Cointra Excellent Low NOx PCB Ref. 39834970
RefurbishedCointraPCBs (control boards)

Cointra Excellent Low NOx PCB Ref. 39834970

120 €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 Excellent Micro Low NOx 24E, Excellent Micro Low NOx 32E, Excellent Low NOx 24E (ref. 39834970). 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
39834970
Brand
Cointra
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. 39834970) equips these models. Verified compatibility; check the reference before purchasing.

Excellent Micro Low NOx

  • Excellent Micro Low NOx 24E
  • Excellent Micro Low NOx 32E

Excellent Low NOx

  • Excellent Low NOx 24E
  • Excellent Low NOx 32E

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)
A02Flame signal present with the burner off (the boiler detects a flame when there shouldn't be one).One of the two documented causes is the PCB anomaly: the electronics misinterpret or incorrectly generate the ionisation signal. First, check the wiring of the ionisation electrode (rule out the electrode), and if it is correct, check/replace the PCB. Technical sources literally indicate 'PCB anomaly, check the PCB'.
How do I know if this PCB is for my boiler?
Verify the reference 39834970 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Ferroli piece (DBM25).
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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