
Hermann Micra 23 SE PCB (control board)
The control PCB of the Hermann Micra 23 SE manages the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, lock out, or behave erratically. This model is compatible with the Renova Micra range, including the Renova Micra 23 SE model, among others. It is replaced when these symptoms occur or if a malfunction in the boiler control is detected.
VAT included
Consult via WhatsAppRenova boilers compatible with reference 052002484
PCB with reference 052002484. A proven compatibility: Renova Micra 23 SE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Renova Renova Micra 23 SE | Renova Micra | 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 ref. 052002484 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 052002484. 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 PCB 052002484 resolves.
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler is completely off, with no indicator lights or display.
Cause: The PCB is not receiving or distributing power to the rest of the control circuit.
Check that there is voltage at the boiler's power supply and that the main switch is in the correct position before replacing the PCB.
- 02
A fault code appears and reappears immediately after resetting.
Cause: The PCB shuts down the operation because a safety signal is outside the expected values.
Identify the code and check the associated component (flame, pressure, sensor) before blaming the PCB.
- 03
Clicking sounds from a relay on the PCB can be heard even though the boiler does not start.
Cause: A relay with poor contact, like the one marked on the label of this PCB, tries to switch without succeeding.
Listen to see if the clicking coincides with the moment of the heat demand; if so, the relay on the PCB is suspect.
- 04
The electronic control does not respond to any button on the panel.
Cause: The microcontroller on the PCB has locked up and stops processing commands.
Cut the power for a few seconds to force a complete reset before replacing the PCB.
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 PCB Renova 052002484
- Catalogue reference
- 052002484
- Brand
- Renova
- Type of part
- PCBs (control boards)
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- 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.
- Partial relay code
- 6270
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Renova Micra 23 SE Manual (PDF)Document © Renova, provided as a technical reference.












