How Bosch KGU34665GB/01 Fridge Freezer Works | Common Faults & Parts

Changing the Defrost Heating Element on a Bosch Fridge Freezer

Welcome to our guide on replacing the defrost heating element on a Bosch fridge freezer model KGU34665GB/01.

Symptoms of a Faulty Fridge Freezer

Fridge not cooling: This could be caused by a malfunctioning defrost system, compressor issues, or a refrigerant leak.
Freezer not cooling: Similar to the fridge, a failing compressor, refrigerant leak, or defrost system problem could be the culprit.
Heavy ice buildup: This is a sign of a defrost system malfunction.

Please remember that, when working with any electrical appliances, safety should always be your top priority, and we also suggest you watch our video.

Additionally, you can visit our web store to buy genuine spare parts: https://shop.how-to-repair.com/collections/fridge-accessories-and-miscellanious

Identifying the Problem

If your fridge is not getting cold, it could be due to a buildup of ice preventing airflow from the freezer to the fridge. This is often a result of a problem with the defrost system. The defrost system is located behind the walls in the fridge freezer, and it includes an airflow ducting system. A heavy ice buildup on the unit can prevent it from defrosting properly and is one of the most common problems with these fridge freezers.

If the fridge and freezer are not getting cold even when the compressor motor is running, it could indicate either a compressor problem or a gas problem. If the compressor is not running, the issue could lie with the starter relay, the PTC overload sensor, or the circuit board, which is part of the thermostatic system.

Replacing the Defrost Heating Element

Once you’ve identified the problem, it’s time to change the defrost heating element. After plugging in the fridge, it should come down to temperature within a few hours. The freezer temperature should settle at about -22 degrees Celsius with a fridge temperature of 7 degrees Celsius. The defrost should take place every 24 hours, and you can see the temperature in the freezer rise when this happens. After the defrost, the compressor restarts, bringing the temperature back down.

To change the defrost heating element, you can visit our other repair guides below which provide detailed steps. You can also find all the necessary parts on our website.

After replacing the defrost heating element, let the fridge run for a few days to ensure it is functioning correctly. The fridge should maintain a consistent temperature, and the defrost should occur every 24 hours.

A faulty defrost heating element can cause your fridge freezer to stop working properly, but with this guide, you should be able to repair the problem by yourself. Remember, safety is crucial when working with electrical appliances. Always disconnect the power supply before performing any maintenance and consult a professional if you’re unsure about any step in the process.

We tried to be concise and give brief information on this guide, so we would recommend you watch our video since we’re showing you how easily you can change the defrost element on your fridge freezer. We also showed the graphing system of the fridge freezer, so we would recommend watching it thoroughly.

If you need any parts for your Bosch KGU34665GB/01 fridge freezer, you can find them on our site.

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