Temperature Probe for FIEM LCD Control Unit (old) – Technical Data Sheet
📦 Compatibility
Compatible models:
- MG Series (older models with LCD control unit)
- CIP CIP series (old models with LCD control unit)
⚠️ NOT compatible with:
- Recent models with MiniLED Advanced control unit
- Models with other modern control units (use T/H PROBE)
Spare part code: LCD T. PROBE
English Name: TEMPERATURE SENSOR FOR LCD THERMOSTAT
Manufacturer: FIEM Srl (Como, Italy)
⚠️ ATTENTION: Please carefully check that the spare part matches the image. If you have any questions or don't find the part you're looking for, please contact us via WhatsApp :
- ✅ A photo of the required spare part
- ✅ A photo of the control unit (old LCD)
- ✅ A photo of the label on the back of the incubator
- ✅ A description of the fault, preferably with a video
This way we can help you more quickly. Thank you!
🔍 When is this probe needed?
The temperature probe must be replaced when:
- Incorrect temperature displayed: The LCD display shows clearly incorrect values
- Reading locked: The temperature remains fixed at one value (e.g. always 25°C)
- Error on display: "Err", "---" or other error codes appear
- Excessive fluctuations: Temperature fluctuates by ±2-3°C instead of remaining stable
- Resistance always on: It never turns off, temperature rises above 40°C
- Resistance always off: It never turns on, temperature drops below 35°C
- Impossible values: Display shows -10°C, 60°C or other unrealistic values
- Physically damaged probe: Cable cut, crushed or burned
⚠️ What is the probe and why is it essential?
The temperature probe is the critical sensor of the control system:
- Detect internal temperature: Constantly measures the temperature in the incubator
- Transmits data to the control unit: Sends the electrical signal to the LCD control unit
- Allows automatic regulation: The control unit turns the resistance on/off based on the probe data
- Vital precision: Variations of 1°C can compromise hatching
- Without a working probe: No automatic temperature control → lost eggs
⚠️ Before ordering: diagnostics
Is the probe really the problem?
Rapid tests:
- Compare display temperature to analog thermometer: Place a control thermometer in the incubator and compare it with the LCD display. A difference of >2°C means the probe is likely faulty.
- Observe the behavior: Does the displayed temperature change when you open/close the incubator? If it stays the same, the probe is blocked.
- Visual cable inspection: Verify that the probe cable is not cut, crushed or burned.
- Check connection: Check that the probe is properly connected to the LCD control unit (it may have become disconnected).
If the problem persists even after replacing the probe: The LCD control unit itself could be faulty.
📸 In doubt? Send us photos on WhatsApp of the LCD display showing the abnormal temperature and the probe: we'll help you diagnose.
🔧 Technical features
| Characteristic | Value |
|---|
| Sensor type | Temperature probe (type to check: NTC/PTC) |
| Function | Internal incubator temperature detection |
| Compatibility | LCD control unit (old) MG and CIP CIP series |
| Connection | Cable with connector for LCD control unit |
🔧 Replacement
Procedure (accessible even to non-expert users):
- Unplug the incubator from the socket
- Open the incubator
- Locate the temperature probe (cable that starts from the LCD control unit and enters the incubator)
- Disconnect the old probe's connector from the LCD control unit
- Gently remove the probe from inside the incubator
- Insert the new LCD T.PROBE probe into the same spot
- Connect the connector to the LCD control unit
- Reconnect the plug and check that the display shows the correct temperature
- Wait 10-15 minutes for stabilization and compare with analog thermometer
💡 Advice from 45 years of experience: After replacing the probe, let the temperature stabilize for at least 30 minutes before loading the eggs. Check with an analog thermometer that the temperature is actually correct.
❌ Common mistakes to avoid
- Do not place the probe in its original place, for example near the resistor: it would read too high a temperature.
- Do not place near the fan: It would read a lower temperature than the actual one
- Do not pinch the cable in the lock: You risk damaging the new probe
- Do not pull the cable forcefully: Gently pull out the old probe
🛒 Commercial information
Price: €13.70 each (VAT excluded, shipping excluded)
FIEM WAREHOUSE IN COMO – Padovan Avicoltura: original FIEM quality guaranteed for your incubator.
💬 Minimum Order: Transparency on Logistics Costs
For spare parts orders, a minimum amount of €20 (excluding VAT and shipping) is required.
This threshold serves to cover the operating costs that make the service possible:
- Search and picking time – Each component must be located in the FIEM warehouse among thousands of references
- Administrative management – Invoice issuance, tax registration, inventory control
- Tracked courier organization – Pickup booking, tracking label, customer notification
💡 Tip: Order at least 14 probes (€20.58) as a reserve for future replacements (wear component), or supplement with other spare parts.
💡 Related spare parts
- LCD control unit (old) (price to be verified) – If the control unit is also faulty
- Thermometer °F (0.5/A) (€22.05) – Analogue backup temperature control
- 2A Fuse (CF521220) (€0.42) – Electrical Protection
- R75E resistor (€12.18) – If the heating cable is also damaged
📦 Logistics and times
- Shipping: 1 business day
- Delivery: 2-4 working days
- Departure: FIEM Como Warehouse
✅ Guarantee
- Warranty: 24 months for private customers, 12 months for VAT numbers
- Support: WhatsApp 351 881 9586
- FIEM since 1975: Original tested components
❓ Frequently Asked Questions (FAQ)
Q: Will this probe fit my new MG50?
A: It depends. If you have the old LCD control unit, yes; if you have the MiniLED Advanced, no (you need a T/H probe). Send a photo of the control unit on WhatsApp for verification.
Q: Can I use a generic probe instead of the original FIEM one?
A: Not recommended. Probes have specific electrical characteristics, and a generic one could give incorrect readings.
Q: How long does a temperature probe last?
A: With proper use, 5-10 years. It depends on annual incubation cycles and environmental conditions.
Q: If the probe malfunctions, can I continue incubating?
A: Very risky. Without precise temperature control, the eggs can die or become damaged. It's best to replace them before starting new cycles.
Q: How do I know if I have an old LCD control unit?
A: If the display is an LCD with black digits on a gray/green background (no bright LEDs), it's the older version. Send us a photo on WhatsApp if you have any questions.
📞 Need help?
📋 Legal Notice and Rights
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PLAGIARISM PROHIBITED: Total or partial reproduction of this text/data on other websites is monitored and will be legally prosecuted (DMCA and Law 633/41) without notice.
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