What does fault code 13 mean in Hermann?

Main printed circuit fault (PCB). The main board is faulty or has defective internal/external connections; check the fuse and voltages of the PCB (230/5 V supplies) and connectors. If the issue persists with correct wiring and peripherals, replace the board.

What does fault code 11 mean in Hermann?

No reception by the main PCB (MMI line). Communication fault towards the PCB (receiver/MMI input of the PCB) or the cable between the interface and PCB; check continuity of the MMI lead and 5 V on the interface. If the fault persists with a good cable/panel, the PCB is the cause.

RefurbishedHermann PCBs (control boards)

Hermann Supermaster S SE PCB Ref. 0020076179

Name: Hermann Supermaster S SE PCB Ref. 0020076179
Brand: Hermann
SKU: PLACHSUP
Price: 60 EUR
Availability: InStock

60 €VAT includedIn stock · 5 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. Reference 0020076179. 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

Technical support

Key Data

Reference: 0020076179
Brand: Hermann
Type of part: PCBs (control boards)
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)
13	Main PCB fault.	The main PCB is faulty or has defective internal/external connections; check the fuse and voltages of the PCB (230/5 V supplies) and connectors. If the issue persists with correct wiring and peripherals, replace the PCB.
11	No reception from the main PCB (MMI line).	Communication fault towards the PCB (receiver/MMI input of the PCB) or the cable between interface and PCB; check continuity of the MMI lead and 5 V on the interface. If the fault persists with a good cable/panel, the PCB is the cause.

Hermann Supermaster S SE PCB Ref. 0020076179

Key Data

Spare Parts Related Boiler Supermaster S SE