Bosch SMS 4452GB/11 FD 7305/114397

[jonsco]

It hasn’t been used for 2 years.

The bosch seems to have a problem with I think a thermal switch.
It will start the wash cycle but it just seems to get hotter and hotter and it just carrys on washing, the only way to continue is to move the knob round to the drain cycle.

It then does the same on the rinse cycle.
So I figure it must be a temperature sensor. Though I know very little about dishwashers.

Any ideas and recommendations please

Thanks

[Penguin45]

Almost certainly a stuck thermostat. This a 65c normally open stat. The timer is stopped for heating until the thermostat closes the circuit and restarts it. Obviously, if it doesn’t, it stays in the heat position.

The other possibility is broken wiring in the door.

If you are unsure of your abilities, get help – you can pop your postcode up here and a UKW engineer wil pick up on it. :plug:

If you’re going to have a look yourself, pull the plug first.

Regards,
Penguin45.

[Dave_Conway]

Re: Bosch SMS 4452GB/11 FD 7305/114397

It does sound like a thermostat problem to be honest.

Possibly a lead has become disconnected or something silly like that ?

If you’re having a look inside, please ensure you remove the plug from the socket 1st (may seem obvious but…)

Dave.

[jonsco]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Hi thanks for that.
Any ideas where I can get a replacement stat from, and where in the machine it is located.

Thanks

[Penguin45]

It’s a little screw on job at the front under the tub. Part number is 022480 ant that nice Mr Conway will be able to get one through Shop@.

Regards,
Penguin45.

[Dave_Conway]

Penguin45 wrote:Mr Conway will be able to get one through Shop@.

Added to the Shop@ poste haste 😉

Mainly Hotpoint models listed jonsco but it’s the same thing, Hotpoint used these Bosch made dishwashers for a few years 😉

Dave.

[jonsco]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Hi chaps
thanks for the item, which i have ordered, which prompts another numb question.

Have downloaded the schematic from the Bosch web site but it is not exactly clear as to the location of the stat, do you get to “under the tub” as so well explained by Penguin45 by laying washer on its back?

Sorry Guys but am an IT engineer, am use to smaller things

Thanks in advance

[Penguin45]

With the machine unplugged, remove the lower front cover, the thermostat is attached right of centre to the underside of the tub towards the front- a small ceramic block with two wires attached.

No real need to tip the machine over – it can cause its own problems.

Regards,
Penguin45.

[jonsco]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Hi Guys

Thanks for that Penguin45.

should keep me busy for a while, waiting in anticipation for the arrival of the stat.

Thanks a lot, really appreciate the assistance

john

[jonsco]

Re: Bosch SMS 4452GB/11 FD 7305/114397

just one other point, came as some suprise to find the forums split up in the last 24 hours, even more surprised to find that my dishwasher had landed in the washers section.

I have to say that it must have been a major feat to split up over 3k of posts, major, major task

all the best

[Dave_Conway]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Moved to Dishwashers 😀

We’re dedicated you know 😆

Dave.

[Penguin45]

Dedicated?

More like fanatical………..

A few of the Trade members have actually done a quite staggering amount of work to make the Public forums more practical to use, so hopefully everybody will reap some benefit – not least us Mods – it can do your head in after a while trying to keep up with the the posts you’re sorting!

Let us know how the stat works out,

Regards,
penguin45.

[jonsco]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Hi Guys

Just to say thanks the old Bosch is working a treat, really appreciated.

Not to mention moving my posting into dishwashers, just when I had got used to it being a washer.

Cheers

john 😉

[Dave_Conway]

Re: Bosch SMS 4452GB/11 FD 7305/114397

Nice one John :tup:

Just don’t put your smalls in it eh 😆

Dave.

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