
Pressure Gauge 0-4 Bar Cointra Excellent Low NOx - Ref. 39820080
If you notice that the boiler is showing incorrect pressure or temperature readings, you may need the 0-4 bar pressure gauge Cointra Excellent Low NOx - Ref. 39820080. This part measures and controls the pressure in the boiler circuit, ensuring it operates properly. When it fails, it can cause lockouts due to false low pressure or issues with temperature regulation. It is compatible with Cointra Excellent Low NOx boilers, as well as others like Ferroli Domiproject and Lamborghini. It is recommended to replace it when it starts to show erroneous readings or instability in pressure.
VAT included
Consult via WhatsAppCointra boilers compatible with reference 39820080
Pressure gauge with reference 39820080. 22 verified compatibilities: EXCELLENT MICRO LOW NOX 24E and EXCELLENT MICRO LOW NOX 32E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra EXCELLENT MICRO LOW NOx 24E | Cointra EXCELLENT (Micro) Low NOx | Contrasted |
| Cointra EXCELLENT MICRO LOW NOx 32E | Cointra EXCELLENT (Micro) Low NOx | Contrasted |
| Cointra EXCELLENT MICRO LOW NOx D 24E | Cointra EXCELLENT (Micro) Low NOx | Contrasted |
| Cointra EXCELLENT MICRO LOW NOx D 32E | Cointra EXCELLENT (Micro) Low NOx | Contrasted |
| Cointra DOMIPROJECT F24 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DOMIPROJECT F32 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DOMIPROJECT D F24 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DOMIPROJECT D F32 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DOMICOMPACT F24 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DOMICOMPACT F30 | Ferroli DOMIPROJECT / DOMICOMPACT | Contrasted |
| Cointra DIVATECH F24 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DIVATECH F32 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DIVATECH MICRO F24 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DIVATECH MICRO F32 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DOMITECH C24 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DOMITECH C32 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DOMITECH F24 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra DOMITECH F32 | Ferroli DIVATECH / DOMITECH | Contrasted |
| Cointra LAMBORGHINI NINFA LOW NOx N24 MCA | Lamborghini / Joannes (same group Ferroli) | Contrasted |
| Cointra LAMBORGHINI TAURA D24 | Lamborghini / Joannes (same group Ferroli) | Contrasted |
| Cointra LAMBORGHINI TAURA D32 | Lamborghini / Joannes (same group Ferroli) | Contrasted |
| Cointra JOANNES | Lamborghini / Joannes (same group Ferroli) | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if the part number 39820080 is the piece for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 39820080. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the pressure gauge 39820080 resolves.
The manometer shows the pressure of the boiler circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The pressure gauge never moves, neither when filling the water nor when bleeding a radiator.
Cause: The internal mechanism has become blocked, which is common if dirt has entered through the connection thread.
Fill the water slowly with the filling valve and check if the needle makes at least a small initial jump.
- 02
The gauge shows a pressure that doesn't match what you have always seen in that installation.
Cause: The mechanism has lost calibration and no longer accurately translates the actual pressure in the reading.
If you have another portable manometer, compare the reading at the same point before replacing the part.
- 03
Water is dripping from behind, in the area where the pressure gauge connects to the boiler.
Cause: The tightness of the thread has been lost, something common over the years and with the cycles of heat.
Gently tighten the connection without forcing it; if the dripping continues after a few hours, the pressure gauge needs to be replaced.
- 04
The dial is fogged or broken, and no numbers can be distinguished.
Cause: Moisture has entered the body or there is a impact that has damaged the glass.
Look carefully to see if you notice needle movement when touched, even if you can't read the number; it indicates whether the mechanism is still functioning.
Fault codes for Cointra that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F37 | The water pressure is too low. | The water pressure in the system is incorrect and too low. This can affect the operation of the boiler. If the pressure gauge does not show an appropriate value, you may need to replace it. |
| F40 | The water pressure is too high. | The water pressure in the system is incorrect and too high. This can cause problems in the system. If the pressure gauge shows excessive pressure, you may need to replace it. |
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the Cointra 39820080 pressure gauge.
- Catalogue reference
- 39820080
- Brand
- Cointra
- Type of part
- Pressure gauges & aquastats
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Pressure gauge
- 0-4 bar
- Country of manufacture
- Italy








