PCB Saunier Duval Isofast Condens F 35 E Ref. S1040000
RefurbishedSaunier DuvalPCBs (control boards)

PCB Saunier Duval Isofast Condens F 35 E Ref. S1040000

105 €VAT includedIn stock · 2 units

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 F 30 E, F 35 E, F 35 E (ref. S1040000). 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
S1040000
Brand
Saunier Duval
Type of part
PCBs (control boards)
Available units
2 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. S1040000) equips these models. Verified compatibility; check the reference before purchasing.

Isofast Condens

  • F 30 E
  • F 35 E

Isomax Condens

  • F 35 E

Isotwin Condens

  • F 30 E

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.70Invalid product code (DSN).Joint replacement of screen and PCB (S1040000) without reprogramming the DSN or incorrect power/gas coding resistor on the PCB; check in service menu (e.g., d.93), review/code resistor and recode DSN.
F.63EEPROM fault.Memory/electronic fault in the PCB (S1040000); confirm after reset and checking voltages/grounds; if it persists, reprogram or replace the PCB.
F.64Fault in the electronics / NTC.The analog front-end/ADC of the PCB detects a short circuit/impossible readings from the NTC or is faulty; isolate by disconnecting/measuring the NTC and wiring, and if they are correct, replace the PCB.
F.65Fault: electronics temperature.Overheating of the PCB; check for external heat sources/ventilation and actual temperature on electronics; if it reappears without an external cause, replace the PCB.
F.67Fault: electronics/flame.The flame control ASIC on the PCB delivers an implausible signal; measure ionisation current and ground, and if they are correct, the electronics (S1040000) are faulty.
F.42Resistance fault coded (probably in combination with F.70).Gas type coding resistor on the PCB short-circuited/open or incorrectly coded; check value and connections (and those of the power harness) and recode/replace the board if the integrated resistor fails.
F.27Safety shutdown: incorrect flame detection.Moisture/damage in the flame control electronics of the PCB causes out-of-phase flame detection; inspect/retighten seals, dry and check the board and ionization signal before replacing it.
How do I confirm that this PCB is the correct one for my boiler?
Check the silkscreened reference S1040000 on your PCB and ensure that your boiler model is on the list of compatible ones; also compare the number and position of the connectors.
Which models is this PCB suitable for?
It is a PCB shared by several models of the same range (see Compatibility tab). If your model does not appear, send us a photo of the silkscreen and we will confirm it.
When installing it, do you need to parameterize or configure anything?
If you replace it with the same reference, it is usually sufficient to replicate the jumpers/configuration of the original; after installation, a technician should verify service parameters (type of gas, power settings) and check combustion and safety features.
Is it the same as the display or control panel?
No. This is the main PCB (controls ignition, modulation, sensor readings, and safety features). The display/user interface is a separate piece; if your fault is with the panel, it is not this PCB.
Why does a PCB fault occur and how can I prevent the new one from failing?
It is usually due to external causes: voltage spikes, shorts in the pump, fan, or valves, humidity, or poor grounding. Before installing the new one, check peripherals, wiring, and connectors, fix water leaks, and verify polarity and grounding.
What does refurbished mean and what coverage does it have?
Part removed from an out-of-service boiler, inspected and bench-tested; not factory new. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Related Spare Parts Boiler Isofast Condens F 35 E

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