Plate Heat Exchanger for Baxi Roca Isofast F 35 E - Ref. 57330
The plate heat exchanger for the Isofast F 35 E boiler - Ref. 57330 is a component that transfers heat from the primary circuit to the domestic hot water instantly. When it experiences faults, such as blockages, the water may come out lukewarm or with fluctuating temperatures, in addition to a noticeable decrease in the flow of hot water. This heat exchanger is compatible with several models from the Isofast, Isomax, and Isotwin ranges, including the Isofast C 28 E and the Isomax F 28. It is recommended to replace it when these symptoms of malfunction are detected.
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Consult via WhatsAppSaunier Duval boilers compatible with reference 57330
Plate heat exchanger with reference 57330. 15 verified compatibilities: Isofast C 28 E and Isofast C 28 E1.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Isofast C 28 E | Isofast | Contrasted |
| Saunier Duval Isofast C 28 E1 | Isofast | Contrasted |
| Saunier Duval Isofast C 35 E | Isofast | Contrasted |
| Saunier Duval Isofast F 28 E | Isofast | Contrasted |
| Saunier Duval Isofast F 28 E1 | Isofast | Contrasted |
| Saunier Duval Isofast F 35 E | Isofast | Contrasted |
| Saunier Duval Isofast F 35 E1 | Isofast | Contrasted |
| Saunier Duval Isomax C 28 E | Isomax | Contrasted |
| Saunier Duval Isomax F 28 E | Isomax | Contrasted |
| Saunier Duval Isomax C 28 E2 | Isomax | Contrasted |
| Saunier Duval Isomax F 28 E2 | Isomax | Contrasted |
| Saunier Duval Isotwin C 24 EA | Isotwin | Contrasted |
| Saunier Duval Isotwin C 28 EA | Isotwin | Contrasted |
| Saunier Duval Isotwin F 24 E | Isotwin | Contrasted |
| Saunier Duval Isotwin F 24 EA | Isotwin | 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 part number 57330 is the one 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 57330. 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 57330 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 flow fluctuates in temperature while you are showering.
Cause: A step blocked by scale causes the secondary flow to vary and the mixture with the cold water to remain unstable.
Close and open the tap several times in a row and observe if the temperature fluctuation is always the same; this indicates a blockage in the heat exchanger.
- 02
The hot water comes out with less pressure than the cold water from the same tap.
Cause: The accumulated scale on the plates narrows the passage through which the domestic hot water flows.
Check if the cold water inlet filter is clean before discarding the heat exchanger; a dirty filter gives the same symptom.
- 03
The hot water from the tap comes out cloudy or with a color different from usual.
Cause: If the PCBs are cracked, the water from the heating circuit seeps into the domestic hot water circuit.
Do not use that water for consumption and check if the heating pressure is lower than normal at the same time.
- 04
The boiler takes a long time to provide hot water even though the burner is on.
Cause: The embedded plates transfer heat from the primary circuit to the secondary circuit less efficiently.
Measure how long it takes for hot water to come out after you open the tap and compare it with how long it took before; a noticeable increase indicates a loss of efficiency.
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 Saunier Duval 57330
- Catalogue reference
- 57330
- Brand
- Saunier Duval
- Type of part
- Plate heat exchanger
- Units in stock
- 4 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Frequently asked questions about the plate heat exchanger 57330
Is this plate heat exchanger suitable for the Isofast C 35 E?
Is this heat exchanger compatible with an Isotwin F 24 E?
What function does this heat exchanger serve in the Isofast F 35 E?
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