Main PCB Saunier Duval Isofast Condens F35 A 1 Ref. 0020212697
RefurbishedSaunier DuvalPCBs (control boards)

Main PCB Saunier Duval Isofast Condens F35 A 1 Ref. 0020212697

125 €VAT includedIn stock · 1 unit

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 up, or the display is unresponsive. Compatible with Isofast Condens F35 A/1 (ref. 0020212697). 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
0020212697
Brand
Saunier Duval
Type of part
PCBs (control boards)
Available units
1 unit in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020212697) equips these models. Verified compatibility; check the reference before purchasing.

Isofast Condens

  • Isofast Condens F35 A/1

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)
F.63EEPROM memory fault of the boiler's electronic control.The EEPROM resides in the main PCB itself (this piece); a read/write fault in its memory originates from the electronics. It is checked by ruling out interference and, if it persists after restarting, by replacing the PCB.
F.64Fault in the electronics related to the NTC sensor input.The processing of the NTC signal is done by the PCB; with the short circuit in the NTC flow/return sensor ruled out (measure the sensor's resistance), the remaining documented cause is a fault in the electronics/PCB itself.
F.65Electronic temperature fault (PCB overheating).It is detected and caused by the PCB itself; first verify that there is no external source of abnormal heat and, if ruled out, the code indicates a fault in the electronics/PCB.
F.67Electronics/flame fault: flame signal not plausible for the control.The flame signal detection and validation circuit is on the PCB; when the received signal is not plausible and the ionisation electrode is ruled out, the documented cause is an electronics/PCB fault.
How do I know if this PCB is for my boiler?
Verify the reference 0020212697 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
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.

Related Spare Parts Boiler Isofast Condens F35 A 1

Scroll to the top