Description
Original temperature sensor for Bloomberg Grundig refrigerator and freezer | 5730685300
Original temperature sensor (NTC Thermistor) for Blomberg and Grundig refrigerators and freezers
The critical component for proper temperature regulation in the device.
A faulty sensor causes error codes, unstable cooling, and potential damage to the compressor.
Replacing with an original part returns the refrigerator to optimal operation.
⚠️ Important – Technician coordination before installation
This product requires installation by a certified official service technician.
The cost of the technician's visit is 290 NIS.
From our experience in official service laboratories,
Replacing a temperature sensor in a refrigerator requires dismantling internal components and connecting them to the electronic control system.
A certified technician from the official service will perform the work safely and professionally.
👉 To schedule a certified official service technician – click here
💡 The part can also be installed independently or by a private technician, but we strongly recommend using an official service technician for maximum safety.
Just before ordering: Click the 'Check Model Compatibility' button at the top of the page and the system will immediately confirm that the part is suitable for your device.
🔧 What is the role of the temperature sensor in the refrigerator?
The temperature sensor (NTC thermistor) measures the temperature inside the refrigerator and sends the data to the control card.
The control card uses this information to turn the compressor on or off and control the defrost system.
When the sensor fails, the refrigerator gets “confused” – it doesn’t know what the real temperature is and responds incorrectly.
🚨 Signs of a faulty temperature sensor
- ✔️ Error code E1, E4, E6 or E13 Appears on the display
- ✔️ Flashing red exclamation mark On the control panel
- ✔️ The refrigerator Not cooling enough או Too cold
- ✔️ Temperature fluctuations – Food has frozen in the refrigerator compartment or thawed in the freezer.
- ✔️ Unusual ice buildup On the evaporator or freezer walls
- ✔️ The compressor Working non-stop Or doesn't turn on at all
Our certified technicians state:
A faulty sensor may send incorrect readings to the control card,
Which causes problems with the defrost cycle and overloading the compressor – faults that can be significantly more expensive if not addressed in time.
🛡️ Why an original part?
Original Bloomberg/Grundig sensor ensures:
- ✔️ Perfect measurement accuracy – Resistance values are identical to the manufacturer's specifications
- ✔️ Resistance to extreme conditions – Adapted for continuous work in sub-zero temperatures
- ✔️ Full connector compatibility – Safe and direct connection to the control card
- ✔️ Accurate cable length – Correct installation without stretching or folding
⚠️ Non-original parts may cause incorrect readings, compromise the safety of the device, and lead to damage to the compressor or control card.
📍 How do you locate the model number on a Bloomberg/Grundig refrigerator?
To ensure a perfect fit, locate the model number on the model sticker:
- On the left inner wall of the refrigerator compartment
- Behind the vegetable drawer – Pull out to see
- On the inside frame of the door
The model number consists of letters and numbers (for example: KQD1621, FNT3686).
📋 Technical specifications
| attribute | Details |
|---|---|
| Manufacturer's SKU | 5730685300 |
| Manufacturer description | Sensor |
| Part type | Temperature sensor / NTC thermistor |
| brands | Blomberg, Grundig |
| Compatible devices | Top freezer refrigerator, bottom freezer refrigerator, 5-8 drawer freezer, 4 door refrigerator |
| התקנה | A certified official service technician is required. |
| Cost of technician visit | 290 NIS |
| Delivery time | Up to 10 business days |
✅ List of compatible models
Bloomberg Refrigerators: DND9980, DNE1870, KND2409, KND3720, KND3950, KND3954, KND3956, KND3958, KND3965, KND3968, KND9921, KQD1620, KQD1621, KQD1622, KQD1623, KQD1625, KQD1626, KQD1628, KQD1635, KQD1638, KQD1644, MKND3880
Bloomberg Freezers: FNT3661, FNT3674, FNT3676, FNT3677, FNT3678, FNT3685, FNT3686, FNT9553, FNT9557, FNT9559, FNT9673
Grundig: GFN24840, GKNI56930, GQN1621, GQN21225, GQN21226
Didn't find your model? Click 'Check Model Compatibility' at the top of the page or contact us for clarification.
👨🔧 Why is it important to use an official service technician?
Replacing a temperature sensor requires expertise:
- Accurate diagnosis – Is the sensor really faulty or is it another fault?
- Access to internal components – The sensor is sometimes located in the evaporator area or near the control card.
- Testing resistance values – Verify that the new sensor is operating within the normal range
- Operation and testing – Verify that the refrigerator is back in proper operation.
Customers who purchased this part have praised the professionalism and speed of the official service technician.
👉 Click here to schedule a certified technician
💡 A tip from the experts for preventive maintenance
To extend the life of the temperature sensor and prevent future malfunctions:
- Ensure hermetic closure – Check that the refrigerator doors close properly.
- Clean the sealing rubbers – Once a month with a damp cloth
- Don't overload. – Load blocks airflow and burdens the system
- Defrost if necessary. – Unusual ice accumulation indicates a problem
❓ Frequently Asked Questions
Q: Does the sensor fit my model?
A: Press the button. 'Model Compatibility Check' at the top of the page and enter the model number from the sticker inside the refrigerator.
Q: Can I install it myself?
A: The part can also be installed independently or by a private technician.
Yet, We strongly recommend installation by a qualified official service technician. For maximum safety and to ensure the integrity of the device.
To schedule a technician, click here.
Q: How much does a technician visit cost?
A: The cost of a visit by a certified official service technician is 290 NIS.
Q: Is this an original product?
A: Yes, this is a genuine Bloomberg/Grundig replacement part, part number 5730685300, imported and sold by the official service provider.
Q: What is the delivery time?
A: Deliveries are made within Up to 10 business days.
For the Golan Heights, the Arava, Eilat and settlements beyond the Green Line – Up to 10 business days.
📞 Questions? Need help? 👉 To schedule a certified official service technician – click here






















