Electric Element Not Heating? Diagnose the Cause

What an electric slide-in range is

An electric slide-in range has a cooktop on top and an oven below, with the controls at the front of the cooktop so the unit sits flush between the cabinets. The cooktop uses radiant elements under a smooth glass surface. When you turn a knob or touch a control, the element should glow red within a short time. When it does not, the range is not working as it should.

Electric ranges appear in the maker catalogs alongside gas and induction models. LG describes its electric ranges as part of a lineup that also includes gas, dual fuel, and induction models, while Samsung lists electric ranges as using "radiant heat for easy installation, cleanup, and reliable results." The repair path for an electric element is the same regardless of the brand, because the cooktop parts do the same job.

The three likely causes

A single cooktop element that does not heat can have one of three causes. You can narrow them down by paying attention to what happens when you turn the element on, but the range itself must be opened by a qualified technician to confirm the cause.

The three causes are:

• A faulty element: the element's internal wire has broken, so no heat is produced.
• A bad connection: the terminal or receptacle that carries power to the element is loose or corroded.
• A control board issue: the board that runs the cooktop is not sending power to that element.

Faulty element

Radiant elements are replaceable parts. Each element contains a resistance wire that heats when power flows through it. After long use, that wire can break. When it does, the element stays cold even though the control is on. A faulty element is the most straightforward cause because it is a single physical part that a technician can remove and replace.

If the element is the problem, the other elements on the cooktop usually still work, because each element has its own circuit. The technician will inspect the element, check its connection, and install a new one if needed. This is a replacement job, not a wiring job, but the range must be disconnected from power before the work starts.

Bad connection

Power reaches the element through a terminal block or a receptacle under the cooktop. Over time, a terminal can loosen, or the contact surface can corrode. When that happens, power may not reach the element even though the control is on. The element may work intermittently: it heats one time, then stops the next.

A bad connection is harder to spot than a faulty element, because the element itself may be fine. The technician must remove the element, look at the terminals, and check the wires. This is why the cause should be diagnosed by someone with the maker's manual and the right tools, not by an owner who opens the cooktop without training.

Control board issues

The control board manages power to each cooktop element. If the board fails, one element may stop heating while the others still work, or the controls may respond incorrectly. A board issue is less common than a faulty element or a loose connection, but it is a real possibility on a range with electronic controls.

A technician can read the range's error information from the display and check the board with diagnostic tools. If the board is the cause, the repair is more involved than replacing an element. The maker's manual describes which part carries power to the element, and the technician follows that guidance. You do not need to know those details to make a decision; you need the technician's diagnosis.

How to find the cause safely

Your first step is not a repair. It is a phone call to a qualified appliance service technician. The technician will ask what you see: does the element glow at all, does it heat unevenly, does it work sometimes and fail at other times, and do the other elements work? Your answers help the technician narrow down the cause.

Do not open the range's wiring or try to reconnect an element yourself. The United States Fire Administration says cooking is the leading cause of home fires and advises staying in the kitchen while cooking, turning the burner off if you leave the kitchen, and keeping pot handles turned toward the back of the stove. Until the range is repaired, keep the cooktop area clear and watch it closely whenever an element is on.

Repair or replace

Once the technician gives you a quote, compare it with the price of a new electric slide-in range. If the range is still under warranty, the repair may be covered. If the range is old and the technician says the control board is the cause, a new range may make more sense than paying for a board on an aging appliance.

The buying guides on this site compare new electric slide-in ranges on stated details. If you decide to replace the range, start with the best electric slide-in ranges guide. For a standard 30-inch opening, see the best 30 inch slide in ranges guide, and if you want to compare models across fuel types, the best slide-in range guide shows the full range of options.

Questions to ask before buying

If you are replacing the range, read the listings carefully. The cooktop type matters: a smooth-top electric range uses radiant elements, while a coil-top range uses exposed coils. The electric coil vs smooth top article explains the difference. The element types article describes how radiant elements work and what the listing words mean.

Ask the seller how the controls work, whether the cooktop indicator lights show when an element is on, and what the warranty covers. Read the maker's manual for installation instructions before the delivery day. If the range has electronic controls, know that a control board issue is possible later, so check the warranty terms before you buy.

What to pick for your situation

Questions

Why would only one element stop heating?

The cause is usually the element itself or the connection at that element's terminal. If several elements stop at the same time, the control board is more likely. A technician will check the element and the board to confirm.

Can I replace the element myself?

Only if the maker's manual permits it and you are qualified to work with a range that must be disconnected from power. Electricity is dangerous, so most owners should call a service technician. The maker's installation instructions and local codes decide what is allowed.

What if the range is still under warranty?

Check the warranty text from the seller or the maker. If the range is covered, the service visit may be handled by the maker's service partner, which can reduce or remove the cost of the diagnosis.

Is it better to replace the range than repair it?

The answer depends on the age of the range, the technician's quote, and the expected life of the remaining parts. Compare the repair quote with the price of a new electric slide-in range; the guides on this site compare stated details to help you see what a new range includes.

What does the control board do on an electric range?

The control board manages power to the cooktop elements and responds to the knobs or touch controls. When it fails, one or more elements may stop heating or respond incorrectly. The technician can tell you whether the board or the element is the cause.