When it comes to Christmas lighting and decorating, GFCIs (Ground Fault Circuit Interrupters) often cause more frustration than any other part of the setup, especially in warmer climates where rain is more frequent than snow. While GFCIs are essential for safety, moisture can cause them to trip unnecessarily, disrupting your display. For small installations such as residential homes or small office displays, we recommend using A Plug Pro Gaskets and A Plug Pro Plug Covers to help seal moisture out of plug connections and reduce nuisance tripping. These items would be used together to help create a water tight seal between your extension cords and Christmas Lights. 

If that is not a feasible option, there are other ways to reduce moisture-related GFCI issues and keep your lighting setup running smoothly:

1. Use bubble covers on all outdoor outlets
Install weatherproof (in-use) covers to protect outlets from rain and moisture—even while plugged in.

2. Keep plug connections off the ground
Avoid placing plugs or extension connections directly on the ground where water can collect. Use hooks, stakes, or elevate the connections to keep them dry.

3. Use a water displacement spray
Apply dielectric grease or a high-quality water displacement spray in female connectors to repel moisture.

4. Improve air circulation inside displays
After heavy rain, place a large fan at the base of tree frames blowing upward to help dry out moisture. Be sure to remove or protect the fan if it’s not outdoor rated.

5. Stay within electrical load limits
Do not exceed 80% of your circuit’s amperage rating. For example, on a 20-amp circuit, keep your load under 16 amps, ideally closer to 10 amps for added stability.

6. Use GFCI breakers instead of outlets
GFCI breakers are less prone to nuisance tripping and are easier to reset than standard GFCI outlets installed outdoors.

7. Install outlets above ground level
Make sure outlets are positioned where they can drain and dry quickly. Outlets in low or damp locations retain moisture and may continue tripping even after a light rain.

8. Turn off irrigation systems
Disable any nearby sprinkler or irrigation systems while your lights are running. Even light mist can cause problems with moisture buildup in plugs and sockets.

Want to learn more about managing GFCIs and moisture?
Check out our full blog post here:
👉 GFCIs and Christmas Lights - How to Overcome GFI Related Problems