Genus 23 MFFI Boiler Plate Heat Exchanger - Ref. 571646
If you notice that the hot water comes out lukewarm or with fluctuating temperature, you may need a new heat exchanger. This heat exchanger, reference 571646, is compatible with the Genus 23 MFFI boiler and the Microgenus 23 MFFI model. Its function is to transfer heat from the primary circuit to the domestic hot water instantly. When it fails, the flow of domestic hot water decreases, affecting your comfort. It is advisable to replace it when it shows obstructions or heating issues in the water.
VAT included
Consult via WhatsAppAriston boilers compatible with reference 571646
Plate heat exchanger with reference 571646. Two confirmed compatibilities: Genus 23 MFFI and Microgenus 23 MFFI.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Genus 23 MFFI | Genus 23 MFFI | Contrasted |
| Ariston Microgenus 23 MFFI | Microgenus 23 MFFI | 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 ref. 571646 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 571646. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the plate heat exchanger 571646 resolves.
The plate heat exchanger transfers heat to the domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The hot water takes a long time to come out and never reaches the temperature indicated by the control.
Cause: The plates of the heat exchanger have scale and do not transfer heat to the domestic hot water properly.
Measure the temperature with the tap open for several minutes and compare it with the reading on the panel before replacing the part.
- 02
Air needs to be bled from the heating circuit more frequently than usual.
Cause: A perforation in the heat exchanger allows air or mains water to enter the closed circuit.
Check the automatic air vents and the expansion vessel before assuming that the air is coming from the heat exchanger.
- 03
You notice limescale stains or dripping under the heat exchanger area.
Cause: A microcrack in the plates manifests as intermittent dripping in that area.
Dry the area, turn on the domestic hot water for several minutes, and check if it starts to drip again at that exact point.
- 04
The boiler cuts off the supply of hot water if you open a second tap.
Cause: The reduced passage due to limescale in the heat exchanger does not provide enough flow to distribute between two points.
Test the flow rate with one tap and then with two before concluding that the heat exchanger is exhausted.
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.
Data sheet for Ariston plate heat exchanger 571646
- Catalogue reference
- 571646
- Brand
- Ariston
- Type of part
- Plate heat exchanger
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Frequently asked questions about the plate heat exchanger 571646
Is this plate heat exchanger suitable for a Genus 23 MFFI?
Is it compatible with the Microgenus 23 MFFI model?
How many models are compatible with this plate heat exchanger?
What is the reference for this plate heat exchanger?
Are there documented fault codes for this product?
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