Outdoor Light Fixture Won't Turn On After a Storm

Your porch or garage light stopped working after rain or a storm. It's usually a tripped GFCI, a corroded socket, or water in the fixture — not a wiring disaster.

Category:Outdoor

Difficulty:Easy

Time:15-20 min

Success:50%

Updated:May 23, 2026

quick_referenceQuick Answer

For Outdoor Light Fixture Won't Turn On After a Storm, start with "Find and reset every GFCI on the property before touching the fixture": Outdoor lights are almost always on a GFCI-protected circuit. The GFCI outlet that tripped might not be anywhere near the light. Check every GFCI in the house: garage, all bathrooms, kitchen, basement, and any exterior outlet with TEST and RESET buttons. Press each RESET firmly until it clicks. If one won't reset, unplug everything on that circuit and try again. Only after confirming all GFCIs are live should you move on to the fixture itself. Stop DIY if the fixture wiring is cloth-insulated, brittle, or crumbling — this is old knob-and-tube or early romex that needs professional attention. This is listed as a easy recovery and usually takes about 15-20 min.

verifiedGuide Snapshot

Repair areaOutdoor

Estimated time15-20 min

DifficultyEasy

Stop conditions4

Last updated May 23, 2026. Review the stop conditions before continuing.

account_treeRecovery State

DeviceLight Switch

Current stateNot Working

Specific stateDead After Storm

Failed stepLighting Operation

Likely failure typeElectrical Fault

DIY boundaryDIY recovery first

paymentsCost decision

help1. Understand the Problem

Outdoor fixtures take a beating from rain, temperature swings, and UV exposure. The most common failure after wet weather is a tripped GFCI outlet on the same circuit — outdoor lights are often daisy-chained through a GFCI in the garage or a bathroom. If the GFCI is fine, water intrusion corrodes the bulb socket contacts or fills the fixture body until it shorts. The third possibility is a bad photocell or motion sensor that got confused by the storm.

build_circle2. Try This First

Best First Step

Find and reset every GFCI on the property before touching the fixture

Outdoor lights are almost always on a GFCI-protected circuit. The GFCI outlet that tripped might not be anywhere near the light. Check every GFCI in the house: garage, all bathrooms, kitchen, basement, and any exterior outlet with TEST and RESET buttons. Press each RESET firmly until it clicks. If one won't reset, unplug everything on that circuit and try again. Only after confirming all GFCIs are live should you move on to the fixture itself.

visibility3. Visual Guidance

See what's happening and how to try the first recovery step.

Turn off power, open the fixture, and check for waterOnce you're sure the GFCI isn't the problem, kill the circuit at the breaker. Remove the fixture cover — usually held by two screws or a thumbscrew. Look inside for standing water, condensation, or rust. If you find water, the fixture's gasket has failed. Dry everything thoroughly with a rag and a hair dryer on low before reassembling.

Clean or replace the bulb socket contactsWith the bulb removed, check the socket. The brass center contact tab and the threaded aluminum shell are probably corroded green or white. Scrub the contacts with a small wire brush or folded sandpaper. If the center tab is flattened or broken off, bend a new arc into it with needle-nose pliers or replace the socket. A corroded socket creates resistance that trips the GFCI repeatedly.

Bypass the photocell or motion sensor to testMany outdoor fixtures have a built-in dusk-to-dawn photocell or motion sensor that can fail independently of the light. With the power off, temporarily wire the fixture hot directly to the socket (bypassing the sensor). Restore power briefly. If the light works, replace the sensor module — they're $10-20 and wire in with two wire nuts.

autorenew4. If That Doesn't Work

Try the next recovery options.

upgrade

Replace the entire fixture with a sealed LED unitIf the fixture body is rusted through or the lens is cracked and letting water in, stop patching it. Modern integrated LED outdoor fixtures are sealed against weather and cost $25-50. They'll outlast any bulb-and-socket fixture in wet locations.

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Test the switch with a multimeterIf there's no water damage and the GFCI is fine, the wall switch itself may have failed — especially if it's an old one exposed to outdoor humidity. Test the switch for continuity with the power off, or temporarily bridge the switch terminals to see if the light comes on.

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Frequently Asked Questions

Why does my outdoor light trip the GFCI every time it rains?expand_more

Water is getting inside the fixture and creating a path to ground, which is exactly what a GFCI is designed to detect. You need to seal the fixture — replace the gasket, caulk around the mounting plate, and make sure the bulb cover is fully seated. Or replace the fixture with a properly sealed wet-rated unit.

Can I replace an outdoor light fixture myself?expand_more

Yes, if you're comfortable with basic wiring. The three wires (hot, neutral, ground) connect the same way as any indoor fixture. The critical part is sealing the mounting plate against the wall with silicone caulk and using a fixture rated for wet or damp locations.

The light works during the day but not at night. What's happening?expand_more

Your photocell is stuck in daylight mode. Clean the sensor eye with a dry cloth — dirt or spider webs can trick it. If cleaning doesn't help, the photocell is failed and needs replacement. Most are separate replaceable modules that unscrew from the fixture body.

Can I use a regular LED bulb in my outdoor fixture?expand_more

Only if the fixture is fully enclosed and the bulb is rated for enclosed fixtures. Standard LED bulbs overheat in sealed fixtures and fail early. Look for bulbs labeled 'suitable for enclosed fixtures' or buy outdoor-rated LED fixtures that have the LEDs built in.