Plate Heat Exchanger Ariston EGIS NOx / Chaffoteaux PIGMA NOx Ref. 65104454
When you turn on the hot water tap, the Ariston EGIS NOX / Chaffoteaux PIGMA NOX Plate Heat Exchanger Ref. 65104454 is responsible for transferring heat from the primary circuit to the domestic hot water instantly. If this part fails, you will notice that the water comes out lukewarm or with fluctuating temperature, and the flow rate of domestic hot water may decrease. This heat exchanger is compatible with models such as EGIS NOX 24 FF and 28 FF from Ariston, as well as PIGMA NOX 24 FF and 28 FF from Chaffoteaux, among other boilers. It is recommended to replace it when you experience these symptoms of malfunction.
VAT included
Consult via WhatsAppAriston boilers compatible with reference 65104454
Plate heat exchanger with reference 65104454. Four confirmed compatibilities: EGIS NOX 24 FF and EGIS NOX 28 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston EGIS NOx 24 FF | Ariston EGIS NOX | Contrasted |
| Ariston EGIS NOx 28 FF | Ariston EGIS NOX | Contrasted |
| Ariston PIGMA NOx 24 FF | Chaffoteaux PIGMA NOX | Contrasted |
| Ariston PIGMA NOx 28 FF | Chaffoteaux PIGMA NOX | 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 the ref. 65104454 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 65104454. 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 heat exchanger 65104454 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 reach the temperature you set, or it never gets fully heated.
Cause: The accumulated scale in the heat exchanger channels prevents heat from transferring from the primary circuit to the domestic hot water.
First, check the set temperature of the domestic hot water and if the burner is working correctly when requesting hot water.
- 02
Less hot water flow is coming out than cold water from the same faucet.
Cause: A heat exchanger with clogged plates reduces the flow of domestic hot water and, therefore, the flow rate.
Check the water inlet filter of the boiler before replacing the part: it usually accumulates scale and sediment before the heat exchanger.
- 03
The heating circuit is losing pressure over time without any visible leaks.
Cause: An internal leak in the heat exchanger can mix water between the two circuits without being noticeable outside the boiler.
Before considering the heat exchanger, rule out the expansion vessel and the bleed valves, as they are the most common cause of this problem.
- 04
The boiler heats the heating system well, but the domestic hot water comes out with less pressure or intermittently.
Cause: The narrowing of the channels due to scaling affects the domestic hot water circuit more, which is usually the narrowest passage in this component.
Check the incoming water pressure and the condition of the filter before assuming it is the heat exchanger.
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 the Ariston plate heat exchanger 65104454
- Catalogue reference
- 65104454
- Brand
- Ariston
- Type of part
- Plate heat exchanger
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Frequently asked questions about the plate heat exchanger 65104454
Does this part also fit the Chaffoteaux PIGMA NOX 24 FF?
How does the plate heat exchanger of the Ariston EGIS NOX 24 FF transfer heat?
Does this part also fit the Ariston UNO23MFFIMET?
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