What does fault code 01 mean on Hermann?

Name: Ignition Transformer Hermann Micra 2 Ref. 52004120
Brand: Hermann
SKU: TECHM2
Price: 25 EUR
Availability: InStock

Ignition fault / incorrect combustion. Faulty ignition transformer (accenditore): does not supply high voltage to the electrodes, no spark, and the electronics do not detect a flame, resulting in a lockout with 01. Check for spark presence at startup, power supply to the accenditore, and continuity of the HT cable/electrode.

RefurbishedHermann Transformers

Ignition Transformer Hermann Micra 2 Ref. 52004120

25 €VAT includedIn stock · 5 units

Ignition transformer: refurbished spare part that generates high voltage for the electrode spark. Useful if there is no spark or ignition faults are recurring. Reference 52004120. Includes a one-year warranty and delivery within 2–4 working days in the EU.

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Delivery in 2–4 working days

1-year warranty

14-day return

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Key Data

Reference: 52004120
Brand: Hermann
Type of part: Transformers
Available units: 5 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

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.

Code	What does it mean?	Cause and diagnosis (this part)
01	Ignition fault / incorrect combustion.	Defective ignition transformer (accenditore): it does not supply high voltage to the electrodes, there is no spark, and the electronics do not detect a flame, resulting in a lockout with 01. Check for the presence of a spark at startup, power supply to the accenditore, and continuity of the HT cable/electrode.

Ignition Transformer Hermann Micra 2 Ref. 52004120

Key Data

Spare Parts Related to Boiler Micra 2