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. A technician must confirm through diagnosis whether it is necessary to replace it when the boiler exhibits these starting or locking issues.
- Type of part
- Pressure switches
- Status
- Refurbished
- Catalogue reference
- I39818260
- Warranty
- 1 year
Cointra 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
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 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 that require diagnosis in the pressure switch I39818260
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 Cointra that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F37 | Disconnected or faulty pressure switch | This symptom may be related to the part, but it does not confirm that it is faulty. A technician must check the equipment and its inspection according to the manual before deciding on a repair or replacement. |
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
- Uniclima internal SKU
- PBDMLN24E
- Brand
- Cointra
- Type of part
- Pressure switches
- Units in stock
- 8 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 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?
