PCB for Renova Teknic F23E Boiler Ref. 0020027631
The control PCB for the Renova Teknic F23E boiler is the component that manages the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, may lock out, or may exhibit erratic operation. Users may notice faults such as F.61, F.63, F.64, F.65, or F.70. This part is compatible with boilers from the Hermann Renova Teknic range, among others. It should be replaced when these symptoms or faults occur.
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Consult via WhatsAppRenova boilers compatible with reference 0020027631
PCB with reference 0020027631. A proven compatibility: Teknic F23E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Renova Teknic F23E | Hermann Renova Teknic | 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 0020027631 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 0020027631. 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 0020027631 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 shows no signs of life: no pilot light, no display, no fan.
Cause: The power supply stage of the PCB (fuse or internal power supply) has stopped delivering current to the rest of the circuit.
Check that 230V is reaching the power connector of the PCB and that the circuit breaker in the house has not tripped before declaring the PCB faulty.
- 02
An error code appears on the display that repeats every time you reset the boiler.
Cause: The PCB detects an abnormal condition in its ignition sequence and locks the unit for safety.
Note the exact code and check if it corresponds to an external component (sensor, pressure switch, flame) before assuming that the PCB is the cause.
- 03
The room thermostat or the boiler control does not respond to any commands.
Cause: The communication stage of the PCB with the control has stopped working.
Check the bus wiring between the control and the PCB, and test if there is a spare control available to rule out the control itself.
- 04
The boiler turns on and off by itself intermittently, without a clear pattern.
Cause: A relay or output triac on the PCB is intermittently failing and giving erratic on and off commands.
Check if the fault appears the same when cold as when hot; if it only occurs with the boiler hot, it points more towards a thermal component than the PCB.
- 05
A clicking sound is heard on the PCB, but the boiler does not ignite the flame.
Cause: The relay that commands the gas valve is worn out and does not close the contact properly.
Listen to see if the relay click sounds clean or doubtful, and confirm that the gas valve is open before replacing the PCB.
Fault codes for Renova that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.61 | Fuel control valve error. | The control/reading stage of the PCB to the gas valve fails (driver/relay/triac or return reading), blocking the boiler; check the continuity of the harness and measure the control/return signal on the board before replacing the PCB. |
| F.63 | Fault: EEPROM. | Corruption/defect of the EEPROM memory integrated in the PCB; if sensors/wiring are correct and the fault reappears after reset, verification is done by replacing/programming the PCB. |
| F.64 | Fault, electronics/temperature sensor. | The measurement electronics (ADC/reference on PCB) interpret incorrect NTC values; after ruling out NTC/harness, check 5 V/ground and reading stages on the PCB or confirm by substitution. |
| F.65 | Electronic temperature fault. | Overheating measured on the PCB itself (internal sensor or power area); if it persists with proper ventilation and no external heat sources, the PCB is damaged—verify with thermography/sensor and replace. |
| F.70 | Invalid device identification (DSN: "Device Specific Number"). | Mismatch/incorrect coding after changing the display and/or PCB or using an incorrect board; verify/adjust DSN from the service menu or with SAT equipment; if it does not accept coding, the PCB is not the correct one. |
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 0020027631
- Catalogue reference
- 0020027631
- Brand
- Renova
- Type of part
- PCBs (control boards)
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Frequently asked questions about the PCB 0020027631
For which models is the control PCB MDERTF23E compatible?
What are the fault codes that this PCB can resolve?
What symptoms indicate that I should replace the control PCB?
How can I identify the control PCB of the Renova Teknic F23E boiler?
Where can I find more information about the installation of the MDERTF23E PCB?
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