When there is a lot of rain the outside GFCI trips even though it covered?

1. Water Leakage: Check for any cracks, gaps, or breaches in the GFCI cover or housing that may allow water to seep inside. Ensure the cover is intact and tightly closed.

2. Defective GFCI: The GFCI itself might be faulty or damaged, causing it to trip even in dry conditions. Check if the GFCI has tripped due to a power surge or an internal fault.

3. Faulty Wiring: Improper connections, exposed wires, or faulty wiring near the GFCI could lead to tripping when moisture is present.

4. Ground Fault: A ground fault occurs when current leaks from a live wire to the grounding system. This can be caused by damaged appliances or faulty electrical components connected to the GFCI circuit.

Recommendations:

1. Thoroughly Inspect: Do a thorough inspection of the GFCI unit and its surroundings. Check for any signs of damage, water leakage, or faulty connections.

2. Test GFCI: Regularly test the GFCI by pressing the "Test" button and ensuring it trips and resets properly.

3. Professional Assessment: If the problem persists, consider consulting a qualified electrician for further evaluation of the GFCI unit and electrical system.

4. Dry Out: If water seepage is the issue, ensure the area is completely dry before resetting the GFCI. Consider applying additional weatherproofing or sealant around the GFCI housing to prevent future moisture ingress.

5. Replace: If the GFCI unit is damaged beyond repair, have it replaced by a professional electrician.

6. Maintain Appliances: Ensure that any outdoor appliances connected to the GFCI circuit are in good condition, properly grounded, and not damaged by moisture or age.

7. Circuit Breaker Inspection: Check the circuit breaker connected to the GFCI to ensure it is properly functioning and not overloaded.