Bosch KGH39A47GB/01 fridge freezer frost issue.

[ydenys]

Hello,

Ice accumulation on the fins within a week’s use blocking the airflow from the freezer compartment. When defrosted thoroughly (frost free, not in the manual), functions well for another week or so, slowly accumulating snow. All door seals are good. No noise/temperature issues/rapid temperature fluctuations. “Super” fan being on or off in any compartment does not affect it. Please advice on the fault/instructions to remedy it.

Thanks in advance.

[Bosch Home UK]

Re: Bosch KGH39A47GB/01 fridge freezer frost issue.

ydenys wrote:Hello,

Ice accumulation on the fins within a week’s use blocking the airflow from the freezer compartment. When defrosted thoroughly (frost free, not in the manual), functions well for another week or so, slowly accumulating snow. All door seals are good. No noise/temperature issues/rapid temperature fluctuations. “Super” fan being on or off in any compartment does not affect it. Please advice on the fault/instructions to remedy it.

Thanks in advance.
Hi,

We are sorry that you are experiencing issues with your appliance and would advise that you need to call our Customer Care Team on 03448 928 979 to discuss this issue further.

Thanks
Tammy

[kwatt]

Re: Bosch KGH39A47GB/01 fridge freezer frost issue.

Sounds like you’ve got a sensor issue and it’s over-freezing if the fan’s running okay.

The two used in that model, I’m not bothering with the thermal fuse one are:

https://shop.ukwhitegoods.co.uk/00616301-ptc-sensor

https://shop.ukwhitegoods.co.uk/168766- … thermistor

The first is the freezer one, second the fridge. The freezer one is on the left side of the freezer evaporator.

Fridge one, right side wall behind the cover.

K.

[ydenys]

Re: Bosch KGH39A47GB/01 fridge freezer frost issue.

Thank you very much for the prompt reply.

How would I know which sensor is faulty? If I’ll change settings from a lower temp to higher on each of the compartments in turn and see if fridge stops? Simply removing and inspecting one and the other? Checking temperatures? Fridge seems on most of the time, but maybe it’s due to it being full and the hot weather. Any fool proof method to diagnose?

TIA.

[kwatt]

Re: Bosch KGH39A47GB/01 fridge freezer frost issue.

In this section of the site…

http://www.ukwhitegoods.co.uk/help/fix- … -self-help

You’ll find this article…

http://www.ukwhitegoods.co.uk/help/fix- … hermistors

All about them.

K.

[ydenys]

Hello again,

We were defrosting the fridge every other week manually for almost three months while Bosch engineers were trying to fix it (6 visits altogether). They finally gave up and returned all the money (no fix, no fee).

Now, the heater element in the defrost unit and the main panel have been replaced. It took them this long to obtain the parts/diagnose, total fail, Bosch (MKS). Unfortunately, both engineers visiting had refused to change the PTC sensor as you here advised. They blamed a wiring issue and written the appliance off once the costs of the repair passed a certain point.

I therefore would like to buy it and attempt to change it myself if you consider it worthwhile. Additional point of note: sometimes the temperature indicator for the fridge compartment on the main panel cycles through all possible settings as if the button is pressed every second. The only way to stop it is to switch the fridge off and back on. Can this indicate/pinpoint a fridge compartment PTC sensor fault?

Thanks in advance.

[Author]

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