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How to Check the quality of The Furnace Control Board

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  Although it is more recommended to have professionals conduct inspections in actual maintenance, through some basic and safe inspection steps, it is also possible to initially determine whether there is a problem with the control board for the furnace.   Basic Troubleshooting Steps   Before starting the inspection, prepare the tools you need first.   •  Control board manual   •  Screwdriver   •  Voltage meter (multimeter)   Step 1: Access the Control Board   Before performing any operation, be sure to cut off the power supply to the furnace first to avoid electric shock or damage to the equipment. After confirming the power failure, remove the inspection panel of the furnace.   Step 2: Visual and Odor Inspection   Without power on, first conduct a visual inspection of the furnace board, with a focus on:   •  Burn marks   •  Damaged components   •  Loose or corroded connections   Step 3:...

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China’s Xi Jinping calls for hi-tech ‘smart system’ to boost border defence

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  The instructions were made during a group study session on Tuesday attended by the Communist Party's 24-member   Politburo , the party's top policymaking body. Such sessions usually give a glimpse of the leadership's priorities. DLE Store  Xi highlighted the need to "strengthen technological empowerment" in border defence, "enhance the development of new methods and conditions for border, maritime, and air defence, and build a comprehensive and smart management and control system". Do you have questions about the biggest topics and trends from around the world? Get the answers with  SCMP Knowledge , our new platform of curated content with explainers, FAQs, analyses and infographics brought to you by our award-winning team. This aligns with Xi's repeated calls to improve the use of advanced technology in the armed forces to meet  modernisation  goals by 2027 and achieve the goal of building a  world-class military  by 2050. Related video : ...