An electric range is the largest single electrical load in most kitchens. It runs on a dedicated 240-volt circuit with heavy wiring, a double breaker and a large receptacle behind the range. When something goes wrong with that circuit, the symptoms look a lot like a failed element or control board. Knowing the difference saves you from replacing parts that were never the problem.
This is especially worth understanding in the region's older housing, from prewar twins in Glenside or Collingswood to 1950s houses in Levittown and Willingboro, where a kitchen may have been renovated several times on top of wiring from decades earlier, and in homes that switched from gas to electric cooking.
How the circuit works, briefly
The range uses both legs of your home's 240-volt supply for the bake and broil elements and for large surface elements. Lights, clocks, controls and convection fans run on 120 volts from one leg plus the neutral. That split explains many of the odd symptoms below: if one leg is lost, part of the range keeps working and part does not.
The size of the breaker, wire and receptacle are set by the range's rating and by electrical code. Your range's installation guide states its electrical rating; a licensed electrician determines the circuit that matches it.
Symptom: the clock and lights work, but nothing heats
This is the classic sign that one leg of the 240-volt supply is missing.
Possible circuit causes:
- •One half of a double breaker has tripped or failed internally.
- •A loose or burned connection at the receptacle or the range's terminal block.
- •A damaged range cord.
Possible range causes:
- •A failed main relay or control board that energizes the elements.
- •A failed oven temperature sensor that keeps the oven from calling for heat (affects the oven only).
What you can safely check: Look at the breaker panel. Turn the range's double breaker fully off, then firmly back on. If heating returns, note it and watch for a repeat. If the breaker trips again, stop and get help.
Symptom: everything heats, but weakly
Elements that glow dull, an oven that takes far too long to preheat, and surface units that cannot hold a boil can point to a voltage problem.
- •If your home's supply is actually 208 volts rather than 240, which is common in some apartment and condo buildings with three-phase service, a range designed for 240 will heat more slowly. Many ranges are rated for both, with a lower wattage at 208. Your range's rating plate or installation guide will say.
- •A high-resistance connection somewhere in the circuit causes voltage to drop under load.
- •If only one element is weak, the problem is usually that element or its switch, not the circuit.
Symptom: breaker trips when the oven or a large burner is on
- •Trips immediately when you turn on one element: often a shorted element. Look for a bubbled, cracked or blistered spot on coil elements, or a hot spot under a glass top.
- •Trips after running a while: can be an overloaded or weak breaker, a loose connection heating up, or the range drawing more than the circuit was sized for, for example a larger range installed on an old, smaller circuit.
- •Trips during self-clean: self-clean runs the oven at its hottest for a long time. Weak breakers and borderline connections tend to show up here first.
If a breaker trips more than once, do not keep resetting it. Have an electrician or appliance technician find the cause.
Symptom: burned smell or discoloration at the back of the range
Pull the range out only if you can do so safely and the anti-tip bracket allows it. Look at the receptacle and the plug:
- •Brown or black discoloration
- •Melted plastic
- •A plug that is loose in the receptacle
Any of these means stop using the range and turn off its breaker. A failing receptacle can start a fire inside the wall. Replacing it is an electrician's job, and the cord and range terminal block should be checked too.
The three-wire and four-wire question
Like dryers, electric ranges connect with either a three-wire or a four-wire cord, depending on the receptacle. The four-wire arrangement has a separate ground; the three-wire one bonds the cabinet to the neutral. Older kitchens often still have three-wire range receptacles. The cord must match the receptacle, and the range's terminal block must be set up for that cord, including the neutral bonding strap. Our dryer article on 3-wire vs. 4-wire cords explains the same principle in detail.
Switching from gas to electric
If you are replacing a gas range with an electric one, you will almost certainly need a new circuit. A gas range only needs a standard 120-volt outlet. Running a dedicated 240-volt circuit to the kitchen requires a licensed electrician, panel capacity to support it, and in most cases a permit from your township or borough code office (in Pennsylvania) or your town's construction official (in New Jersey). Ask the electrician to check:
- •Whether your service and panel have room for the new circuit.
- •The range's rating, from its installation guide, so the circuit is sized correctly.
- •Where the receptacle should sit so it fits inside the range's recess at the back.
Induction ranges have the same requirement and are often rated for higher loads than basic electric ranges, so look at the specific model's specs before the electrician sizes anything.
The gas line, once it is no longer used, should be capped by a licensed plumber.
Quick reference
| What you notice | Check first | Likely culprit |
|---|---|---|
| Clock works, nothing heats | Double breaker | Lost leg, control relay |
| Only one element dead | That element and its switch | Element, switch, terminal |
| All elements weak | Building voltage, connections | 208 V supply, high-resistance connection |
| Breaker trips immediately | Elements for visible damage | Shorted element |
| Burned smell at back | Receptacle and cord, breaker off | Overheating connection |
For layout questions in a tight kitchen, see our guide on range clearance to cabinets.
When to call a technician
If the breaker holds, the receptacle looks clean and the range still will not heat properly, the problem is in the appliance: an element, an infinite switch, a relay on the control board, a temperature sensor or a wiring harness. A technician can measure voltage at the terminal block to confirm whether the supply is fine and then trace the fault inside the range. Learn more on our range repair and oven repair pages, and book a visit online.