Wilo HB15/5-2 pump Saunier Duval – Ref. 0020016475

Bomba Wilo HB15/5-2 que mueve el agua de calefacción entre la caldera y los radiadores. Referencia 0020016475 y n.º 4516718, asociados a este modelo de bomba.

Type of part: Saunier Duval
Status: Refurbished
internal SKU: BCSDTCF24
Warranty: 1 year

VAT included OUT OF STOCK

Compatibility

Compatible Saunier Duval boilers

Saunier Duval. Three confirmed compatibilities: Saunier Duval Thema Condens F24 and Saunier Duval Thema NOx F25 B/2. There are another 3 models that we are still verifying.

Proven compatibility

Boiler model	Family	Verification
Saunier Duval Thema Condens F24	Saunier Duval	Contrasted
Saunier Duval Thema NOx F25 B/2	Saunier Duval	Contrasted
Saunier Duval Thema Condens	Saunier Duval	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.

Saunier Duval Thema NOx F25e and ThemaFast NOx F25e	Saunier Duval	Unconfirmed
Saunier Duval Thema Condens F18, F30E, F AS 24 E and other versions	Saunier Duval	Unconfirmed
Saunier Duval Themafast NOx F30 and Themaplus Condens F30E	Saunier Duval	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.

Look at the motor label: it should say Wilo HB15/5-2 and the number 4516718. Ours also has 11W34, 1104081, 901134, 401891, and 007783 T3.
Look for the reference Saunier Duval 0020016475. If your pump has a different one, such as 0020087275 or 0020016471, please consult us before purchasing.
Compare the electrical data: 62 W and 0.27 A at speed I, 83 W and 0.36 A at speed II, and a capacitor of 2.6 µF.
If your boiler is a Saunier Duval Thema Condens F24 or Thema NOx F25 B/2, this pump has already been confirmed. If it is another model, please send us a photo of your pump's label and your boiler's control board from the Contact section, or call us at 911 17 77 77.

Diagnosis and fault codes

Symptoms that require diagnosis in the Saunier Duval.

Common symptoms and faults

01
The radiators are not heating or take a long time, even though the boiler turns on.
Cause: Check that the pump is running, that the circuit has pressure, and that it is properly bled.
02
The pump makes noise or vibrates.
Cause: Bleed the air from the circuit. If the noise persists, the bearing may be worn out.
03
The pump hums but does not rotate after weeks of being idle.
Cause: The rotor may be stuck due to scale or sludge: a technician can free it before replacing it.
04
Water is leaking from the pump or its seals.
Cause: Dry the area and locate the leak: it could be a gasket or the shaft seal.
05
The boiler locks out or shuts down due to excessive temperature.
Cause: There may be a circulation issue: check the pump, the circuit valves, and the filters.

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

Saunier Duval

Uniclima internal SKU: BCSDTCF24
Brand: Saunier Duval
Type of part: Saunier Duval
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: 0020016475
Identifier of the PCB: 4516718
Insulation class: F
Nominal pressure: PN3
Maximum fluid temperature: TF95
Degree of protection: IP44
Condenser: 2.6 μF
Electrical supply: 230 V~; 50 Hz
Speed I: 0.27 A; 62 W
Speed II: 0.36 A; 83 W
Place of manufacture: EU
Printed marking: 11W34
Verified data — Pump: Wilo HB15/5-2
Verified data — Wilo No.: 4516718
Verified data — Speed I: 62 W · 0.27 A
Verified data — Speed II: 83 W · 0.36 A
Verified data — Power supply: 230 V · 50 Hz
Verified data — Condenser: 2.6 µF
Verified data — Protection: IP44 · class F
Verified data — Water temperature: Up to 95 °C (TF95)
Verified data — Nominal pressure: PN3 (3 bar)
Verified data — Origin: Made in EU
Pending applications to verify: • Thema Condens F24 (almacén): con 0020016475. (Thema Condens F24) y (Thema Condens F 24 E) le dan otro código, 0020087275; Designación registrada: la F 24 E el motor S1061900 (obsoleto). • Thema Nox F25-B/2 (almacén). da 0020087275 para la Thema Nox F25 B/1 (no B/2); la ficha abierta «Thema NOx F25» no dice qué bomba lleva. • «Saunier Thema Condens» (almacén): no dice el modelo; no se puede comprobar. • Semia Tek F24 y Themafast NOx F25-A · Themafast Condens F24 y F30: las dan para 0020087275, no para 0020016475. • Las 8 «contrastadas» de Uniclima (Thema Condens F AS 24 E, F18, F24 y F30E · Themafast Condens F24E y F30E · Themafast NOx F30 · Themaplus Condens F30E): válidas.
Registered equivalents and substitutions: Sin equivalencias confirmadas para 0020016475. • 0020087275 (280.66.0029 ): lo vende como HB15/5-2, e y lo dan para la Thema Condens F24 / F 24 E. sin confirmación adicional lo iguala con 0020016475 ni habla de sustitución. • 0020087276: solo es la referencia de catálogo de Uniclima; sin confirmación adicional la une a esta bomba. • S1061900: motor (obsoleto) que Designación registrada: la Thema Condens F 24 E, sin modelo de bomba. No confundir con la Wilo HB15/6-2 ( de la da con 0020016471) ni con la INTHB 15/5-2 (Nº 4520784; #5 y #7 del inventario).

Before purchasing

To confirm: Thema NOx F25e and ThemaFast NOx F25e, with reference 0020016475
To be confirmed: Thema Condens F18, F30E, F AS 24 E and other independent versions — not confirmed.
To confirm: Themafast NOx F30 and Themaplus Condens F30E — unconfirmed independent
Not compatible or excluded: Thema NOx F25 B/1 — According to the pump 0020087275; it is not listed as equivalent.
Not compatible or excluded: Semia Tek F24 and Themafast NOx F25-A — According to the pump 0020087275; it is not listed as equivalent.
Not compatible or excluded: Themafast Condens F24 and F30 — According to the pump 0020087275; it is not listed as equivalent.
Do not confuse: Wilo HB15/6-2 (0020016471) — Another Wilo model that is compatible with the Thema F 25 E-B — Another pump: check the model on your label.
Do not confuse: Wilo INTHB15/5-2 (no. 4520784) — "INT" version of the HB15/5-2 that is sold — Another Wilo number: it is not stated to be equivalent.
Do not confuse: 0020016471 / Wilo 4516713 — Codes provided for a Wilo HB15/5-2 — Only the last digit changes, but they are not the same: compare digit by digit.
Registered confirmation: the Wilo HB15/5-2 pump, reference 0020016475, number 4516718, and the Saunier Duval Thema Condens F24, Thema NOx F25 B/2, and Thema Condens. Between, of and the technical sheet unites the 0020016475, the 4516718, and the HB15/5-2; no official document consulted cites that reference. It gives TF96 and 230 V 60 Hz; the data (TF95 and 230 V 50 Hz) prevail.

Frequently Asked Questions

Frequently asked questions: Saunier Duval

Is it compatible with my Thema Condens F24 or my Thema NOx F25 B/2?

Yes. Confirmation registered: this pump (reference Saunier Duval 0020016475, no. Wilo 4516718) for the Saunier Duval Thema Condens F24, the Thema NOx F25 B/2, and the Saunier Thema Condens, also fits the Thema Condens F24. If your boiler is another model, please send us a photo of its label and your pump's label from Contact, or call us at 911 17 77 77.

Are 0020016475 and 0020087275 the same pump?

It is not stated that they are. The 0020087275 is sold as Wilo HB15/5-2, the same model, but none indicate that it replaces the 0020016475, which is the one that confirms. For the Thema Condens F24, the 0020087275 and the British pump motor S1061900: send the workshop confirmation. If your pump has the 0020087275, consult us before purchasing.

Is it an HB15/5-2 or an HB15/6-2?

It is an HB15/5-2: this is confirmed by the label, and it is also provided with that model for 0020016475. It offers an HB15/6-2 with another code, 0020016471, and it gives an HB15/5-2 with that same 0020016471 and the Wilo number 4516713. Those codes do not match and are not consistent with each other. Please check the model and codes on your label.

How many speeds does it have?

Two, according to the label: 62 W and 0.27 A in I, and 83 W and 0.36 A in II. It operates at 230 V and 50 Hz.

Does it also fit in the Thema NOx F25e or in the ThemaFast NOx F25e?

for the Thema NOx F25e and ThemaFast NOx F25e with reference 0020016475. It is a single one and those models are not listed among the confirmed boilers. Compare the code of your pump or send us a photo of the label and the PCB of your boiler from Contact.

Where can I find the codes for this pump?

The motor label carries the model Wilo HB15/5-2 and the number 4516718. The pump has the marking 11W34 printed on it, which is not interpreted, and the label has the identifiers 1104081, 901134, 401891, and 007783 T3. The Saunier Duval reference is 0020016475. Registered confirmation: these codes, along with 0020016475, 4516718, and HB15/5-2, are linked.

Which boilers use 0020087275 instead of this pump?

the 0020087275 (one, like Wilo HB15/5-2) for the Thema Condens F24 and F24 E, the Themafast Condens F24 and F30, the Semia Tek F24, the Themafast NOx F25-A and the Thema NOx F25 B/1. For the Thema Condens F24 and the Thema NOx F25 B/2, registered confirmation: the 0020016475. For the others, compare the code of your pump or send us a photo of the label from Contact.

Can I change it myself?

No: the pump operates at 230 V and is part of the heating water circuit. It must be installed by a qualified technician.

What reference and unit appear on the label?

Wilo HB15/5-2, reference 0020016475 and unit number 4516718.

What electrical characteristics are legible?

~230 V at 50 Hz, 2.6 µF capacitor, 0.27 A/62 W in I and 0.36 A/83 W in II; the plate indicates Class F, PN3, TF95, and IP44.

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Wilo HB15/5-2 pump Saunier Duval – Ref. 0020016475