# DB Box Keeps Tripping? 7 Causes & How to Fix\n\nA DB (Distribution Board) box is your home's electrical hub with Main Switch and MCBs (Miniature Circuit Breakers). When it trips, it's preventing electrical fires—a safety feature!\n\n## Why Your DB Box Is Tripping\n\n### 1. Overloading\nToo many high-power appliances (aircon + instant heater + water pump).\nFix: Upgrade circuit to 20A. Cost: 00–00\n\n### 2. Short Circuit\nFaulty wiring or worn insulation.\nFix: Professional inspection. Cost: 50–50\n\n### 3. Faulty Appliance\nDefective heater, aircon, or pump with internal fault.\nFix: Test each appliance separately. Replace faulty one.\n\n### 4. Moisture/Damp\nWater in DB box causes corrosion.\nFix: Move box away from water source. Cost: 00–00\n\n### 5. Old/Degraded MCB\nBreakers degrade over 10–15 years, become overly sensitive.\nFix: Replace MCB. Cost: 0–0 per unit + 00 labor\n\n### 6. Installation Error\nWrong MCB size (10A when should be 15A or 20A).\nFix: Upsize MCB to correct amperage. Cost: 00–00\n\n### 7. Voltage Fluctuation\nUnstable grid power from utility company.\nFix: Install voltage stabilizer. Cost: 00–00\n\n## Quick Diagnostic Test\n1. Turn off the appliance that trips the breaker\n2. Switch the MCB back on\n3. Turn on ONLY that appliance\n4. If trips → appliance problem. If not → circuit/breaker problem.\n\n## DB Box Replacement Cost\nIf entire box is old:\n- Materials: 00–00\n- Labor: 00–00\n- Total: 00–,100\n\n## Why Professional Help?\n- EMA-licensed electricians follow Singapore code\n- Proper circuit sizing prevents future issues\n- Warranty on parts and labor\n\n## Important: Don't Ignore Persistent Trips!\n⚠️ Persistent tripping = electrical fire risk. Don't keep flipping it back on—find the root cause!\n\n## Emergency Service\nWhatsApp +6581518857 — Licensed EMA electrician, 30-minute response.\n\nServing all Singapore: HDB, condo, landed properties. Same-day service available.