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, become locked, or 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. A technician must confirm through diagnosis whether it is necessary to replace it when these symptoms or faults occur.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 0020027631
- Warranty
- 1 year
Renova 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.
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- 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 that require diagnosis on the PCB 0020027631
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.
Renova fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.61 | Fuel control valve error. | This code requires technical diagnosis according to the model manual and its review. It does not confirm on its own that this part is faulty nor justifies its replacement. The causes and the exact reference must be verified before intervening. |
| F.63 | Fault: EEPROM. | This code requires technical diagnosis according to the model manual and its review. It does not confirm on its own that this part is faulty nor justifies its replacement. The causes and the exact reference must be verified before intervening. |
| F.64 | Fault, electronics/temperature sensor. | This code requires technical diagnosis according to the model manual and its review. It does not confirm on its own that this part is faulty nor justifies its replacement. The causes and the exact reference must be verified before intervening. |
| F.65 | Electronic temperature fault. | This code requires technical diagnosis according to the model manual and its review. It does not confirm on its own that this part is faulty nor justifies its replacement. The causes and the exact reference must be verified before intervening. |
| 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
- Uniclima internal SKU
- MDERTF23E
- Brand
- Renova
- Type of part
- PCBs (control boards)
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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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