Wolf CGB K 40-35 Control Board PCB Ref. 279925099
RefurbishedWolfPCBs (control boards)

Wolf CGB K 40-35 Control Board PCB Ref. 279925099

130 €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 CGB-11, CGB-20, CGB-24 (ref. 279925099). 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
279925099
Brand
Wolf
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. 279925099) equips these models. Verified compatibility; check the reference before purchasing.

CGB

  • CGB-11
  • CGB-20
  • CGB-24
  • CGB-35
  • CGB-50
  • CGB-75
  • CGB-100

CGB-K

  • CGB-K-20
  • CGB-K-24
  • CGB-K-40/35

MGK

  • MGK-130
  • MGK-170
  • MGK-210
  • MGK-250
  • MGK-300

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)
30Boiler PCB fault — EEPROM record "Condensing boiler" invalid.The CRC/EEPROM record residing in the control board is corrupted; if the error persists after turning the power off/on, the control PCB is defective. Verify with a network reset and basic check of power supply and connectors; if it continues, replace the board.
31Burner electronics error — Incorrect "Burner" EEPROM record.The EEPROM record of the burner on the control board is invalid; if the network reset does not clear it, the memory of the PCB is damaged. Check with power off/on, and if it persists, replace the control board.
33Error electronic values — EEprom record "General reset" invalid.The default values stored in the EEPROM of the control board are corrupted, causing the boiler to lock with this code. The indicated check is to replace the control board (after ruling out a network fault).
How do I know if this PCB is for my boiler?
Verify the reference 279925099 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.

Spare Parts Related Boiler CGB K 40-35

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