How to check if the socket in the house is out of power?
Recently, discussions about home circuit failures have been trending on social media, especially the common problem of "dead sockets." This article combines the hot topics and practical tips on the Internet in the past 10 days to provide you with a detailed troubleshooting guide to help you solve the problem quickly.
1. Analysis of common causes

| Ranking | Cause of failure | Probability of occurrence |
|---|---|---|
| 1 | circuit breaker tripped | 45% |
| 2 | The socket is aging or has poor contact | 30% |
| 3 | short circuit | 15% |
| 4 | Leakage protector triggered | 8% |
| 5 | Other reasons (such as meter failure) | 2% |
2. Step-by-step investigation method
Step 1: Check the circuit breaker
• Find the distribution box and check whether the circuit breaker of the corresponding circuit is in the "OFF" state.
• If tripped, try to reset (turn off completely and then on again).
• If it trips again immediately after resetting, there may be a short circuit problem.
Step 2: Test other outlets
• Are the sockets in the same room or adjacent areas functioning properly?
• If multiple sockets have no power, it may be a circuit failure; if only a single socket is abnormal, the socket itself needs to be checked.
Step 3: Check Outlet Status
| Tools | Operation mode | Safety tips |
|---|---|---|
| Test pen | Insert into the socket hole to check the voltage | Keep hands dry |
| Multimeter | Measure the voltage between fire and neutral lines (220V±10%) | Avoid contact with metal parts |
Step 4: Troubleshoot line issues
• Check whether the wiring on the back of the socket is loose (power off).
• Observe the wiring for scorch marks or odor.
• If a trip is caused by a new electrical appliance, the load may be too high.
3. Solutions recently hotly discussed by netizens
According to social platform discussion data, the following methods were mentioned frequently:
| platform | Hot tips | Number of likes |
|---|---|---|
| Zhihu | Using the outlet reset button (outlets with TEST/RESET function) | 23,000 |
| Douyin | Short video demonstrating circuit breaker reset techniques | 156,000 |
| Station B | UP master explains how to replace the socket | 87,000 |
4. Safety precautions
•prohibitedRemove the outlet panel while power is on
• For older houses, it is recommended to contact a professional electrician first
• Immediately cut off the main gate if the line is hot or smoking.
5. When is professional maintenance required?
It is recommended to stop self-diagnosis when the following situations occur:
1. Unable to reset after multiple trips
2. The socket panel is obviously burned
3. Involving circuits in wet areas such as bathrooms
4. Completely ignorant of circuit knowledge
Through the above structured troubleshooting process, 80% of socket power outage problems can be solved by themselves. If the problem is still not resolved, please contact a certified electrician in time to ensure safe use of electricity.
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