Cointra Excellent D Micro LN 24 E Safety Valve Ref. I39818270
Safety valve set at 3 bar, body PN10, with CE marking from notified body 1115 and maximum allowable temperature of 110°C. It releases pressure from the boiler circuit when it exceeds the set value, protecting the system from overpressure. The replacement requires first confirming the fault of the part through technical diagnosis, even when it leaks continuously or does not bleed upon reaching the set pressure.
- Type of part
- Safety valves
- Status
- Refurbished
- Catalogue reference
- I39818270
- Warranty
- 1 year
Cointra boilers compatible with reference I39818270
Safety valve with reference I39818270. Four confirmed compatibilities: Excellent Micro 24 E and Excellent Micro / LOW NOX 24 E.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra Excellent Micro 24 E | Cointra Excellent Micro (LN) E | Verified |
| Cointra Excellent Micro / LOW NOx 24 E | Cointra Excellent Micro (LN) E | Verified |
| Cointra Superlative 25 E | Cointra Superlative E | Verified |
| Cointra DOMIproject F24 | Ferroli DOMIproject F | 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 ref. I39818270 is the part 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 I39818270. 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 in the safety valve I39818270
The safety valve releases pressure when the circuit exceeds its setting. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
Water is continuously dripping from the drain tube, even after the circuit has just been bled.
Cause: The valve does not seal properly because its sealing seat has lost tightness.
Bleed the air from the radiators and measure the pressure when cold: if it is correct and it continues to leak, the gas valve is failing.
- 02
The pressure rises above normal and the gas valve does not open.
Cause: The internal mechanism is jammed with limescale, preventing the spring from pushing the shutter.
With the boiler cold, operate the manual bleed lever to check if the mechanism moves freely.
- 03
The valve trips, releases water, and then continues to drip without fully closing again.
Cause: Lime residues or a particle on the seat prevent the gas valve from sealing again after firing.
After a shot, bleed the valve a couple of times manually: sometimes it drags the particle and regains the seal.
- 04
Water needs to be added to the circuit more frequently than usual, even though no large leak is visible.
Cause: A slow drip from the valve can go down the drain without leaving a visible puddle, causing a loss of pressure.
Place a container under the drain pipe for an entire night to check if it collects water.
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 safety valve I39818270
- Catalogue reference
- I39818270
- Uniclima internal SKU
- VSDMLN24E
- Brand
- Cointra
- Type of part
- Safety valves
- Units in stock
- 7 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.
- Setpoint
- 3 bar
- Nominal pressure of the body (PN)
- PN 10
- Maximum temperature
- 110°C
- CE marking / notified body
- 1115
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Cointra Superlative 25 E Manual (PDF) Document © Cointra, provided as a technical reference.
Frequently asked questions about the safety valve I39818270
What pressure is the safety valve of the Cointra Excellent D Micro LN 24 E set to?
Which models are compatible with the safety valve VSDMLN24E?
What nominal pressure does the body of the Cointra Excellent D Micro LN 24 E safety valve withstand?
What is the maximum temperature that the safety valve of the Cointra Excellent D Micro LN 24 E can withstand?
Is this safety valve suitable for a Cointra Excellent Micro boiler?
What fault code does the Cointra Excellent D Micro LN 24 E safety valve have?
