Alfa Laval Plate Heat Exchanger Chaffoteaux Alixia 24 FF NG - Ref. 65104333
Heat exchanger for domestic hot water, manufactured by Alfa Laval, installed in Chaffoteaux Alixia, Ariston Clas and Genus, Egis Plus, Matis, and Pigma Green boilers. It transfers heat from the primary circuit to the domestic water. The replacement requires first confirming the fault of the part through technical diagnosis, even when the DHW is intermittent or insufficient, there is mixing between circuits due to internal micro-leaks, or performance decreases due to scale build-up.
- Type of part
- Plate heat exchanger
- Status
- Refurbished
- Catalogue reference
- 65104333
- Warranty
- 1 year
Chaffoteaux boilers compatible with reference 65104333
Plate heat exchanger with reference 65104333. 13 verified compatibilities: Pigma 25 FF and Pigma 30 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Pigma 25 FF | Pigma | Contrasted |
| Chaffoteaux Pigma 30 FF | Pigma | Contrasted |
| Chaffoteaux Pigma Green 25 | Pigma | Contrasted |
| Chaffoteaux Pigma Green 30 | Pigma | Contrasted |
| Chaffoteaux Pigma Evo | Pigma | Contrasted |
| Chaffoteaux Alixia 24 FF | Alixia | Contrasted |
| Chaffoteaux Alixia Green | Alixia | Contrasted |
| Chaffoteaux Niagara C 25 FF | Niagara | Contrasted |
| Chaffoteaux Niagara C Green | Niagara | Contrasted |
| Chaffoteaux Talia 25 FF | Talia | Contrasted |
| Chaffoteaux Talia Green | Talia | Contrasted |
| Chaffoteaux Urbia 25 FF | Urbia | Contrasted |
| Chaffoteaux Urbia Green | Urbia | 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. 65104333 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 65104333. 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 that require diagnosis in the heat exchanger 65104333
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 comes out in bursts, alternating between hot and cold, especially in the shower.
Cause: Limescale clogs the channels of the heat exchanger, causing the flow to vary as it detaches.
Check the water hardness in your area and verify if the installation has a water softener, as without it, limescale will form again.
- 02
It's getting increasingly difficult to get hot water, or it comes out lukewarm even though the thermostat is set to maximum.
Cause: Limescale reduces the contact between the heating circuit and the domestic hot water circuit, decreasing the efficiency of the heat exchange.
Check the age of the heat exchanger and whether any chemical descaling has been performed before considering its replacement.
- 03
When requesting domestic hot water, the pressure in the heating circuit also rises, or vice versa.
Cause: An internal micro-leak between plates connects the two circuits, causing one to pressurize the other.
Check the heating pressure gauge when opening a hot water tap: if the pressure rises, the problem may be in the heat exchanger.
- 04
Cloudy water, with sediment or a strange smell, is coming out of the hot water tap.
Cause: The internal leak between the heating circuit and the domestic hot water circuit mixes additives, contaminating the domestic hot water.
Do not consume that water and check if the problem coincides with pressure spikes in heating before assuming that the part is damaged.
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 Chaffoteaux plate heat exchanger 65104333
- Catalogue reference
- 65104333
- Uniclima internal SKU
- IPA24FF
- Brand
- Chaffoteaux
- Type of part
- Plate heat exchanger
- Units in stock
- 7 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.
- Man No (manufacturer code Alfa Laval)
- T115475.0536 LH T1
- MTS Part No
- 640020000200
- Manufacturing date (YYMMDD)
- 090127
- Barcode / batch
- 204900630536
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Chaffoteaux Niagara C 25 FF Manual (PDF) Document © Chaffoteaux, provided as a technical reference.
Frequently asked questions about the plate heat exchanger 65104333
Is this Alfa Laval heat exchanger suitable for a Chaffoteaux Alixia 24 FF NG?
Which boiler models are compatible with this plate heat exchanger?
What code is engraved on the Alfa Laval heat exchanger of the Alixia 24 FF NG?
What is the date on the Alfa Laval heat exchanger label with reference 65104333?
When should the plate heat exchanger of the Alixia 24 FF NG be replaced?
What is the reference for this plate heat exchanger?
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