
Baxi Eco 240 FI Domestic Plate Heat Exchanger Ref. JJJ005686660
When you open the hot water tap, the Baxi Eco 240 FI Plate Heat Exchanger is responsible for transferring heat from the primary circuit to the water, ensuring a constant supply of hot water. If this part fails, you will notice that the water comes out lukewarm or has fluctuating temperatures, as well as a decrease in the flow of domestic hot water. It is compatible with boilers from the Eco range, such as the Eco 240 i and Eco 240 Fi models, as well as from the Eco3 range, including the Eco3 240 i and Eco3 240 Fi. It is recommended to replace it when the mentioned symptoms appear, as this indicates a possible blockage or problem in heat transfer.
VAT included
Consult via WhatsAppBaxi boilers compatible with reference JJJ005686660
Plate heat exchanger with reference JJJ005686660. Four confirmed compatibilities: Eco 240 i and Eco 240 Fi.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Eco 240 i | Eco | Contrasted |
| Baxi Eco 240 Fi | Eco | Contrasted |
| Baxi Eco3 240 i | Eco3 | Contrasted |
| Baxi Eco3 240 Fi | Eco3 | 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 JJJ005686660 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 JJJ005686660. 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 JJJ005686660 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 lukewarm or the temperature fluctuates while you are showering.
Cause: The plates have accumulated scale and do not transfer heat to the domestic hot water effectively.
Check if the water in the area is hard and if the boiler has not been descaled for a long time.
- 02
Water is dripping from underneath the boiler, near where the heat exchanger is mounted.
Cause: A joint or weld in the plate pack is leaking water.
Dry the area, turn on the boiler, and check if the dripping comes from the heat exchanger or a nearby fitting.
- 03
It takes longer than usual to get hot water when turning on the tap.
Cause: The passage between the plates is being obstructed by limescale deposits, which reduces the flow of hot water.
Open the hot water tap to the maximum and compare the flow rate with the previous one: if it has decreased, it is likely that there is scaling.
- 04
When requesting hot water, the heating pressure rises on its own on the manometer.
Cause: An internal microcrack allows water from one circuit to mix with that of another within the heat exchanger.
Check the pressure gauge just when you open the hot water tap to see if the pressure rise matches that consumption.
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 Baxi JJJ005686660
- Catalogue reference
- JJJ005686660
- Brand
- Baxi
- 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
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Number of PCBs
- 10




