Summer household electrical safety guide
investordos.goinnermongolia.com.cn | Updated: Jun 24, 2026

As temperatures soar, cooling appliances such as air conditioners, fans, coolers, and freezers are being put back into service. However, after months of inactivity, these appliances are prone to malfunctions. This seasonal electrical safety guide will help you conduct essential startup checks and follow safe usage practices to ensure a secure home environment.

Air conditioners: Clean filters and inspect wiring

1. Clean the filters and wipe down the heat exchangers to remove dust.

2. Inspect the power cords of both indoor and outdoor units for any signs of damage, such as cracked insulation or aging. Ensure that plugs and sockets are securely connected.

3. Check the outdoor unit's mounting brackets for rust or looseness to prevent potential falls.

Electric fans: Clean blades and conduct a test run

1. Thoroughly clean the fan blades and protective grills to remove dust.

2. Examine the power cord for wear, aging, or damage; and confirm that the switches operate smoothly and make good contact.

3. Conduct a test run to see if the fan operates smoothly and check for unusual noises or jerky movements. If any issues are found, disconnect the power immediately and consult a professional for repairs.

Freezers: Allow ventilation and use dedicated outlets

1. Ensure adequate ventilation space around the unit, and do not block the cooling vents.

2. Use a dedicated power outlet for the freezer and avoid sharing a power strip with other high-power appliances.

3. Do not place warm food directly into the freezer to avoid overloading the cooling system.


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