A burner going cold in the middle of dinner is one of the more common electric-range calls we take across the Bay Area. Good news: it’s usually one of four parts, and a one-minute test tells you which direction to look before anyone opens the cooktop.
Start with the swap test
Let the stove cool all the way down. Pull the dead coil straight out of its socket and plug a working coil of the same size into that same spot. Turn it on.
- Good coil heats there? The original coil was the problem.
- Good coil stays cold too? The fault is upstream, in the socket, the switch, or the wiring behind it.
That’s the whole test. What you do with the answer is where it gets technical.
The four parts that kill a burner
The coil element. Spills, age, and heat cycling wear it out. A coil with a visible break, blister, or bubble in the sheath is finished.
The socket, or burner receptacle. This is the block the coil prongs slide into. Arcing and heat cycling scorch the contacts over time. Browning, melted plastic, pitting, or corrosion in there means stop using that burner now. A burnt socket damages the coil and the wiring behind it, and it worsens every time you run it.
The infinite switch. That’s the knob control that pulses the element to hold temperature. If the burner only works on some settings, never gets fully hot, or the coil and socket both test clean, the switch is the likely culprit. Replacing it means opening the cooktop and working around 240-volt terminals.
The wiring or terminal block. Less common, but a loose or burnt connection behind the socket can look exactly like a dead switch. Finding it takes a meter and knowing where it’s safe to probe.
Is the clicking normal?
On low and medium, the infinite switch cycles the element on and off to average the heat, and that rhythmic pulsing is fine. It’s only a fault when the burner cycles on the highest setting or never reaches full heat.
Coil versus smooth top
On a smooth-top radiant range the element lives under the glass, bolted to 240-volt terminals, and getting to it means lifting the glass. A failed radiant element, cracked glass, or a bad control board is always a pro job. For a wider look at range types and their repairs, see our oven and stove repair guide.
When to book us
If the swap test shows the socket is dead, book it. If you see any scorching or melting at the socket, stop using that burner and book it. Anything touching the socket, the switch, the terminal block, or a smooth-top element is 240-volt work. Get it wrong and you can cook the insulation, trip breakers, or leave a hazard that costs more later. This isn’t a place for guessing.
Our cooking appliance repair service covers all of it. We diagnose the socket, switch, and wiring, then fix it right. Call (925) 999-4095 or email [email protected]. The $75 diagnostic is credited to the repair when you book, and you get the price after we’ve actually seen the fault. You can also reach us through our contact page.