Main PCB Baxi Roca Eco 3 Compact 240 FI Ref. 5680410
RefurbishedBaxi RocaPCBs (control boards)

Main PCB Baxi Roca Eco 3 Compact 240 FI Ref. 5680410

95 €VAT included

PCB (control board): refurbished spare part that controls the ignition, modulation, and safety features of the boiler. Useful if the boiler does not ignite, locks out, or the display is unresponsive. Compatible with 240 Fi, 240 i, 1.240 Fi (ref. 5680410). Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
Consult via WhatsApp
Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
5680410
Brand
Baxi Roca
Type of part
PCBs (control boards)
Available units
0 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 5680410) equips these models. Verified compatibility; check the reference before purchasing.

Eco 3 Compact

  • 240 Fi
  • 240 i
  • 1.240 Fi
  • 1.240 i
  • 1.140 Fi
  • 1.140 i

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
E35Parasite 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.
E25Safety 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.
How do I know if this PCB is for my boiler?
Check the reference 5680410 printed and ensure your model is on the list of compatibles; also compare the connections with the original part. It is a Honeywell (Resideo) part - SM11454U.
What is it used for?
The PCB controls the ignition, modulation, sensor readings, and safety features of the boiler.
Is the boiler not igniting, locking out, or is the control board unresponsive?
After ruling out mains voltage, fuse, and connectors, a damaged PCB causes lockouts, blackouts, or erratic display. Repair the external cause before installing the new one.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
After installation, a technician must adjust the service parameters (type of gas, power settings) and check combustion and safety features.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.
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