Excellent D Micro LN 24 E Water Pressure Switch Ref. I39818260
The Excellent D Micro LN 24 E water pressure switch is a component that controls the water pressure in your boiler. Its function is to monitor the pressure and allow the boiler to operate. If it fails, you will notice that the boiler does not start or gets locked, even if the pressure is correct, and the fault code F37: Pressure switch disconnected or faulty may appear. This pressure switch is compatible with several models from the Cointra Excellent Micro Low Nox and Cointra Excellent Micro ranges, among others. It should be replaced when the boiler shows these starting or locking issues.
VAT included
Consult via WhatsAppCointra boilers compatible with reference I39818260
Pressure switch with reference I39818260. Six confirmed compatibilities: Excellent Micro Low Nox D 24 E and Excellent Micro Low Nox D 32 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra Excellent Micro Low NOx D 24 E | Cointra Excellent Micro Low Nox (D) | Contrasted |
| Cointra Excellent Micro Low NOx D 32 E | Cointra Excellent Micro Low Nox (D) | Contrasted |
| Cointra Excellent Micro Low NOx 24 E | Cointra Excellent Micro Low Nox (D) | Contrasted |
| Cointra Excellent Micro Low NOx 32 E | Cointra Excellent Micro Low Nox (D) | Contrasted |
| Cointra Excellent Micro 24 E | Cointra Excellent Micro | Contrasted |
| Cointra Excellent Micro 32 E | Cointra Excellent Micro | 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 ref. I39818260 is the part 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 I39818260. 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 switch I39818260 resolves.
The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite and a warning of low water pressure appears on the display.
Cause: The pressure switch detects that the circuit pressure is too low and blocks the ignition.
Check the manometer: if it's low, fill the circuit with the filling key; if it's already fine and the warning persists, the problem may be the pressure switch.
- 02
The pressure switch seems to be 'stuck': the boiler does not start even if you increase the pressure in the circuit.
Cause: The internal contact can get stuck over time, especially in plastic parts, and may not close even if the pressure is correct.
Increase the pressure of the circuit a little (without exceeding 2 bar) and check if the warning disappears; if it doesn't change, the pressure switch is not functioning.
- 03
Pressure error or warning that appears and disappears on its own, without anyone touching anything in the installation.
Cause: A pressure switch with a damaged diaphragm or spring can provide unstable readings even if the actual pressure remains constant.
Monitor the manometer for a while: if the needle does not move but the warning comes on and off, the problem is with the pressure switch, not the installation.
Fault codes for Cointra that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F37 | Disconnected or faulty pressure switch | If the boiler shows a disconnected or faulty pressure switch error, the pressure switch may not be functioning. Check the connections of the pressure switch and its condition. If it is damaged, you will need to replace it for the boiler to operate correctly. |
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.
Datasheet for the Cointra pressure switch I39818260
- Catalogue reference
- I39818260
- Brand
- Cointra
- Type of part
- Pressure switches
- Units in stock
- 6 units
- 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 setting
- 0.75 bar
- Voltage
- 60V
- The number '29-15' is seen in reverse through the translucent plastic; it is most likely a batch code or manufacturing date, not a product reference.
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Cointra Excellent Micro Low Nox D 24 E Manual (PDF)Document © Cointra, provided as a technical reference.
Frequently asked questions about the pressure switch I39818260
Is this pressure switch compatible with the Excellent Micro 24 E?
What pressure is the pressure switch of the Excellent D Micro LN 24 E set to?
What does the number 29-15 engraved on the pressure switch mean?
How many models are compatible with the Excellent D Micro LN 24 E water pressure switch?
What is the reference for the water pressure switch?
What fault code is documented for this product?
Spare parts related to Cointra Cointra Excellent Micro Low Nox (D)
