An electric hob not heating properly is one of the more frustrating faults to live with, because it rarely fails all at once. More often one zone goes cold while the others carry on, or a ring heats weakly and takes an age to bring a pan up to temperature, and you end up rearranging the whole dinner around the ring that still works. Before you write the hob off, it is worth understanding what actually causes these faults, because a good number of them come down to a single inexpensive component rather than the whole appliance. As a local team offering appliance repair in Ormskirk and across West Lancashire and Merseyside, we see these hob faults week in and week out, and the pattern behind them is more predictable than most householders expect.
Why One Zone Goes Cold While the Others Work
The single most common call we get about an electric hob not heating properly is one zone that has stopped working while the rest of the hob is fine. On a solid plate or a radiant ceramic hob, that usually points to the heating element for that zone having failed. Elements do not last forever, and years of heating and cooling cause the resistance wire inside them to weaken until it finally breaks the circuit. When that happens the zone goes completely dead, and no amount of turning the dial will bring it back. The giveaway is that the fault is isolated to one ring while the others behave normally, which tells an engineer straight away that the shared parts of the hob, the supply and the main control, are all healthy and the problem sits in that one zone.
On induction hobs the picture is different, because there is no visible element. Instead each zone has an induction coil and its own control electronics, and a single zone failing to heat can mean a failed coil, a fault on that zone’s power board, or a temperature sensor telling the board to shut the zone down. Induction hobs are also fussier about the pan, so it is always worth checking that the cookware is genuinely induction compatible and sitting central on the zone before assuming the hob is at fault, because a warped pan base or the wrong material will leave a perfectly healthy zone doing nothing.
The Selector Switch and Energy Regulator
When a zone heats but only weakly, or only works on the highest setting, or comes on regardless of where you set the dial, the culprit is very often the control behind the dial rather than the element itself. Traditional radiant and solid-plate hobs use an energy regulator, sometimes called a simmerstat, which switches the element on and off in cycles to hold a set temperature. When one of these wears out, the zone loses its ability to modulate, so it either sits on full power or barely warms at all. A related fault is a worn selector switch on hobs that use one, where the internal contacts have burned or pitted over years of use and no longer pass current cleanly. Both faults produce that maddening symptom of a ring that is technically alive but useless, and both are a straightforward component swap for an engineer once the cause is confirmed.
When the Whole Hob Loses Power
If every zone is dead rather than just one, the fault has moved away from the individual elements and toward the supply or the main control. An electric hob draws a substantial current, so it runs on its own dedicated circuit, and a tripped breaker, a loose connection at the isolator switch or a fault in the hob’s own terminal block will take the entire appliance out. This is where a proper diagnosis matters most, because mains voltage at these connections is genuinely dangerous and the terminals can degrade or overheat over time, particularly in older installations. An engineer will isolate the supply, check the incoming voltage and inspect the connection block before touching anything internal, which is exactly the sort of work that should never be attempted as a DIY job.
Ceramic and Induction Glass Faults
The glass surface itself can be the problem. A cracked ceramic top is not just cosmetic, because a crack that reaches a heating zone can interrupt the heat transfer and, more importantly, allows moisture to reach the electrics beneath, which is a safety issue that means the hob should not be used until it is repaired. On touch-control ceramic and induction hobs, a hob that will not respond at all, or responds erratically, can be down to the touch control board rather than the heating side, and spilled liquid or a build-up of grime across the touch panel will sometimes confuse the controls into refusing to switch a zone on. Wiping the panel clean and drying it thoroughly rules that out before anything more serious is suspected.
Repairing an Electric Hob Rather Than Replacing It
The good news for most householders is that an electric hob not heating properly is usually well worth repairing. An element, an energy regulator, a selector switch or a touch board is a modest cost against a new hob and the expense of having it fitted, and once the faulty component is identified the repair itself is often quick. The exception tends to be older hobs where parts have become hard to source, or a cracked glass top on a model where the replacement glass costs almost as much as a new appliance, and in those cases an honest engineer will tell you plainly that replacement is the more sensible option. That same repair-or-replace judgement applies across the kitchen, and if you are weighing up a tired appliance more generally our guidance on repair or replace in 2026 is worth a read. For a hob that forms part of a freestanding cooker rather than a separate built-in unit, the same faults apply but sit within our wider electric cooker repair work, and a little routine care goes a long way toward avoiding them, as we cover in our advice on how to extend the life of your electric cooker.
Getting Your Hob Looked At
If your electric hob is not heating properly, the quickest route to a working kitchen is a proper diagnosis rather than guesswork or a trip to buy a replacement you may not need. Our qualified engineers cover Ormskirk and the surrounding towns across West Lancashire and Merseyside, carry the parts that most commonly fail on a hob, and will tell you honestly whether a repair makes sense before any work begins. To book a visit, call us on 01695 768 738 and we will get your hob diagnosed and, wherever possible, put right on the first visit.
