Manometer Cointra M 20 I 7477
When you open the tap or start the heating, the Cointra M 20 I 7477 pressure gauge measures the pressure of your boiler's circuit. If this part fails, you will notice incorrect readings, which can cause the boiler to lock due to a false lack of pressure or not regulate the temperature properly. This pressure gauge is compatible with several Cointra models, such as the E20I, E20L, M20, M20I, and M20L, among others. A technician must confirm through diagnosis whether it needs to be replaced upon observing these symptoms to avoid issues with your boiler's operation.
- Type of part
- Pressure gauges & aquastats
- Status
- Refurbished
- Catalogue reference
- 7477
- Warranty
- 1 year
Cointra boilers compatible with reference 7477
Pressure gauge with reference 7477. Five confirmed compatibilities: E20I and E20L.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra E20I | Cointra E-20 | Verified |
| Cointra E20L | Cointra E-20 | Verified |
| Cointra M20 | Cointra M-20 | Verified |
| Cointra M20I | Cointra M-20 | Verified |
| Cointra M20L | Cointra M-20 | Verified |
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 7477 is the one for your boiler.
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 7477. 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 that require diagnosis on the manometer 7477
The manometer shows the pressure of the boiler circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler is full of water, but the pressure gauge still reads zero.
Cause: The internal circuit of the pressure gauge has become blocked and does not display the actual pressure.
Fill the pressure using the filling key for a moment; if you notice that the boiler is taking in water properly but the needle does not respond, the pressure gauge is the suspect.
- 02
The needle remains fixed in the same position even if you bleed the radiators or refill the water.
Cause: The mechanism has seized up, which is common after several seasons without maintenance.
Gently tap the glass with your finger; if the needle does not react at all, the mechanism is stuck.
- 03
The sphere or the glass appears broken, scratched, or with the Cointra mark illegible.
Cause: A blow or forced assembly damages the pressure gauge housing, which is not designed to withstand impacts.
Check that the glass is intact on the outside before discarding the pressure gauge just because the dial is dirty.
- 04
During an installation inspection, the pressure reading does not match the expected value.
Cause: Over the years, the mechanism loses precision and the reading becomes unreliable even though the needle moves normally.
Note the reading before and after bleeding the circuit; if the difference does not match what was bled, suspect the pressure gauge.
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.
Cointra 7477 pressure gauge data sheet
- Catalogue reference
- 7477
- Uniclima internal SKU
- MPCM-20I
- Brand
- Cointra
- Type of part
- Pressure gauges & aquastats
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Pressure gauge
- 0-6 bar
- Manufacturer (brand printed on the dial)
- Cointra
- The brand Cointra corresponds to what is printed on the gauge dial itself.
Frequently asked questions about the manometer 7477
Is this pressure gauge compatible with the Cointra M 20 I 7477 boiler?
Who manufactures this manometer for the Cointra M 20 I 7477?
What pressure scale does the manometer of the Cointra M 20 I 7477 have?
When should the pressure gauge of the Cointra M 20 I 7477 be replaced?
