
Hermann Saunier Duval Renova Micra 23 SE 12 Plate Heat Exchanger Ref. H015002479
The plate heat exchanger Hermann Saunier Duval Renova Micra 23 SE 12 transfers heat from the primary circuit to the domestic hot water instantly. When it malfunctions, the water comes out lukewarm or with fluctuating temperature, and the flow rate of DHW decreases. This model is compatible with various boilers, such as the Micra 23 E, Micra 23 SE, Micra 24 E, among others. It is recommended to replace it when you notice these issues in the hot water supply.
VAT included
Consult via WhatsAppRenova boilers compatible with reference H015002479
Plate heat exchanger with reference H015002479. 14 verified compatibilities: Micra 23 E and Micra 23 SE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Renova Micra 23 E | Hermann Micra | Contrasted |
| Renova Micra 23 SE | Hermann Micra | Contrasted |
| Renova Micra 24 E | Hermann Micra | Contrasted |
| Renova Micra 24 SE | Hermann Micra | Contrasted |
| Renova Micra 28 E | Hermann Micra | Contrasted |
| Renova Micra 2 24 E | Hermann Micra 2 | Contrasted |
| Renova Micra 2 24 SE | Hermann Micra 2 | Contrasted |
| Renova Micra 2 30 SE | Hermann Micra 2 | Contrasted |
| Renova Supermicra 28 E | Hermann Supermicra | Contrasted |
| Renova Supermicra 30 SE | Hermann Supermicra | Contrasted |
| Renova Supermicra Ecoplus 24 SE | Hermann Supermicra | Contrasted |
| Renova Habitat Plus 23 E | Hermann Habitat Plus | Contrasted |
| Renova Habitat Plus 23 SE | Hermann Habitat Plus | Contrasted |
| Renova Thema F24 NOx | Saunier Duval Thema | 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 H015002479 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 H015002479. 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 H015002479 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 loses pressure a few seconds after opening the tap.
Cause: The plates of the heat exchanger are becoming coated with scale on the inside and are no longer transferring heat effectively from the primary circuit to the domestic hot water.
Check if the temperature improves by reducing the flow of the tap; if it improves, focus more on limescale buildup than on the broken part.
- 02
The heating pressure rises on its own or the expansion vessel is leaking without any visible external leak from the boiler.
Cause: An internal crack in the heat exchanger allows water from the domestic circuit to flow into the heating circuit, which pushes the pressure up.
Close the filling valve for a couple of days and check if the pressure rises the same without having touched anything, indicating that water is entering from inside.
- 03
Hot water is coming out of a hot water tap even when it is closed, or the heating circuit is losing pressure for no apparent reason.
Cause: The heat exchanger mixes the two circuits when the plates are perforated or heavily corroded on the inside.
With the boiler cold, open only the heating filling valve and check if water comes out from any closed domestic tap.
- 04
There is a visible water leak in the heat exchanger body itself, between the plates or through the joints.
Cause: The gasket sealing the plate pack has degraded due to the heating cycles of the boiler.
Dry the area well, turn on the boiler, and check if the drop reappears right on the body of the heat exchanger before concluding.
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 sheet Renova H015002479
- Catalogue reference
- H015002479
- Brand
- Renova
- Type of part
- Plate heat exchanger
- Units in stock
- 6 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.
- Code printed on label
- PP13CEBH12 250210 13
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Renova Micra 2 24 SE Manual (PDF)Document © Renova, provided as a technical reference.












