Step-by-step fix
Step 1: Make sure the cover is the problem
- Look at the in use cover closely for cracks, a broken hinge, missing latch parts, a warped lid, or a cover that will not stay shut.
- Open and close the lid a few times. If it binds, sags, or leaves visible gaps, replacement is usually the right fix.
- Check the receptacle itself for signs of trouble such as burn marks, a loose outlet, water inside the box, or a face that is cracked or pushed back.
If it works: You have confirmed the cover is damaged or no longer sealing properly, and the outlet itself appears basically intact.
If it doesn’t: If the outlet is loose, damaged, tripping, or shows heat or water damage, address the receptacle or box problem before replacing the cover.
Stop if:- You see melted plastic, scorch marks, corrosion inside the box, or water sitting in the electrical box.
- The receptacle is loose in the box or the box itself is broken away from the wall.
Step 2: Shut off power and verify the outlet is dead
- Turn off the breaker that feeds the outdoor receptacle.
- Test the outlet with a plug-in device if available, then use a non-contact voltage tester around the receptacle slots and cover area.
- Keep the area dry while you work. If the cover or wall is wet from rain, wait until it is dry enough to work safely.
If it works: The outlet tests dead and the work area is dry enough for a safe cover replacement.
If it doesn’t: If you cannot identify the correct breaker, stop and map the circuit before continuing.
Stop if:- The tester still shows power after you believe the breaker is off.
- The area is wet enough that you cannot work without contacting moisture around energized equipment.
Step 3: Remove the old in use cover
- Open the lid and remove the mounting screws holding the cover assembly to the box or device plate.
- Pull the old cover straight off and keep any screws or adapter pieces that came with it until the new cover is installed.
- Remove the old gasket if it stayed stuck to the wall or box face.
- Wipe the mounting surface clean so the new gasket can sit flat.
If it works: The old cover is off, the mounting surface is clean, and you can clearly see how the new cover needs to sit.
If it doesn’t: If the old screws are rusted or stripped, use pliers for extra grip and replace them with the hardware included with the new cover if it fits properly.
Stop if:- The box edge is badly rusted, cracked, or too damaged to hold the new cover securely.
- You find hidden water damage in the wall surface around the box opening.
Step 4: Match and prepare the new cover
- Compare the new cover to the old one for mounting orientation, opening size, and depth.
- Set the cover for the correct layout if it has removable inserts or can mount vertically or horizontally.
- Dry-fit the gasket and cover before tightening anything so you know the lid will swing freely and clear the receptacle face.
- If the old caulk around the top or sides of the box has failed, clean loose material away so you can touch it up after the cover is mounted.
If it works: The new cover matches the outlet setup and is ready to install in the correct orientation.
If it doesn’t: If the lid hits the plug area, the insert does not match the receptacle opening, or the cover is too shallow for normal cord use, exchange it for the correct style.
Stop if:- The new cover does not match the box or receptacle type well enough to mount flat and seal properly.
Step 5: Install the new cover and seat the gasket
- Place the gasket against the box or wall surface as designed by the cover assembly.
- Hold the cover in place and start the screws by hand so the threads catch cleanly.
- Tighten the screws evenly until the cover is snug and the gasket is compressed enough to seal, but do not overtighten and warp the plastic.
- Open and close the lid to make sure the hinge moves smoothly and the latch catches.
- If needed, apply a light bead of exterior-rated sealant along the top and sides of the box trim area where the old seal had failed. Leave the bottom unblocked so moisture is not trapped.
If it works: The new cover sits flat, feels secure, and the lid opens and closes without rubbing or twisting.
If it doesn’t: If the cover rocks or the gasket bulges out, loosen it, realign it, and retighten evenly.
Stop if:- The screws will not tighten because the mounting holes or box threads are stripped or broken.
Step 6: Restore power and test it in real use
- Turn the breaker back on.
- Plug in a small outdoor-rated device or tester and close the in use cover over the cord if the cover is designed for cord use.
- Check that the lid closes as intended, the latch holds, and the cord opening seals as well as the cover design allows.
- After the next rain or sprinkler cycle, inspect the cover again for gaps, loose screws, or signs that water is getting behind it.
If it works: The outlet works, the cover stays closed, and it still protects the receptacle with a cord plugged in.
If it doesn’t: If the cover will not close over a normal plug or still lets water in, replace it with the correct depth and device style for that receptacle.
Stop if:- The outlet stops working, trips repeatedly, or shows signs of moisture intrusion after the new cover is installed.
Replacement Parts
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FAQ
Do I need to replace the outlet too when I replace the in use cover?
Not always. If the receptacle is secure, undamaged, and working normally, you can usually replace just the cover. Replace or repair the outlet first if it is loose, cracked, burned, or showing moisture damage.
What is an in use cover?
It is a weatherproof cover designed to protect an outdoor receptacle even while something is plugged in. It has a deeper lid than a basic flip cover so the cord can exit while the outlet stays covered.
Can I reuse the old gasket?
It is better to use the gasket that comes with the new cover. Old gaskets often flatten, crack, or hold dirt, which makes sealing worse.
Why won't my new cover close over the plug?
The cover may be the wrong depth or the wrong style for that receptacle and plug combination. Some covers fit standard duplex outlets, while others need extra room for a GFCI-style device or a bulky plug.
Should I caulk around the cover?
If the old seal around the box or trim has failed, a light bead along the top and sides can help keep water out. Do not block the bottom edge where trapped moisture needs a way to escape.