Filling Key Fagor Contract CE 20E 1N Ref. MU1284700
Refurbished Fagor Filling valves

Filling Key Fagor Contract CE 20E 1N Ref. MU1284700

The Fagor Contract CE 20E 1N Filling Key Ref. MU1284700 is a ball valve designed to replenish water to the heating circuit and recover pressure. If it malfunctions, the user will notice that the circuit cannot be filled or that it is continuously leaking water, which can lead to an increase in pressure. This part is compatible with Fagor boilers from the FE range, such as the FE 24 NOX model, as well as from the FA and CA ranges, including models like FA20E2N and CE20E. A technician must confirm through diagnosis whether it needs to be replaced when leaks or difficulties in filling the circuit are detected.

Type of part
Filling valves
Status
Refurbished
Catalogue reference
MU1284700
Warranty
1 year
VAT included Stock · 6 units
Compatibility

Fagor boilers compatible with reference MU1284700

Filling key with reference MU1284700. Five confirmed compatibilities: FE 24 NOX and FA20E2N.

Verified compatibility

Boiler modelFamilyVerification
Fagor FE 24 NOxFagor FEVerified
Fagor FA20E2NFagor FAVerified
Fagor FA23EFagor FAVerified
Fagor CA24ENFagor CAVerified
Fagor CE20EFagor CEVerified

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if ref. MU1284700 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

  1. Find the reference printed on the installed part and check whether it matches the catalogue reference MU1284700. If it is not visible, do not identify the part from its shape alone.
  2. Check the full boiler model on its data plate and look for it in the model associations on this page.
  3. Compare the connections and physical body with the original part before installation.
  4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Diagnosis and fault codes

Symptoms that require diagnosis in the filling valve MU1284700

The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    When opening the valve to recharge pressure, the pressure gauge rises very slowly or almost not at all.

    Cause: The internal ball-type sphere is blocked by lime or dirt residues from the circuit.

    Open and close several times and see if you notice more resistance than normal when turning or if the water flow is weak.

  • 02

    Lime deposits or moisture appear around the body of the valve.

    Cause: It usually indicates that there has been a small and constant drip for some time, even if it goes unnoticed.

    Completely dry the area and check it again several hours later to confirm if the moisture reappears.

  • 03

    The pressure in the circuit drops slowly but continuously, day after day.

    Cause: The valve does not close completely watertight and gradually lets water seep into the boiler.

    Close the valve completely and monitor the pressure gauge for several hours to see if the pressure drop stops.

  • 04

    The handle is difficult to turn or has broken when trying to do so.

    Cause: The material of the handle becomes brittle over the years and due to proximity to heat.

    Turn it carefully, without forcing it, to check if it responds or if it's already broken inside.

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.

Technical data

Fiche of the filling key Fagor MU1284700

Catalogue reference
MU1284700
Uniclima internal SKU
LLFCE20E1N
Brand
Fagor
Type of part
Filling valves
Units in stock
6 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.

Type
Ball valve
Body finish
Nickel plating
Handle
Dark blue plastic
Frequently asked questions

Frequently asked questions about the filling key MU1284700

Is this ball-type filling valve suitable for the Fagor CE 20 E-1 N boiler?
Yes, the CE 20 E-1 N is on the list of compatible boilers.
What does the filling valve of the CE 20 E-1 N boiler look like physically?
It is a ball type, with a nickel-plated body and a dark blue plastic handle, as seen in the available photos.
Is this same filling key also suitable for the Fagor FA 20 E2 boiler?
Yes, the FA 20 E2 is on the list of compatible boilers, along with other CA, CE, FA, and FE models from the same range.

Spare parts related to Fagor Fagor FA

Delivery calculated by destination Delivery time shown at checkout
1-year warranty inspected and tested
14-day return uninstalled parts
Technical support we verify your model
Filling Key Fagor Contract CE 20E 1N Ref. MU1284700