Filling Valve Ref. MU0886100 - Valid for FE24E/1N and CE24E/1N
The filling valve allows water to be replenished in the heating circuit to recover pressure. If it fails, you will notice that you cannot refill the circuit or that it continuously leaks water, which can cause the system pressure to rise. This part is compatible with Fagor boilers such as the FE 24E/1 N, CE 24E/1 N, among others. It is replaced when it shows leaks or does not allow water to pass through correctly.
VAT included
Consult via WhatsAppFagor boilers compatible with reference MU0886100
Filling key with reference MU0886100. Seven confirmed compatibilities: FE 24E/1 N and FE 30E/1 B.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor FE 24E/1 N | Fagor | Contrasted |
| Fagor FE 30E/1 B | Fagor | Contrasted |
| Fagor FEB 24E/1 N | Fagor | Contrasted |
| Fagor FEB 24 AR1 N | Fagor | Contrasted |
| Fagor FEB 24 ED3 NAT | Fagor | Contrasted |
| Fagor CE 24E/1 N | Fagor | Contrasted |
| Fagor CE 30E/1 B | Fagor | 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. MU0886100 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 MU0886100. 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 filling valve MU0886100 resolves.
The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
No water enters the circuit when opening the valve to refill.
Cause: The internal shutter of the valve is stuck or worn out and does not allow mains water to pass through.
Check that the main water valve of the house is open and that there is network pressure.
- 02
The pressure rises on its own with the boiler off, without having opened the valve.
Cause: The internal seal does not completely close and allows a continuous trickle of water to pass into the circuit.
Close the main inlet valve and observe the pressure gauge for a while to see if it stops rising.
- 03
A drip is observed on the knurled black socket.
Cause: The white gasket inside has lost its seal with use and is leaking water from there.
Dry the area around the socket and check if the dripping reappears after a while before replacing the part.
- 04
The socket is hard to turn or gets stuck when opening and closing.
Cause: The lime in the water accumulates in the brass body and seizes the rotating mechanism.
Try moving it carefully and look for white lime deposits on the thread before considering it damaged.
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 filling key Fagor MU0886100
- Catalogue reference
- MU0886100
- Brand
- Fagor
- Type of part
- Filling valves
- 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.
- Body material
- Brass
- Socket
- Black, knurled
- Gasket
- White
Frequently asked questions about the filling key MU0886100
What material is the filling key Ref. MU0886100 made of?
Is this filling valve suitable for the FE24E/1N boiler?
Is this key compatible with the CE30E/1B boiler?
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