A symptom tells you how the cooktop is misbehaving, not which part failed. These are the usual causes behind each one; the diagnosis at your home confirms which applies.
Gas Burner Won't Light
One burner clicks but won't catch, or lights slowly.
Likely causes
- Cap not seated flat
- Ports clogged with food or cleaner
- Igniter wet, dirty or cracked
- Low gas flow at that valve
How we narrow it down: The burner is cleaned and dried, the cap seated and the spark checked. A cracked electrode or faulty valve is replaced.
No Burners Spark
None of the burners click. If you can light them with a match, gas is reaching the cooktop.
Likely causes
- Power off to the cooktop
- Spark module failed
- Wiring shorted by a spill
- Gas supply off
How we narrow it down: Power and gas supply are confirmed, then the spark module and harness tested. The failed module or harness is replaced.
Keeps Clicking
The igniter clicks after the flame is lit, or with all knobs off.
Likely causes
- Spark switch stuck from a spill
- Moisture after cleaning
- Spark module failed
How we narrow it down: The cooktop is allowed to dry, then each switch is tested. The stuck switch or module is replaced.
Yellow, Lifting or Uneven Flame
Flames are yellow or orange, lift from the burner, or are uneven around the ring.
Likely causes
- Ports partly clogged
- Cap seated unevenly
- Wrong orifice for the gas type
- Air shutter out of adjustment
How we narrow it down: The burner is cleaned and the cap seated. The orifice is checked for the gas type, and the air shutter adjusted where possible. A yellow flame produces carbon monoxide and needs correcting.
Gas Smell from the CooktopSafety
A persistent smell of gas near the cooktop. Don't light anything or flip switches, and don't try to find the leak yourself. Leave the house and call CPS Energy or your gas provider from outside.
Likely causes
- Knob left slightly on
- Connector loose or aging
- Valve or fitting leaking
- Burner not lighting while gas flows
How we narrow it down: Once the utility has cleared the site, every joint is leak-tested and the connector checked. Any disturbed joint is leak-tested again before the cooktop is used.
Radiant or Coil Element Not Heating
An element stays cold or heats only partly.
Likely causes
- Element burned out
- Infinite switch failed
- Wiring at the element or switch burned
- Limiter on a radiant element failed
How we narrow it down: The element, switch and wiring are tested. The failed part is replaced.
Element Only Works on High or Won't Adjust
An element heats fully regardless of setting, or only works on high.
Likely causes
- Infinite switch contacts worn or welded
- Control relay stuck on electronic models
- Wiring shorted
How we narrow it down: The switch is tested at several settings and replaced. The wiring is checked for heat damage.
Element Stays On After Being Turned OffSafety
An element keeps glowing or heating after the control is off. Switch off the breaker and leave it off.
Likely causes
- Infinite switch contacts welded
- Control relay stuck closed
- Touch control fault
How we narrow it down: The switch or control relay is tested and replaced. The wiring is checked before power is restored.
Cracked Glass or Ceramic TopSafety
A crack across the glass or ceramic surface. Stop using the cooktop and switch it off at the breaker: spills can reach live elements and wiring underneath.
Likely causes
- Impact from a heavy pot
- Thermal shock
- Frame stress from an uneven installation
How we narrow it down: The glass top is replaced as a part where one is still available for the model, and the elements underneath checked for damage.
Induction Zone Won't Recognize the Pan
The zone flashes or shows a no-pan symbol. Induction needs cookware with a magnetic base: if a magnet doesn't stick firmly to the bottom of the pan, it won't work.
Likely causes
- Cookware not magnetic
- Pan too small for the zone
- Pan base warped
- Pan detection sensor or board fault
How we narrow it down: The pan is tested with a magnet and on another zone. If a suitable pan still isn't detected, the zone's sensor and board are tested.
Induction Zone or Whole Cooktop Dead
One or more zones don't heat, or the whole cooktop won't power on.
Likely causes
- Power board failed
- Cooling fan failed, so the cooktop shuts down to protect itself
- Induction coil failed
- Breaker or wiring fault
How we narrow it down: Power is confirmed at the cooktop, and the cooling fan and power boards tested. The failed board, fan or coil is replaced.
Error Code or Flashing Display
A code or symbol appears and the cooktop stops working.
Likely causes
- Overheating from a blocked cooling vent
- Cooling fan failed
- Sensor fault
- Power board fault
How we narrow it down: The code is read against the model's service data and the cooling path checked. The fan, sensor or board is tested and the failed part replaced.
Induction Buzzing or Fan Noise
A buzz or hum from the pan, or fan noise that runs after cooking. Some buzzing at high power is normal and depends on the cookware.
Likely causes
- Normal vibration from certain cookware
- Cooling fan bearings worn
- Loose component
How we narrow it down: The noise is tested with different cookware. A worn cooling fan is replaced.
Touch Controls Not Responding or Locked
The touch controls ignore input or respond erratically.
Likely causes
- Control lock activated
- Moisture or residue on the touch surface
- Touch control board failed
How we narrow it down: The lock is ruled out and the surface cleaned and dried. The touch board is tested and replaced if needed.
Downdraft Vent Not Rising or Not Pulling
The pop-up vent won't rise, or it rises but doesn't pull smoke.
Likely causes
- Lift motor or gear failed
- Blower motor failed
- Grease filter clogged
- Duct blocked
How we narrow it down: The filter is cleaned and the lift motor and blower tested. The duct is checked for blockage. The failed part is replaced.
Knob Loose, Broken or Spinning Freely
A knob wobbles, spins without turning the valve or switch, or has cracked.
Likely causes
- Knob cracked
- Valve or switch stem worn
- Heat damage from a nearby burner
How we narrow it down: The knob and stem are checked. A replacement knob is ordered by model, and the stem replaced if it's worn.