Fagor Ecocompact Control PCB FEE-20 Cod. MU 8134
PCB with Fagor logo printed, identified by the EPROM code MU 8134 / FEEC06 (646CH) and the main integrated circuit PA270 / 8A4980. It is installed in Fagor Ecocompact boilers FEE-20 and FEE-20/1N. It is replaced when the original boiler PCB fails and needs to be substituted with one that has the same codes.
VAT included
Consult via WhatsAppFagor boilers compatible with reference MU0813400
PCB with reference MU0813400. Two confirmed compatibilities: FEE-20/1N and FE20E-1N.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor FEE-20/1N | Fagor Ecocompact FEE 20 | Contrasted |
| Fagor FE20E-1N | Fagor Ecocompact FEE 20 | 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 MU0813400 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 MU0813400. 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 MU0813400 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: no indicators, no display, and no response to ignition.
Cause: The PCB powers and coordinates the rest of the components; if the input block fails, the entire system loses power.
Check first that the electrical socket and the main switch of the boiler are supplying power, and verify if the fuse on the PCB is blown.
- 02
A fault code appears on the display that does not clear even after performing the usual reset.
Cause: The logic of the PCB manages the operation and translates the readings from the sensors into fault codes.
Verify the exact meaning of the fault code before changing the PCB: sometimes it corresponds to a specific sensor and not to the control electronics.
- 03
The thermostat is calling for heat, but the boiler does not respond, as if it doesn't hear it.
Cause: The PCB is the one that receives the demand from the thermostat and decides to turn on the burner; a fault at that stage renders the order ineffective.
Force the manual ignition if the boiler allows it, to check if the problem is with the PCB or with the thermostat itself and its wiring.
- 04
The boiler starts but stops by itself after a few seconds or minutes, repeatedly.
Cause: The PCB continuously monitors the safety signals and cuts off the gas supply as soon as it detects something out of range, whether real or misread.
Before replacing the PCB, check that the temperature sensors and the pressure switch of the boiler are clean and properly connected.
Fault codes for Fagor that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F5 | Control board fault: the boiler detects an internal fault in the electronic circuit and locks out (red light + F5 on display). | It is the code that the manufacturer directly attributes to an internal fault of the main control board/PCB itself (part MU0813400). Verify: after resetting (switch to O and back), if F5 persistently reappears without external cause (sensors, valve), the control board is faulty and must be replaced; first rule out false contacts/connector and power supply. |
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 Fagor MU0813400 PCB.
- Catalogue reference
- MU0813400
- Brand
- Fagor
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- 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.
- Brand printed on the PCB
- FAGOR (printed logo)
- EPROM code / firmware
- MU 8134 / FEEC06 (646CH) / 179
- Main integrated circuit
- PA270 / 8A4980
- Logical circuit 1
- MC74HCS73AN / CPLU9851
- Logical circuit 2
- 74HC244N / C174ZME HH9905
Frequently asked questions about the PCB MU0813400
Does this PCB Cod. MU 8134 work for my Fagor Ecocompact FEE-20?
What code should my PCB have to be the same as Cod. MU 8134?
Is the PCB from the Ecocompact FEE-20 an original Fagor?
Spare parts related to Fagor Fagor Ecocompact FEE 20
