Low water pressure below 0.8bar will trigger the low-pressure protection and cause automatic shutdown. This is a normal safety mechanism. Master Xiaoyijiang shows you how to refill the system correctly: \n\nRefilling Steps: \n1. Locate the fill valve at the bottom of the boiler, typically a black or blue knob. \n2. Slowly turn the valve counter-clockwise to open it. \n3. Monitor the pressure gauge on the display panel simultaneously. \n4. Close the fill valve immediately once the pressure reaches 1.2-1.5 bar. \n5. Tighten the valve clockwise and ensure there are no leaks. \n\nImportant Notes: \n- Refill slowly to prevent sudden pressure spikes. \n- Do not exceed 2.0bar; excessive pressure will trigger the safety valve to release water. \n- If you need to refill more than once a week, there may be a leak in the system. \n- If error codes persist after refilling, air bleeding or professional inspection may be required. \n\nXiaoyijiang Reminder: Perform a full maintenance check before each heating season, including cleaning the heat exchanger, inspecting the expansion tank, and testing flue gas emissions. Schedule your service by calling 400-1060-908 to ensure your boiler operates efficiently and safely through the winter.
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