Ariston Microgenus Plus 24 MFFI circulation pump Wilo Ref. NFSL12/6 HE-2 C
The Wilo NFSL12/6 HE-2 C circulator pump (code 4517162, also referred to as NFSL12/6 HE-2 CRR 9 M) circulates water through the boiler circuit. It has two speeds (82 W and 58 W) and operates at 230 V~. It is compatible with the Ariston Microgenus Plus 24 MFFI. It is sold refurbished, tested, and comes with a 1-year warranty.
- Type of part
- Pumps
- Status
- Refurbished
- internal SKU
- BOM075
- Warranty
- 1 year
VAT included Stock · 1 unit
Compatible Ariston boilers
Circulating pump. A proven compatibility: Microgenus Plus 24 MFFI.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Microgenus Plus 24 MFFI | Ariston | 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 it is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Locate the Wilo pump's plate, from the motor, and look for the code 4517162. The second marked code is 4517166.
- Check that the model is NFSL12/6 HE-2 C. It can also be written as NFSL12/6 HE-2C, NFSL 12/6 HE-2 C, or NFSL12-6 HE-2 C. Always compare the number 4517162, not just the name.
- Check that the plate indicates 230 V~, 50 Hz, IP44 and two speeds: 2300 min⁻¹ · 82 W and 2030 min⁻¹ · 58 W.
- The Ariston code 65104558 is a different code from 4517162, and the NFSL12/6 HEP-2 C (2400 min⁻¹ · 83 W) and the HEP-3 are other variants. Always compare 4517162 on the PCB before considering them the same.
- Confirm on the specification plate of the boiler that it is an Ariston Microgenus Plus 24 MFFI. If your boiler is different or you have any doubts, call us at 911 17 77 77 or send us a photo of both plates from Contact.
Technical sheet: Ariston circulator pump
- Uniclima internal SKU
- BOM075
- Brand
- Ariston
- Type of part
- Pumps
- Units in stock
- 1 unit
- 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.
- Reference
- 4517162
- Wilo model
- NFSL12/6 HE-2 C (also written as NFSL12/6 HE-2C, NFSL 12/6 HE-2 C or NFSL12-6 HE-2 C)
- Article name 4517162
- NFSL12/6 HE-2 CRR 9 M
- Second code marked on the PCB
- 4517166
- Brand
- Wilo
- Type
- Two-speed circulation pump
- Series
- RS
- Power supply
- 230 V~ · 50 Hz · single-phase
- Protection
- IP44
- Insulation class
- F (TF95)
- Speed 1
- 2300 min⁻¹ · 82 W · 0.37 A
- Speed 2
- 2030 min⁻¹ · 58 W · 0.27 A
- Status
- Reconditioned and tested
- Warranty
- 1 year
Before purchasing
- Do not confuse with 4517166: Second code marked on the plate next to 4517162. The part reference is 4517162.
- Do not confuse with 65104558: Ariston code for a pump of the Microgenus Plus 24 MFFI. It is a different code from 4517162: always compare the PCB of your pump before considering them the same.
- Do not confuse with NFSL12/6 HEP-2 C: HEP variant, not HE. The HEP marks 2400 min⁻¹ and 83 W; this pump marks 2300 min⁻¹ and 82 W.
- Do not confuse with NFSL12/6 HEP-3: Another variant of the NFSL12/6 family. It is not the HE-2 C.
- Do not confuse with 65120954: Ariston code for the Wilo NFSL/7-50/SC pump. It is another model, not the NFSL12/6 HE-2 C.
Frequently asked questions about the circulation pump
Where is the code for this pump and is it the same as the "NFSL12/6 HE-2 CRR 9 M" from Wilo?
The code 4517162 is on the Wilo pump PCB. The PCB also indicates 4517166. The 4517162 is the article number for the Wilo NFSL12/6 HE-2 CRR 9 M, which is the same item as the NFSL12/6 HE-2 C. Compare the article number, not just the name.
Is it compatible with my Ariston Microgenus Plus 24 MFFI?
Yes. It is compatible with the Ariston Microgenus Plus 24 MFFI. If your boiler is a different model or you have any questions, call us at 911 17 77 77 or send us a photo of the pump's plate and the boiler's specification plate from the Contact section.
What is the difference between the NFSL12/6 HEP-2 C and HEP-3?
They are other variants. The HEP model has 2400 min⁻¹ and 83 W; the HE-2 C model has 2300 min⁻¹ and 82 W. Ours is a two-speed model (82 W and 58 W). Compare the complete model and the code 4517162 on your PCB.
What is the code 65104558 from Ariston and is this pump?
It is an Ariston code for a pump of the Microgenus Plus 24 MFFI, different from 4517162. Do not consider it equivalent without comparing the PCB of your pump. Neither is 65120954, which corresponds to the Wilo NFSL/7-50/SC.
What electrical and speed data does it have?
230 V~, 50 Hz, single-phase, IP44, class F (TF95). It has two speeds: 2300 min⁻¹ · 0.37 A · 82 W and 2030 min⁻¹ · 0.27 A · 58 W.
Can I replace it with another Wilo pump?
Before requesting it, measure the connection of your pump and compare it with the PCB. Consult us before replacing it. It is not a direct change and must be decided by a technician.
Is it tested, does it have a warranty, and who should install it?
Yes. It is sold refurbished, tested, and with a 1-year warranty. It must be installed by a qualified technician: it operates at 230 V~ and is connected to the water circuit of a gas boiler.