too high a voltage and
is getting €œreset€� when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it its
not a huge problem but it is curious.

Tim

--
Please don't feed the trolls

Pamela wrote:
On 17:03 27 Dec 2019, Tim+ wrote:

Well, one of the more plausible explanations for my Dysons odd
behaviour (namely dying within seconds of coming off charge but being
€œrestored€� to normal running duration by recharging for just 5 seconds
back on the charger) was that poor connection between the battery and
the handset might be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers
but its made no difference. Im really puzzled by this behaviour. I
did wonder if it was just €œpretending€� to have recovered so having
vacuumed the hearth, I carried on with the sitting room, the hall and
then the stairs. By then I was getting bored but it seems to have plenty
of capacity.

I dont really buy the €œdead/dying cell€� theory or the €œlow charger
voltage€� theory as I cant see how either of these could cause this odd
behaviour.

Seems to be that the €œbattery charge management€� chip is getting its
knickers in a twist and cutting the battery off at too high a voltage

and is getting €œreset€� when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it
its not a huge problem but it is curious.

Tim

How long does the Dyson work for after you have give the battery a 5
second charge?

Long enough to vacuum the hearth, the sitting room, the hall and the
stairs.


If it's long-ish then maybe the 5 second charge is resetting a trip switch
in the battery management.

Bravo! Youve managed to repeat what I said. Got anything new to add
though?

Tim



--
Please don't feed the trolls

Could somebody have replaced the battery at some time with a non standard
one?
It reminds me of those in cartridges that spuriously say they are empty
when they are not. There is just too much tech being used these days.
Brian

--
----- --
This newsgroup posting comes to you directly from...
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Note this Signature is meaningless.!
"Tim+" wrote in message
...

Well, one of the more plausible explanations for my Dyson's odd behaviour
(namely dying within seconds of coming off charge but being "restored" to
normal running duration by recharging for just 5 seconds back on the
charger) was that poor connection between the battery and the handset
might
be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers
but
it's made no difference. I'm really puzzled by this behaviour. I did
wonder if it was just "pretending" to have recovered so having vacuumed
the
hearth, I carried on with the sitting room, the hall and then the stairs.
By then I was getting bored but it seems to have plenty of capacity.

I don't really buy the "dead/dying cell" theory or the "low charger
voltage" theory as I can't see how either of these could cause this odd
behaviour.

Seems to be that the "battery charge management" chip is getting its
knickers in a twist and cutting the battery off at too high a voltage and
is getting "reset" when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it it's
not a huge problem but it is curious.

Tim

--
Please don't feed the trolls

No, had it from new Brian.


Tim

Brian Gaff \(Sofa 2\) wrote:
Could somebody have replaced the battery at some time with a non standard
one?
It reminds me of those in cartridges that spuriously say they are empty
when they are not. There is just too much tech being used these days.
Brian




--
Please don't feed the trolls

On 27 Dec 2019 17:03:09 GMT, Tim+ wrote:


Well, one of the more plausible explanations for my Dyson’s odd behaviour
(namely dying within seconds of coming off charge but being “restored” to
normal running duration by recharging for just 5 seconds back on the
charger) was that poor connection between the battery and the handset might
be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers but
it’s made no difference. I’m really puzzled by this behaviour. I did
wonder if it was just “pretending” to have recovered so having vacuumed the
hearth, I carried on with the sitting room, the hall and then the stairs.
By then I was getting bored but it seems to have plenty of capacity.

I don’t really buy the “dead/dying cell” theory or the “low charger
voltage” theory as I can’t see how either of these could cause this odd
behaviour.

Seems to be that the “battery charge management” chip is getting its
knickers in a twist and cutting the battery off at too high a voltage and
is getting “reset” when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it it’s
not a huge problem but it is curious.

Tim

When did you last clean the air filter(s) (I say filters because some
have more than one)? I don't honestly believe that will be the cause
but tech does odd things occasionally!

Graham Harrison wrote:
On 27 Dec 2019 17:03:09 GMT, Tim+ wrote:


Well, one of the more plausible explanations for my DysonÂ’s odd behaviour
(namely dying within seconds of coming off charge but being “restored” to
normal running duration by recharging for just 5 seconds back on the
charger) was that poor connection between the battery and the handset might
be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers but
itÂ’s made no difference. IÂ’m really puzzled by this behaviour. I did
wonder if it was just “pretending” to have recovered so having vacuumed the
hearth, I carried on with the sitting room, the hall and then the stairs.
By then I was getting bored but it seems to have plenty of capacity.

I don’t really buy the “dead/dying cell” theory or the “low charger
voltage” theory as I can’t see how either of these could cause this odd
behaviour.

Seems to be that the “battery charge management” chip is getting its
knickers in a twist and cutting the battery off at too high a voltage and
is getting “reset” when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it itÂ’s
not a huge problem but it is curious.

Tim

When did you last clean the air filter(s) (I say filters because some
have more than one)? I don't honestly believe that will be the cause
but tech does odd things occasionally!


*sigh*

And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim

--
Please don't feed the trolls

On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:

Graham Harrison wrote:
On 27 Dec 2019 17:03:09 GMT, Tim+ wrote:


Well, one of the more plausible explanations for my Dyson?s odd behaviour
(namely dying within seconds of coming off charge but being ?restored? to
normal running duration by recharging for just 5 seconds back on the
charger) was that poor connection between the battery and the handset might
be the problem.

Well I removed the battery, cleaned the contacts and crossed my fingers but
it?s made no difference. I?m really puzzled by this behaviour. I did
wonder if it was just ?pretending? to have recovered so having vacuumed the
hearth, I carried on with the sitting room, the hall and then the stairs.
By then I was getting bored but it seems to have plenty of capacity.

I don?t really buy the ?dead/dying cell? theory or the ?low charger
voltage? theory as I can?t see how either of these could cause this odd
behaviour.

Seems to be that the ?battery charge management? chip is getting its
knickers in a twist and cutting the battery off at too high a voltage and
is getting ?reset? when I put it back on charge.

Does this sound plausible? Anyhow, as long as I can easily restart it it?s
not a huge problem but it is curious.

Tim

When did you last clean the air filter(s) (I say filters because some
have more than one)? I don't honestly believe that will be the cause
but tech does odd things occasionally!


*sigh*

And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

YMMV.

Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim
--
Please don't feed the trolls

On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

i have one that does exactly eh same, so I will be pleased if a solution
is found.

Broadback wrote:
On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

i have one that does exactly eh same, so I will be pleased if a solution
is found.


The same as what though? Does yours pulse on and off? If not can you please
describe exactly what it does.

Tim

--
Please don't feed the trolls

On 29/12/2019 09:55, Tim+ wrote:
Broadback wrote:
On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

i have one that does exactly eh same, so I will be pleased if a solution
is found.


The same as what though? Does yours pulse on and off? If not can you please
describe exactly what it does.


Why waste time? If it's pulsing/vibrating give it to the missus and buy
a new one.
Of course, you may have mistaken her favourite toy for the Dyson...

On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

Blocked filters will increase the load on the motor to the extent it may
cycle in and out of overload shut-down or simply not have enough current
ability left in the battery to run.



--
"Nature does not give up the winter because people dislike the cold."

ۥ Confucius

On 29/12/2019 10:01, Richard wrote:
On 29/12/2019 09:55, Tim+ wrote:
Broadback wrote:
On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my
vacuum
cleaner has?Â* Would blocked filters make it recover after
reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have
always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago).
I could
wash again it but until you convince me that your symptoms were
exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

i have one that does exactly eh same, so I will be pleased if a solution
is found.


The same as what though? Does yours pulse on and off? If not can you
please
describe exactly what it does.


Why waste time? If it's pulsing/vibrating give it to the missus and buy
a new one.
Of course, you may have mistaken her favourite toy for the Dyson...
It does not pulse. It simply stops after a very short time. When I put
it on charge it either charges up quickly of takes its time. Next time I
use it sometimes it behaves correctly other times it fails after seconds.

On 28 Dec 2019 21:28:17 GMT, Tim+ wrote:

It only has one filter that looks clean (washed not that long ago).

If that the tapered "washable" filter about 6" long they are a right
PITA to properly wash. Unless you're very fussy and careful all you
end up with is a load of solidified (once dry) kack in the bottom of
the cone.

A blocked filter causes pulsing of the motor at least in "normal"
suck mode. Not sure if the higher suction setting would cause it just
to trip once and set the battery management chip into "overload" mode
that would be reset by placing back into the charger. Can't see why
it simply doesn't trip again when removed after a few seconds and
used unless the suck mode drops to "normal".

What ever I go with the battery management getting confused. The
management is more than just a charge control. It latches "off" in
the event of an overload and also if left for too long in kit with a
very light load that discharges the battery to far (FSVO: too long
and too far). If the battery's voltage is still within "good" limits
just putting the thing on charge will reset the management. In the
case of the long slow discharge it might need a bit of a kick to
reset, ie connect a PP3 directly across the battery terminals.

--
Cheers
Dave.

On Sun, 29 Dec 2019 10:40:28 +0000, The Natural Philosopher wrote:

Blocked filters will increase the load on the motor to the extent it may
cycle in and out of overload shut-down

Either the motor management (pulsing) or the battery management (off)
overload shutdown.

Generic filters are cheap enough on eBay to buy a couple.

--
Cheers
Dave.

Broadback wrote:
On 29/12/2019 10:01, Richard wrote:
On 29/12/2019 09:55, Tim+ wrote:
Broadback wrote:
On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my
vacuum
cleaner has?Â* Would blocked filters make it recover after
reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have
always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago).
I could
wash again it but until you convince me that your symptoms were
exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

i have one that does exactly eh same, so I will be pleased if a solution
is found.


The same as what though? Does yours pulse on and off? If not can you
please
describe exactly what it does.


Why waste time? If it's pulsing/vibrating give it to the missus and buy
a new one.
Of course, you may have mistaken her favourite toy for the Dyson...
It does not pulse. It simply stops after a very short time. When I put
it on charge it either charges up quickly of takes its time. Next time I
use it sometimes it behaves correctly other times it fails after seconds.


Okay, this does sound like my symptoms. Im still sceptical that its just
the filter but Ive lobbed it in the washing machine and well see if that
makes a difference.

Tim

--
Please don't feed the trolls

The Natural Philosopher wrote:
On 28/12/2019 21:28, Tim+ wrote:
Graham Harrison wrote:
On 28 Dec 2019 15:16:50 GMT, Tim+ wrote:


And just how would blocked filters produce the exact symptoms my vacuum
cleaner has? Would blocked filters make it recover after reconnection to
the charger for a few seconds? I think not...

Tim;/.l

Because I had one that did just that. I have NO idea why just that
when I cleaned everything it worked.

Well forgive my scepticism but in my experience blocked filters have always
caused pulsing of the motor, not just sudden death.

It only has one filter that looks clean (washed not that long ago). I could
wash again it but until you convince me that your symptoms were exactly the
same as mine Im gonna hold fire.

Did yours pulse?

Tim

Blocked filters will increase the load on the motor to the extent it may
cycle in and out of overload shut-down

Well that is my experience when theres any sort of system blockage.

or simply not have enough current
ability left in the battery to run.

My battery still seems to have plenty of battery capacity.

Tim


--
Please don't feed the trolls