Signs your service panel has run out of room

An electrical panel does not usually announce that it has had enough. It gets slowly busier, absorbs one project after another, and then starts producing small irritations that never quite add up to an emergency. That is why panels tend to get replaced years after the point at which they should have been.

Here is what the warning signs actually look like, in roughly the order people notice them.

There are no spare positions left

Open the door and look at the directory card. If every position is filled, any future work means displacing something rather than adding to it. That is not an emergency, but it does mean the next job you commission is going to be more expensive and more disruptive than you expect, because part of it will be making room.

It is also the cheapest moment to plan an upgrade, because you are doing it on your schedule rather than in the middle of a kitchen being installed.

Tandem breakers have appeared

A tandem, sometimes called a slimline or a half height breaker, fits two circuits into one position. Used where the panel is designed for them, they are perfectly legitimate. Used as a way of manufacturing space in a panel that was already full, they are a sign that somebody has already solved this problem once by working around it.

If half your panel is tandems, the panel has effectively been expanded without the service behind it being expanded. That is the situation where a rewire of one room can uncover a much larger conversation.

The same circuits keep tripping

A single circuit that trips has a problem of its own. Several circuits that trip in rotation, especially in winter when heating loads go up, is usually the service being asked for more than it has.

The clue is that the tripping moves. Fix one and the symptom reappears somewhere else a few weeks later. Chasing that around the house one circuit at a time is the most expensive way to arrive at the answer.

Lights dim when something large starts

A brief dip when a big motor starts, an air conditioner or a well pump for instance, is not unusual. A noticeable dim across the whole house every time, or lights that flicker when an appliance cycles, is worth mentioning to an electrician. It can be an indication that the service, the main connections or a neutral is under more strain than it should be.

The panel is warm, or it smells

This is the one that should not wait. A panel cover that is warm to the touch, any smell of hot plastic near it, any scorch marking around a breaker, or a buzzing or crackling sound, all mean something is making heat where it should not. Stop reading and call an electrician.

It is a very old panel and nobody has looked in years

A lot of the housing stock around Rochester Hills and the surrounding county was wired for a household with a fraction of the connected load of a modern one. Age by itself is not a fault. Age combined with several decades of additions is worth an inspection, particularly if you are buying the house or about to spend money on it.

Why upgrading beats adding one more circuit

• It fixes the cause instead of the symptom, so the nuisance tripping stops rather than relocating.
• It is planned work rather than emergency work, which means it happens when it suits you.
• It gives the next project somewhere to land, instead of each new circuit being an excavation.
• It is one visit rather than the three that chasing individual circuits usually turns into.

What an estimate involves

Someone looks at what is there, asks what the property is actually being asked to carry now, and tells you the difference between the two. That conversation is where it becomes obvious whether you are buying a repair or buying another six months.

Brandon Electric does service panel upgrades for homes, commercial premises and industrial sites across Oakland and Macomb County, and estimates are free. If you are not sure whether your panel is full, open the door, photograph the directory card, and call it in.