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T
terri54Aug 7, 2025
How to fix H and ! symbols displayed on Bosch WBN 6000-28 HR N Boiler?
- JJohn CarneyAug 7, 2025
If the H and ! symbols are displayed, press and hold the key until the symbols disappear.
How to fix H and ! symbols displayed on Bosch WBN 6000-28 HR N Boiler?
If the H and ! symbols are displayed, press and hold the key until the symbols disappear.
What to do if only H appears on Bosch Boiler display?
If only the H symbol appears, switch the device off and on again using the K key.
General| Category | Boiler |
|---|---|
| Model | WBN 6000-28 HR N |
| Fuel Type | Natural Gas |
| Max. Heat Output | 28 kW |
| Energy Efficiency Class | A |
| Control Type | Electronic |
| Type | Condensing |
| Heating Output | 28 kW |
Describes warning signal words (DANGER, WARNING, CAUTION, NOTICE) and their meanings.
Provides crucial safety advice for the target group and general operational precautions.
Covers intended use, and critical safety warnings for gas leaks, flue gas, and carbon monoxide.
Outlines user responsibilities and contractor recommendations for system safety and maintenance.
Warns against unauthorized modifications and highlights potential risks of injury or damage.
Describes the procedure to open shut-off valves for system preparation.
Explains how to read and maintain the heating system pressure, typically between 1-2 bar.
Identifies and explains the functions of the appliance's control panel buttons and display elements.
Explains device and system frost protection measures and precautions.
Explains how to interpret fault codes displayed on the screen and the steps to take.
