
Fagor Main Bithermal Heat Exchanger FE 24E N Ref. AS0003105
The main heat exchanger Fagor bitermic FE 24E N is a key component in the boiler that is responsible for transferring heat from the primary circuit to the domestic hot water instantly. If it has faults, you will notice that the water comes out lukewarm or with fluctuating temperatures, and the flow rate of DHW may also decrease. This heat exchanger is compatible with several models, including CE24E/1B, CE24E/1N, FE-24E, among others. It is recommended to replace it when these symptoms of malfunction are observed.
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Consult via WhatsAppFagor boilers compatible with reference AS0003105
Plate heat exchanger with reference AS0003105. 16 verified compatibilities: CE24E/1B and CE24E/1N.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor CE24E/1B | CE24E/1B | Contrasted |
| Fagor CE24E/1N | CE24E/1N | Contrasted |
| Fagor N | FE-24E | Contrasted |
| Fagor FE-24NOX-1B | FE-24NOX-1B | Contrasted |
| Fagor FE-24NOX-1N | FE-24NOX-1N | Contrasted |
| Fagor FE-24NOX/1B | FE-24NOX/1B | Contrasted |
| Fagor FE-24NOX/1N | FE-24NOX/1N | Contrasted |
| Fagor FE-26TC/1B | FE-26TC/1B | Contrasted |
| Fagor FE-26TC/1N | FE-26TC/1N | Contrasted |
| Fagor FE27E | FE27E | Contrasted |
| Fagor FEB24ED3NAT | FEB24ED3NAT | Contrasted |
| Fagor FEB24ED3PROP | FEB24ED3PROP | Contrasted |
| Fagor FEE-24NOX-1B | FEE-24NOX-1B | Contrasted |
| Fagor FEE-24NOX-1N | FEE-24NOX-1N | Contrasted |
| Fagor FEE-26TC-1B | FEE-26TC-1B | Contrasted |
| Fagor FEE-26TC-1N | FEE-26TC-1N | 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 reference AS0003105 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 AS0003105. If it is not visible, do not identify the part by 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 AS0003105 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 comes out at a lower temperature than normal or it takes a long time to heat up completely.
Cause: The plates of the heat exchanger accumulate scale on the inside and transfer heat to the domestic hot water less effectively.
Measure the water hardness in the area before assuming that the heat exchanger is worn out.
- 02
The flow of hot water is weaker than before, even though the overall pressure of the boiler is normal.
Cause: The water flow inside the heat exchanger is narrowing due to the scale buildup in the channels.
Check the cold water inlet filter: it often gets clogged before the heat exchanger itself and gives the same symptom.
- 03
The pressure in the heating circuit drops on its own and it needs to be refilled more than usual.
Cause: An internal leak in the heat exchanger connects the heating circuit with the domestic hot water circuit.
Close the filling valve for a few days and check if the pressure remains stable before replacing the part.
- 04
A boiling noise can be heard inside the boiler when it requests hot water.
Cause: Limescale creates localized hot spots in the heat exchanger that cause the water to boil locally.
Check if the noise only occurs in domestic hot water and not in heating: that points directly to 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.
Plate heat exchanger data sheet Fagor AS0003105
- Catalogue reference
- AS0003105
- Brand
- Fagor
- Type of part
- Plate heat exchanger
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days












