Diagnosing a Temperamental Stovetop

Got a call from a homeowner in Delta whose electric range was only heating intermittently. When we took the glass top off, we could see that the connections to the main radiant elements were loose and corroded, and one of the switches wasn’t engaging properly. It was causing uneven heating and frustrating the client. We replaced the faulty dual-element switch, cleaned all the terminal connections, and secured the wiring to prevent future issues. Now, all the burners are heating reliably, and the stovetop is back to being a trusted kitchen tool. It’s all about tracing the problem back to the source.

What the customer reported

A homeowner in Delta called us because their electric range was only heating intermittently. Sometimes the burners did their job and sometimes they didn’t, which can be more annoying than a stove that’s dead outright. You can’t plan a meal around a cooktop that heats unevenly, and the customer was understandably frustrated. Faults that come and go like this usually point to a poor connection somewhere in the power path not a part that has failed completely.

What the diagnosis found

Once the glass top was off, we could see that the connections to the main radiant elements were loose and corroded. That alone can explain a burner that comes and goes, because a loose or corroded terminal makes it harder for electricity to reach the element consistently. We also found that one of the switches wasn’t engaging properly. So there were two problems working together: poor connections at the elements and a switch that wasn’t doing its job. It’s a good reminder to keep looking after you find the first fault, because fixing only one of them would likely have left the customer with a stove that still misbehaved.

The part and the repair

We replaced the faulty dual-element switch. On many electric ranges, a dual-element switch is what lets a burner with two heating zones, such as an inner and an outer ring, be controlled properly, so a switch that isn’t engaging can lead to uneven heat. We then cleaned all of the terminal connections and secured the wiring so it wouldn’t work loose again. When we were done, all the burners were heating reliably and the stovetop was back to being something the household could count on every day.

How to avoid this fault

Wipe up boil-overs and spills around the cooktop promptly, because moisture and residue that reach the wiring area can contribute to corrosion over time. If a burner starts heating unevenly, have it looked at early instead of waiting for it to stop altogether.

Why it matters

On most glass-top electric ranges, the radiant elements sit under the glass and glow as electricity passes through them. A switch controls how much power each element receives, and that’s what sets the heat level you choose. Those terminals carry a lot of current, so even a small amount of corrosion or looseness can cause trouble, including uneven heating. The exact parts vary by make and model, but the principle is the same everywhere: clean, tight connections and a switch that engages fully are what keep a cooktop heating the way you expect. It’s all about tracing the problem back to the source, instead of guessing at a part.