S
Steven MitchellAug 4, 2025
What to do if my DeDietrich Diematic iSystem Control Panel shows BL.HEATING SPEED error?
- MMartha RamirezAug 4, 2025
If the DeDietrich Control Panel displays the error 'BL.HEATING SPEED', possible causes include insufficient water flow, sensor error or incorrect fitting of the boiler sensor. You should check the circulation, water pressure, cleanliness of the heat exchanger, and ensure the sensors are operating correctly and the boiler sensor is correctly fitted.