Fridge Temperature Sensor Replacement in Warsaw
Fridge showing the wrong temperature, freezing too much or not cooling enough? The temperature sensor (NTC thermistor) sends the real compartment temperature to the control board. When the sensor gives false readings, the board reacts the wrong way — cutting the compressor off too soon or leaving it running when it shouldn’t. We replace sensors on site all over Warsaw — fast check and replacement.
Cost
The sensor is among the least expensive fridge parts. See prices in the table.
| Service | min | max |
|---|---|---|
| Thermostat replacement (fridge) | 300 zł | 350 zł |
| Fan replacement (fridge) | 300 zł | 400 zł |
| Sensor replacement (fridge) | 300 zł | 350 zł |
| Defrost heater replacement (fridge) | 350 zł | 450 zł |
| Refrigerant recharge (fridge) | 450 zł | 600 zł |
| Compressor replacement (fridge) | 700 zł | 1000 zł |
How it works
- You explain the issue — wrong temperature, freezing, error.
- The technician checks the model.
- Disconnect the appliance.
- Find the sensor — often on the rear wall or by the evaporator.
- Measure resistance with a multimeter at room temp.
- Install the new part, route the wiring.
- Turn power back on, confirm — display reads correctly, compressor cycles as it should.
Mistakes
- Mixing it up with a board fault — the sensor is much cheaper.
- Using the wrong sensor rating.
- Skipping checks on both sensors (fridge + freezer).
- Overlooking the display error — the fridge may be working in emergency mode.
Preparation
- Fridge model.
- Shown temp vs actual temp (use a thermometer).
- Move the food.
- Unplug the fridge.
- Photo of the model.
- Access inside — no need to pull the fridge out.
- Error code if there is one.
- Good lighting.
Case from Warsaw
Client in Ochota: Bosch — the display showed +2°C, but the thermometer inside showed +9°C. The sensor was stuck — resistance wasn’t changing with temperature. The board read the compartment as cold and kept switching the compressor off. We replaced the sensor. Within an hour, the display and thermometer both showed +4°C. 30 minutes. Tip: if the display says one thing but food is spoiling, measure the real temperature with a thermometer — many times it’s just the sensor.
FAQ
What is the sensor for?
It measures compartment temperature for the control board.
How many sensors are there?
Usually 2–3: fridge, freezer, and sometimes evaporator.
Can I test it at home?
Put a thermometer inside for 2 hours. If the display is off by more than 3°C, the sensor is likely the cause.
Do you bring the sensor?
Yes.
How long does it take?
20–40 min.
Which brands?
Samsung, LG, Bosch, Siemens, Liebherr, Whirlpool, Beko.
Is it expensive?
No — it’s one of the cheapest parts.
Can two fail at once?
Rare, but possible — especially after power surges.
Does an error mean sensor?
Often yes.
Who does the work
Sensor replacement done by fridge repair specialists. We cover all of Warsaw. Temperature reading wrong? Call us.