Check one: power at the panel and under the counter
These cooktop troubleshooting checks start with electricity, because every cooktop needs it, gas ones included, and the supply is easy to lose track of when it is hidden. A gas cooktop typically plugs into an ordinary 120-volt grounded outlet inside the base cabinet, and Whirlpool's cooktop pages ask for that outlet to be on a dedicated circuit. Electric and induction tops need a 240-volt circuit, usually through a short armored cable into a junction box on the cabinet wall, sometimes through a heavy cord and receptacle.
Find the breaker labeled for the cooktop. A tripped breaker sits between on and off, or shows a colored flag; push it fully off, then back on. If the cooktop still shows nothing, Whirlpool's reset for its glass-top models is a minute with the breaker off, then power restored and a further minute of watching for any error to come back.
A breaker that trips again
One reset is a check; repeated resets are not. A cooktop breaker that trips a second time, especially the moment a certain zone is switched on, points to a short in an element, a coil, a board or the wiring. Leave it off and book, and mention which zone or knob sets it off.
Looking in the cabinet without opening anything
Empty the drawers or shelves below the cooktop and use a flashlight. You are looking for a plug pulled half out by a drawer, a cord pinched by a drawer runner, scorch marks at a receptacle, or a junction box cover that has come loose. Report what you see; never remove a cover or touch the conductors inside it.
Source: Whirlpool — Nothing Will Work, Gas Cooktop — Gas cooktops plug into a grounded 120-volt outlet on a dedicated circuit; check the breaker and the main gas valve; air in the line after installation; with a lockout, burners will not light during a power failure; Whirlpool — Lock, Electric and Induction Cooktop — Hold LOCK for 3 seconds to unlock; power reset: circuit off sixty seconds, restored, then observed a further minute; Whirlpool — Cooktop Not Working, Electric Cooktop — Electric cooktops need a 240-volt dedicated circuit; reset a tripped breaker and call an electrician if the problem persists
Check two: the gas shutoff on a gas cooktop or rangetop
The manual shutoff for a drop-in gas cooktop is usually in the same base cabinet, where a rigid pipe meets a flexible connector; for a pro rangetop on its own base cabinet it may be behind a removable lower panel. Whirlpool's first gas question is simply whether the valve is on: a lever handle running parallel to the pipe is open, and one across it is closed.
Valves get bumped closed when the cabinet is packed full, when a plumber has worked under the sink next door, or after a remodel. Opening a closed valve is the whole of the owner's part. If a newly installed cooktop still will not light, Whirlpool explains that a fresh line may still hold air, which one burner run for a moment will push out.
Source: Whirlpool — Nothing Will Work, Gas Cooktop — Gas cooktops plug into a grounded 120-volt outlet on a dedicated circuit; check the breaker and the main gas valve; air in the line after installation; with a lockout, burners will not light during a power failure; Con Edison — Gas Safety — If you smell gas, leave at once, do not operate switches, phones or appliances, and call from a safe place
Check three: locks, power cuts and control settings
Many touch-control cooktops, and some gas models with electronic controls, have a lock that keeps every zone from starting. It is usually a key marked with a padlock or the word lock, which you hold down for roughly three seconds. One older GE induction cooktop, per its manual, powers back up locked whenever power is restored after an outage, and Whirlpool notes that a gas cooktop with a lockout will not light its burners during a power failure.
- A lock light or padlock symbol lit on the glass.
- A demo or showroom mode left on by the installer, which lights the display but heats nothing; the manual gives the exit sequence.
- A zone set but not confirmed: many touch tops cancel a selection if no power level follows within a few seconds.
- Water, a damp cloth or a pan handle lying across the touch keys.
Source: Whirlpool — Nothing Will Work, Gas Cooktop — Gas cooktops plug into a grounded 120-volt outlet on a dedicated circuit; check the breaker and the main gas valve; air in the line after installation; with a lockout, burners will not light during a power failure; Whirlpool — Lock, Electric and Induction Cooktop — Hold LOCK for 3 seconds to unlock; power reset: circuit off sixty seconds, restored, then observed a further minute; GE Appliances — Induction Cooktop Use and Care and Installation Instructions, models JP392R and JP692R (49-8269) — Controls lock when the cooktop is first connected or power is restored after a failure; cracked glass top: turn off the breaker and call for service
Check four: what is on top of the cooktop
With a gas model, raise every grate and inspect the caps underneath. A cap sitting askew, a head that is wet after cleaning, or ports crusted with food will stop a burner lighting or make the flame ragged, and each has its own fix in our guide to a burner that clicks without lighting. On a rangetop with a griddle or grill, check that the drip tray is in place and the griddle burner's knob is the one you think it is.
On glass, look along the surface in raking light for a crack or a chip, and set a pan you trust on the zone that seems weak. For induction that means a pan a magnet grips across its base; for radiant, a heavy flat-bottomed pan that does not rock.
If the glass is cracked
Stop the checks there. A crack can let spills reach live parts underneath, so cut its circuit at the panel and keep it dead until new glass is fitted.
Check five: one timed test, and notes for the technician
Heat a quart of water in a flat pan on the suspect zone or burner at full power and note how many minutes it takes to boil. Do the same on a zone of similar size that works. A big difference, a zone that never boils, or a flame that shrinks partway through gives a technician a concrete starting point instead of a description of a feeling.
Before booking, gather what makes the visit shorter:
- The model and serial numbers, from the plate under the cooktop or on the paperwork.
- Which burner or zone, what it does, and whether it happens cold or only after some minutes.
- Anything shown on the display, written exactly as it appears.
- Roughly how old the cooktop is, and whether it sits over a wall oven or drawers.
