A tripping circuit breaker is doing its job: protecting your home from electrical overload or short circuits. But when a breaker trips frequently, won't reset, or shows signs of damage, it's time to take action.
Here's how to know whether you need a simple breaker replacement or something more significant.
How Circuit Breakers Work
Circuit breakers are safety devices that automatically shut off power when they detect:
- Overload: Too much current flowing through the circuit (like plugging too many things in)
- Short circuit: A direct connection between hot and neutral wires (dangerous!)
- Ground fault: Current flowing through an unintended path to ground
When triggered, the breaker "trips" to the middle position, cutting power to prevent wire damage or fire.
Signs You Need Breaker Replacement
1. Breaker Won't Stay Reset
If a breaker trips immediately when you reset it, either:
- There's an active fault on the circuit (unplug everything and try again)
- The breaker itself has failed
If it won't reset even with everything unplugged, the breaker needs replacement.
2. Breaker Feels Hot
Breakers get slightly warm during normal operation. But if a breaker is hot to touch, that's dangerous: it indicates internal arcing or loose connections.
Turn off that breaker and call an electrician.
3. Visible Damage
Check your panel for:
- Scorch marks or discoloration
- Melted plastic
- Burnt smell
- Corroded or rusted breakers
Any of these warrant immediate professional inspection.
4. Breaker Trips Under Normal Load
If a 20-amp breaker trips when you're only using a lamp and phone charger, the breaker's internal mechanism may be worn out. Breakers can weaken over time, tripping at lower currents than their rating.
5. Frequent Nuisance Trips
Occasional trips are normal. But if the same breaker trips weekly or daily without obvious cause, it either:
- Needs replacement (worn out)
- Indicates the circuit is overloaded (need to redistribute loads)
Electrical Panel Upgrades for St. Charles & St. Louis County homes
Free on-site estimate, flat price before any work starts.
When Single Breaker Replacement Works
Replacing an individual breaker makes sense when:
- Only one breaker is problematic
- Your panel is modern (less than 25 years old)
- Panel has available capacity
- Breakers are still manufactured (not obsolete)
Single breaker replacement is straightforward and affordable. We keep common breakers in stock.
When You Need More Than a Breaker
Sometimes a single breaker issue indicates larger problems:
Obsolete Panel Brands
Certain panels from the 1970s-90s have known safety issues:
- Federal Pacific (FPE) Stab-Lok: Breakers fail to trip during overloads. Major fire hazard.
- Zinsco/Sylvania: Breakers melt to bus bars, failing to trip when needed.
- Challenger: Some models have poor breaker connections.
- Pushmatic: Obsolete breakers increasingly hard to find.
If you have any of these panels, we strongly recommend full replacement rather than individual breaker repairs.
Running Out of Spaces
If your panel is full and you need more circuits, options include:
- Tandem breakers: Two circuits in one slot (if panel allows)
- Subpanel: Additional panel fed from main panel
- Panel upgrade: New, larger panel
Aluminum Wiring
Homes built 1965-1973 may have aluminum branch circuit wiring. If your breakers aren't rated for aluminum, replacement breakers must also handle aluminum, or the wiring needs remediation.
The Replacement Process
For straightforward breaker replacement:
- Turn off main breaker (or we work live with proper safety equipment)
- Remove old breaker from bus bar
- Install new breaker of same type and amperage
- Test circuit for proper operation
Most single breaker replacements take 15-30 minutes.
AFCI and GFCI Breakers
Modern code requires special breakers in certain locations:
AFCI (Arc-Fault Circuit Interrupter)
- Required: Bedrooms, living rooms, family rooms, hallways, closets
- Protects against: Arcing faults that cause fires
- Cost: More than standard breakers
GFCI (Ground-Fault Circuit Interrupter)
- Required: Kitchens, bathrooms, garages, outdoors, basements
- Protects against: Electrical shock
- Cost: More than standard breakers
Dual-Function AFCI/GFCI
- Combines both protections
- Required in kitchens and laundry areas (2020+ code)
When replacing breakers, we may recommend upgrading to AFCI or GFCI for improved safety.
DIY Warning
While changing a breaker looks simple, it's genuinely dangerous:
- Main panel may have live power even with main breaker off
- Wrong breaker type can cause fire
- Improper installation fails inspection
- Working in panels without training risks electrocution
Leave breaker work to licensed electricians. It's not worth the risk.
Service Areas
We service electrical panels throughout the St. Louis metro including Chesterfield, Ballwin, Wildwood, Creve Coeur, Town and Country, Manchester, Kirkwood, Webster Groves, O'Fallon, St. Peters, St. Charles, Wentzville, Lake St. Louis, and Cottleville.
Get Your Panel Inspected
If you're having breaker issues, schedule a panel inspection. We'll diagnose the problem and recommend the right solution, whether that's a single breaker, several replacements, or a panel upgrade.