Honeywell Main PCB Baxi Roca Eco 3 Compact 240 FI Ref. 5680410
When you open the hot water tap or turn on the heating, the Honeywell Baxi Roca Eco 3 Compact 240 FI Main PCB controls the ignition and modulation of the burner, as well as the pump and safety features of the boiler. If this part fails, you may notice that the boiler does not start, locks out, or exhibits erratic behavior, and you might encounter faults such as E35 or E25. This PCB is compatible with several models in the Eco 3 Compact range, including the 240 Fi, 240 i, and others. A technician must confirm through diagnosis whether it is necessary to replace it when these faults occur or if the boiler stops functioning properly.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 5680410
- Warranty
- 1 year
Baxi Roca boilers compatible with reference 5680410
PCB with reference 5680410. Six confirmed compatibilities: 240 Fi and 240 i.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca 240 Fi | Eco 3 Compact | Contrasted |
| Baxi Roca 240 i | Eco 3 Compact | Contrasted |
| Baxi Roca 1.240 Fi | Eco 3 Compact | Contrasted |
| Baxi Roca 1.240 i | Eco 3 Compact | Contrasted |
| Baxi Roca 1.140 Fi | Eco 3 Compact | Contrasted |
| Baxi Roca 1.140 i | Eco 3 Compact | 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 ref. 5680410 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 5680410. If it is not visible, do not identify the part by 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 5680410
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 does not ignite any pilot light or display, as if it is not receiving power.
Cause: The main PCB distributes power to the other components; if it fails, the entire boiler becomes inoperable.
First, check the fuse on the PCB and ensure that 230V is reaching its input before considering it faulty.
- 02
The burner starts up for a moment and then shuts off, repeatedly attempting to ignite.
Cause: The PCB manages the ignition sequence and the flame signal; if its control electronics fail, it aborts the cycle for safety reasons.
Check that the ionization electrode is clean and properly connected before attributing it to the PCB.
- 03
Different faults or error codes appear without a clear pattern, and sometimes it resets by itself.
Cause: An intermittent fault in the PCB causes erratic readings from sensors and relays.
Note the exact code displayed by the boiler and repeat the fault to rule out that it is a specific sensor and not the PCB.
- 04
The thermostat or the remote control cannot get the boiler to respond.
Cause: The PCB is the one that receives and processes those commands; if the microprocessor or its outputs fail, there is no response.
Do not force, hit, or bridge the component. Request a technical check according to the equipment manual before deciding on its replacement.
Fault codes Baxi Roca that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| E35 | Parasite flame (flame error). | The main PCB can generate a false flame signal due to a fault in the ionisation/ground circuit. Check earth continuity between the PCB (connector X4) and terminal block, the condition/position of the electrode, and if the issue persists with correct wiring/electrode, test/replace the PCB. |
| E25 | Safety activation due to lack of water circulation (likely blocked pump). | In addition to hydraulic causes, a defective PCB may not power the pump or may incorrectly read the flow NTC, causing a lockout. Check the power supply to the pump from the control board, read the NTC at the PCB terminals, and if the hydraulic part is ruled out, replace/test 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 Baxi Roca 5680410 PCB.
- Catalogue reference
- 5680410
- Uniclima internal SKU
- PLBA138
- Brand
- Baxi Roca
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Manufacturer of the PCB
- Honeywell (now Resideo)
- Type of PCB code
- TYPE SMC0M02
- Sticker code on the PCB
- SwR196C 054943, Date 0306, Cd. 99.5163.1
- Compatibility of reference 5680410 (confirmed by external sources)
- Baxi Roca Eco 3 Compact 240 FI / Westen Pulsar
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Baxi Roca 1.240 i manual (PDF) Document © Baxi Roca, provided as a technical reference.
Frequently asked questions about the PCB 5680410
Who manufactures the main PCB of the Baxi Roca Eco 3 Compact 240 FI?
Is this PCB compatible with the Baxi Roca Eco 3 240 i?
Are there other equivalent references to the 5680410 of this PCB?
What type code does the Honeywell PCB of the Eco 3 Compact 240 FI have?
What fault codes are documented for this PCB?
How many models are compatible with this PCB?
