Wilo FRSL15/4.1 HE-3 KU C Ferroli – Ref. 39818451

The heating pump for various Ferroli wall-mounted boilers. It is the Wilo FRSL15/4.1 HE-3 KU C three-speed version, in Ferroli ("FL") version.

Type of part: Ferroli
Status: Refurbished
internal SKU: BCEMLN24E
Warranty: 1 year

VAT included OUT OF STOCK

Compatibility

Compatible Ferroli boilers

Ferroli. A proven compatibility: Divaproject C24, Divatech C24 D, and Divatop Micro F24. There are another 15 models that we are still verifying.

Proven compatibility

Boiler model	Family	Verification
Ferroli Divaproject C24, Divatech C24 D and Divatop Micro F24	Ferroli	Contrasted

Models pending verification

These models are associated with this reference, but we have not finished verifying them yet, so we do not consider them compatibleIf your boiler is one of them, send us a photo of the part you are going to replace and we will verify it before you purchase.

Ferroli Divaproject F24, Divatech F24 D and Domiproject F24 D	Ferroli	Unconfirmed
Ferroli Domiproject C24 D, Domitech C24 D and FEReasy C24 D	Ferroli	Unconfirmed
Ferroli Divatop HC24 and HF24	Ferroli	Unconfirmed
Ferroli Divatech F32 D, Divatop C24 and F24	Ferroli	Unconfirmed
Ferroli Divatech C24, F24, C32 D, Micro F24 and Micro LN F24 D	Ferroli	Unconfirmed
Ferroli Divatop Micro C24, Diva C24 and F24	Ferroli	Unconfirmed
Ferroli Domicompact (various versions), Domicondens F24 and F28	Ferroli	Unconfirmed
Ferroli Domina C24 N and F24 N, Domiproject C24, C32 and F32, Fereasy C24, F24, C32 and F32, Ferella Zip, Fertech F24 B and F28 B	Ferroli	Unconfirmed
Ferroli Domitech F24 D, Fertech C24 N, Divaproject F24 N, Divatech C24 N and F24 N, Domiproject C24 N, Domitech C24 N, Easytech C24 N and F24 N, Easybox F24 N and Domi Insert F24 N	Ferroli	Unconfirmed
Ferroli FEReasy C24 N, FEReasy F24 D and Fertech F24 N	Ferroli	Unconfirmed
Ferroli Fertech 31C, Modena HE 18S, 25S and 27C, Optimax HE 25S	Ferroli	Unconfirmed
Ferroli Econcept Tech and Bluehelix (condensing)	Ferroli	Unconfirmed
Ferroli Lamborghini Ninfa D 24, DYN 24, Fast 24, N 24 MCA and MCS, Taura D 24 and IN 24 MCS	Ferroli	Unconfirmed
Ferroli Lamborghini Taura 24 MC and MCS	Ferroli	Unconfirmed
Ferroli Cointra (Essential, Excellent, Superlative, Fersystem)	Ferroli	Unconfirmed

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

Guide

How to check if it is the part for your boiler

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

The motor label says "Wilo FRSL15/4.1 HE-3 KU C" (it may carry the marking "Réf FL").
Compare the reference Ferroli 39818451 and the previous one 39818450 with the label. The code 39847401 appears as a possible successor, but its equivalence with this unit is pending confirmation; the similarity in name is not sufficient.
It has three speeds: 36, 54, and 70 W.
Any questions? Send us a photo of the label and the PCB of your boiler from Contact.

Diagnosis and fault codes

Symptoms that require diagnosis in the Ferroli.

Common symptoms and faults

01
The boiler turns on but the radiators do not heat up or take a long time to do so.
Cause: Touch the pump while it's running: if it doesn't vibrate, there's no circulation. Also, check that the valves are open.
02
New buzzing or vibration.
Cause: Bleed the air from the circuit before declaring the pump faulty.
03
Water or limescale residues at the base of the pump.
Cause: The shaft seal is worn out.
04
The pump does not start after the summer.
Cause: The rotor may be jammed due to sediment.
05
The boiler locks out due to overheating.
Cause: There may be a circulation issue.

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

Ferroli

Uniclima internal SKU: BCEMLN24E
Brand: Ferroli
Type of part: Ferroli
Units in stock: 0 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.

Commercial reference: 4517673
Number marked on the spare part label: 4516608
Marked reference: FL
Marked code: 07W14
Subtype: Typ B
Insulation class: F
Nominal pressure: PN6
Winding thermal class: TF95
Degree of protection: IP44
Condenser: 2 µF
Power supply: ~230 V, 50 Hz
Speed I: 0.16 A / 36 W
Speed II: 0.24 A / 54 W
Speed III: 0.30 A / 70 W
Manufacturing: EU
Source of additional data: Declared information; auxiliary references and applications without equivalent from the accredited manufacturer.
Inventory — Marked code: 4516608; 07W14; FL
Verified data — Pump: Wilo FRSL15/4.1 HE-3 KU C (Ferroli "FL" version)
Verified data — Power (3 speeds): 36 / 54 / 70 W
Verified data — Intensity (3 speeds): 0.16 / 0.24 / 0.30 A · our inventory
Verified data — Power supply: ~230 V · 50 Hz
Verified data — Condenser: 2 µF
Verified data — Protection: IP44 · class F
Verified data — Thermal class of the winding: TF95 · our inventory
Verified data — Nominal pressure: PN6
Verified data — Body: Plastic, clockwise rotation
Verified data — Weight: ≈ 2 kg
Registered model: FRSL15/4.1 HE-3 KU C
Identification and equivalences: 39818451 = Wilo FRSL15/4.1 HE-3 KU C · previously 39818450
Associated references: Ferroli 39818451 (formerly 39818450) · alias I39818451
Additional markings: Wilo 4516608 (on the label; ) · other Wilo numbers for the same pump: 4516606 (Uniclima), 4522539, 4516607 (motor), 4516610 · inventory 4517673 and batch 07W14 (unconfirmed) · marked "Réf FL" (Ferroli variant according to Wilo)
Pending applications to verify: To confirm: • Ferroli (71 models): Divatech C24 / F24 / C32 D / Micro F24 / Micro LN F24 D · Divatop Micro C24 · Diva C24 / F24 · Domicompact (various) · Domina C24 N / F24 N · Domicondens F24 / F28 · Fereasy C24 / F24 / C32 / F32 · Ferella Zip · Fertech F24 B / F28 B · Econcept Tech 25C / 25A · Bluehelix Pro / Tech 25 C · and variants N / new. • Lamborghini (40 models: Ninfa, Taura…): . • Cointra (Essential, Excellent, Superlative, Fersystem; 12): . • Note: Econcept Tech and Bluehelix (condensing) may require a different pump (mentioning a Wilo FRSL15/6B).
Registered equivalents and substitutions: Ferroli 39818451 sustituye a 39818450 ( ×2). Alias en: I39818451. 39847401 (Wilo Para VRSL/6-50, velocidad variable) aparece como «análogo» en y NO es equivalente (no tiene 3 velocidades). Wilo da el artículo 4527763 («FERROLI / L») sustituido por 4535243: no está demostrado que sea esta pieza.

Before purchasing

This pump does not have its own electronics: the boiler provides the code. Check your Ferroli manual. Install new gaskets.
To confirm: Divaproject F24, Divatech F24 D and Domiproject F24 D — (Domiproject F24 D: )
To confirm: Domiproject C24 D, Domitech C24 D, and FEReasy C24 D
To confirm: Divatop HC24 and HF24
To confirm: Divatech F32 D, Divatop C24 and F24
To confirm: Divatech C24, F24, C32 D, Micro F24 and Micro LN F24 D; C32 D
To confirm: Divatop Micro C24, Diva C24 and F24;
To confirm: Domicompact (various versions), Domicondens F24 and F28; Domicompact F24 B, F24 D and F30 D; Domicondens 24, 28 and HE 26
To confirm: Domina C24 N and F24 N, Domiproject C24, C32 and F32, Fereasy C24, F24, C32 and F32, Ferella Zip, Fertech F24 B and F28 B, some only by family (Domiproject: )
To confirm: Domitech F24 D, Fertech C24 N, Divaproject F24 N, Divatech C24 N and F24 N, Domiproject C24 N, Domitech C24 N, Easytech C24 N and F24 N, Easybox F24 N and Domi Insert F24 N; Fertech C24 N
To confirm: FEReasy C24 N, FEReasy F24 D and Fertech F24 N
To confirm: Fertech 31C, Modena HE 18S, 25S and 27C, Optimax HE 25S
To confirm: Econcept Tech and Bluehelix (condensing) — They could use another pump (Wilo FRSL15/6B)
To confirm: Lamborghini Ninfa D 24, DYN 24, Fast 24, N 24 MCA and MCS, Taura D 24 and IN 24 MCS — (possible common catalog)
To confirm: Lamborghini Taura 24 MC and MCS
To confirm: Cointra (Essential, Excellent, Superlative, Fersystem) — Not confirmed: the quote only by brand
Do not confuse: 39847401 — Subsequent code; identity unconfirmed — registered designation: FRSL15/4.1-HE-3 KU C and FRSL6-50; indicated after 39818451. Compare the label.
39818451 is recorded as the successor of 39818450. The relationship with 39847401 is contradictory: the designations FRSL15/4.1-HE-3 KU C and FRSL6-50 appear, which are not considered interchangeable. This unit is identified as Wilo FRSL15/4.1 HE-3 KU C; compare the label and the type of regulation before replacing it.

Frequently Asked Questions

Frequently asked questions: Ferroli

What pump does the Ferroli Divatop C24 use?

Registered application for the Divatop C24: Wilo FRSL15/4.1 HE-3 KU C, ref. Ferroli 39818451 (previously 39818450). Not confirmed: other Divatop models, but not the C24.

Are 39818450 and 39818451 the same pump?

39818450 is registered as the previous code associated with 39818451. The 39840920 remains unconfirmed. It is also not confirmed that 39847401 is a valid replacement for this unit: compare model, version, and label before treating those numbers as equivalents.

Is it compatible with the Ferroli Domiproject C24?

Unconfirmed: the C24 without "D". They refer to the C24 D and the F24 D (with the same label number, 4516608). Send us the PCB.

Is it compatible with Lamborghini or Cointra boilers?

Not confirmed. Application registered for Lamborghini Ninfa and Taura, the first after verifying the serial number with their technical service. Cointra: identification only by brand. Send us the PCB.

How many speeds does it have?

Three: 36, 54, and 70 W (0.16, 0.24, and 0.30 A). It rotates clockwise and weighs about 2 kg.

What numbers are on the label?

The motor says Wilo FRSL15/4.1 HE-3 KU C, number 4516608 and "Réf FL" (Ferroli version). Registered data: reference 4517673, fault code 07W14. In Ferroli it is 39818451.

Is the 39847401 the same pump?

It is not confirmed that 39847401 corresponds to this same pump. It is recorded as a possible successor to 39818451, but it is associated with both FRSL15/4.1-HE-3 KU C and FRSL6-50. Those designations do not prove equivalence of regulation or execution. Compare the label.

Is it compatible with other Ferroli models (versions "N", Modena, Optimax…)?

To be confirmed: We still do not consider it confirmed. The "N" versions (Fertech C24 N, Divatech, Domiproject…) come in one or Italian; add Domicompact, Domicondens, Fertech 31C, Modena HE, and Optimax HE 25S. Send us the PCB.

What model and reference can be read on the PCB?

Wilo FRSL15/4.1 HE-3 KU C; the printed reference is 4517673 and N°4516608 also appears on the lower sticker.

What power ratings does it offer?

Three speeds: 36 W/0.16 A, 54 W/0.24 A, and 70 W/0.30 A.

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Wilo FRSL15/4.1 HE-3 KU C Ferroli – Ref. 39818451