A20
Brötje
Gas pressure supervision fault
Display shows A20, gas pressure switch fault (if fitted)
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Insufficient gas supply pressure, Faulty gas pressure switch, Blocked pressure tubing, Incorrect switch setting
How to Fix / Troubleshooting
Safety: Work on gas components only if qualified. Shut off gas and power before opening gas train.
- 1. Check gas supply: Ensure the main gas cock is open and that other gas appliances operate normally.
- 2. Inspect pressure switch tubing: Check the small tubes from the gas valve to the pressure switch for blockage or damage.
- 3. Test switch: A technician can measure continuity across the switch at known pressures. Replace the Brötje gas pressure switch if it does not operate correctly.
- 4. Adjust or replace: Do not alter factory settings unless following Brötje commissioning instructions with proper instruments.
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Repair Difficulty
Professional Required
5/5
Required Part
Gas Pressure Switch
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