Filling Key for Minox Eco 24E Boiler Ref. 1181503
Filling Key for Minox Eco 24E Boiler Ref. 1181503, manufactured by Biasi, is the component that allows water to be replenished in the heating circuit to recover pressure. If this part fails, you will notice that you cannot refill the circuit or that it continuously loses water, which causes an increase in pressure. It is installed in Minox Eco 24E boilers from the brands Manaut and Biasi, among others. A technician must confirm through diagnosis whether it needs to be replaced when it shows leaks or does not function properly.
- Type of part
- Filling valves
- Status
- Refurbished
- Catalogue reference
- 1181503
- Warranty
- 1 year
Biasi boilers compatible with reference 1181503
Filling key with reference 1181503. Two confirmed compatibilities: Minox Eco 24E and Minox Eco 24E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Biasi Minox Eco 24E | Manaut | Contrasted |
| Biasi Minox Eco 24E | Biasi | 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. 1181503 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 1181503. 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 filling valve 1181503
The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
A damp ring appears under the tap even though no one has touched it.
Cause: The filling valve is leaking due to a small internal passage that doesn't close completely.
Clean and dry the area, and check after a few hours if it becomes damp again with the valve tightly closed.
- 02
The handle turns freely or is broken at the base.
Cause: The plastic body of the control has broken with use.
Check if the handle is still firmly attached to the shaft or if it moves loosely before replacing the entire valve.
- 03
The pressure in the circuit drops slowly, a few tenths each week.
Cause: Minimal internal leak in the valve that is not visible to the naked eye
Check the pressure one day and then look at it again after two or three days, without touching the radiators, to confirm that it is indeed dropping.
- 04
It resists a lot when opening or closing, more than before.
Cause: Limescale buildup in the internal mechanism of the valve
Try moving it carefully in both directions before forcing it or replacing it.
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.
Fiche of the filling key Biasi 1181503
- Catalogue reference
- 1181503
- Uniclima internal SKU
- LLYHMX24
- Brand
- Manaut
- Type of part
- Filling valves
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the filling key 1181503
Is this filling valve suitable for the Minox Eco 24E boiler?
How many models are compatible with this filling key?
What is the reference for this filling key?
Are there any fault codes associated with this filling valve?
Is this filling key compatible with other boiler models?
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