Fagor FEB-23E Circulating Pump Wilo RS15/5-3 Ref. 4518919
RefurbishedFagorPumpsWilo

Fagor FEB-23E Circulating Pump Wilo RS15/5-3 Ref. 4518919

Wilo RS15/5-3 circulator pump, with three speeds, for Fagor FEB-23E boilers and related models. It operates at 230V/50Hz, up to PN6 pressure, with three rotational speeds (1600, 2000, and 2200 min-1). Replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler is not heating normally, the pump is making noise, is blocked, or is leaking water from the seal.

Type of part
Pumps
Status
Refurbished
Catalogue reference
4511685
Warranty
1 year
VAT includedStock · 3 units
Compatibility

Fagor boilers compatible with reference 4511685

Circulating pump with reference 4511685. Two confirmed compatibilities: FEB-23E and FEB-23E N.

Proven compatibility

Boiler modelFamilyVerification
Fagor FEB-23EEcominiContrasted
Fagor FEB-23E NEcominiContrasted

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

Guide

How to check if ref. 4511685 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 4511685. 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 circulator pump 4511685

The circulation pump circulates the water in the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    The boiler is working, the burner ignites, but the heating is not heating properly.

    Cause: The water in the circuit does not circulate at the necessary rate because the pump rotor is spinning poorly or not spinning at all.

    Switch between the three speeds of the pump and see if you notice any change in temperature in the radiators.

  • 02

    The pump makes noise or vibrates noticeably.

    Cause: There may be air in the circuit or a worn internal bearing.

    Bleed the heating circuit and check if the noise disappears before replacing the pump.

  • 03

    The water does not circulate through the heating circuit even though the boiler is on.

    Cause: This occurs because the pump does not move the necessary flow due to blockage or internal fault.

    Touch the body of the pump with the heating requesting heat: if you don't feel any vibration, it is likely not spinning.

  • 04

    The pump gets stuck after a long time without using the heating.

    Cause: Lime and debris from the circuit stick to the rotor when the pump is stopped for several weeks or months.

    Try to unlock the shaft manually with a screwdriver through the rear screw of the motor before replacing it.

  • 05

    Water is leaking from the pump seal, next to the motor shaft.

    Cause: The mechanical seal that prevents leaks through the shaft wears out and begins to lose tightness.

    Dry the area and check after a while of operation if the leak reappears right at the body of the pump.

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

Data sheet for the Fagor 4511685 circulation pump.

Catalogue reference
4511685
Uniclima internal SKU
BC23EN
Brand
Fagor
Type of part
Pumps
Units in stock
3 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
RS15/5-3
Wilo code
4518919
Voltage
230V 50Hz
Condenser
2.6uF - 400VDB
Nominal pressure
PN6
Degree of protection
IP44
Insulation class
Class F - TF95
Speeds
III 2200min-1/0.37A/84W; II 2000min-1/0.27A/60W; I 1600min-1/0.18A/42W
Date code (label)
10W37
Frequently Asked Questions

Frequently asked questions about the circulator pump 4511685

Is the Wilo RS15/5-3 pump with code 4518919 compatible with the Fagor FEB-23E?
Yes, the Fagor FEB-23E is on the list of boilers compatible with this pump.
What speeds does the Wilo RS15/5-3 pump have?
It has three rotational speeds: 1600, 2000, and 2200 min-1, selectable according to need.
What pressure does the Wilo RS15/5-3 pump withstand?
It supports a pressure of PN6, according to the pump's data plate.
How many models are compatible with the Wilo RS15/5-3 pump?
In total, there are 2 models confirmed as compatible: FEB-23E and FEB-23E N.
What code should I use when ordering the pump for the Fagor FEB-23E?
You must indicate the Wilo code 4518919, which is the one that appears on the label.

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Fagor FEB-23E Circulating Pump Wilo RS15/5-3 Ref. 4518919