Dungs Pressure Switch LQW 3 C3 For Fagor Ecocompact/FEB-20E - Art-Nr 229 298
Pressure switch with the brand DUNGS printed on the label ('Made in Germany'), model LQW 3 C3, Art-Nr 229 298, ID-No CE-0085AQ0493. It is a safety component that detects pressure and acts on the boiler's electrical circuit when it is incorrect. Compatible with Fagor Ecocompact FE-20E, FE 20E (FE20E), and FEB-20E.
VAT included
Consult via WhatsAppFagor boilers compatible with reference MU0837600
Pressure switch with reference MU0837600. 17 verified compatibilities: FE 20 E-1 N and FE 20 E GLP.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor FE 20 E-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E-1 Y N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E-1 DB N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E-1 IN N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E-1 AN N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E UK-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 E UK-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 EF-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FE 20 EF-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20 D-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20 D-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20 F-1 N | Fagor Ecocompact FE 20 E / FEE 20 | Contrasted |
| Fagor FEE 20 F-1 LPG | Fagor Ecocompact FE 20 E / FEE 20 | 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. MU0837600 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 MU0837600. 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 MU0837600 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 fan starts but the boiler does not ignite.
Cause: The air pressure switch controls the fan pressure. If it does not detect it, the boiler does not allow the gas to flow.
Check if the fan reaches the normal revolutions before inspecting the pressure switch.
- 02
A lockout code related to air or combustion appears.
Cause: This indicates that the air pressure switch does not close the contact within the time expected by the boiler.
Check that the air intake and exhaust ducts are not blocked before replacing the part.
- 03
The fault comes and goes: sometimes it starts up properly and other times it locks up for no apparent reason.
Cause: An air pressure switch that is right on the limit can intermittently close the contact due to small variations.
Note if the fault occurs more often on windy days or with a very long flue.
- 04
The connection tubes to the pressure switch are loose, bent, or have condensation residue.
Cause: The pressure switch needs to receive the actual pressure from the venturi or the duct without losses to function correctly.
Check the entire path of the silicone tubes up to the pressure switch before replacing it.
Fault codes for Fagor that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 2 | The air pressure switch does not detect air circulation or is faulty. | If the pressure switch does not close due to lack of depression/draught (obstruction in chimney/intake or fan) or due to internal failure, the PCB locks with "2". Check the continuity of the pressure switch when applying depression to the tubes, inspect tubes/venturi, and ensure the fan generates sufficient differential. |
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.
Fagor MU0837600 pressure switch datasheet
- Catalogue reference
- MU0837600
- Brand
- Fagor
- Type of part
- Pressure switches
- 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.
- Manufacturer
- Dungs (printed as DUNGS on the label)
- Country of manufacture
- Germany (Made in Germany)
- Model / Art-Nr
- LQW 3 C3, Art-Nr 229 298
- CE code (ID-No)
- CE-0085AQ0493
Frequently asked questions about the pressure switch MU0837600
Is the pressure switch of the Fagor FEB-20E an original Dungs?
Is this Dungs pressure switch suitable for the Fagor Ecocompact FE-20E?
Where is this Dungs pressure switch that is used in the Fagor Ecocompact manufactured?
Spare parts related to Fagor Fagor Ecocompact FE 20 E / FEE 20
