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Emergency Troubleshooting Tips for ZCEBOX Plastic Distribution Box Junction Boxes

Oct. 29, 2025
Sudden faults (e.g., no power supply, overheating) of junction boxes require quick problem location. ZCEBOX shares 2 emergency troubleshooting tips to efficiently solve common issues:
  1. 1.Quick Troubleshooting for No Power Supply
    First check if the main power switch is tripped, then test each terminal with an electric test pen—if no terminals have power, it may be a broken incoming wire; if only some terminals have no power, focus on checking the wire connection of that circuit (whether loose or copper core not pressed firmly), and re-tighten the terminal screws.
  2. 2.Emergency Handling for Overheating/Abnormal Noise
    If the box is overheated or terminals make "sizzling" sounds, cut off power immediately! Touch terminals to locate the heating point: if a single terminal is overheated, it is likely overloaded or poorly connected—reduce the number of wires and re-tighten screws; if the whole box is overheated, check if it is close to high-temperature sources or poorly ventilated, move the box and reserve heat dissipation space.
Emergency troubleshooting can quickly stop losses and avoid fault expansion.

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