Whirlpool SC8720EDB0 30" gas convertible cooktop Parts

Your Whirlpool SC8720EDB0 30" gas convertible cooktop does not use a standing pilot light. It uses an electronic ignition system that sparks when you turn a burner knob to LITE, and the burner should light within about 4 seconds; if it does not, focus on ignition and gas supply checks instead of relighting a pilot. See the installation guide.

How ignition works on this cooktop

When you turn a surface burner control knob to LITE, the ignitor sparks until the flame lights. After ignition, turn the knob to your desired setting and do not leave it on LITE.

What to do if a burner will not light

• Confirm the gas supply shutoff valve is fully open.
• Push in and turn the knob to LITE; listen for clicking (spark).
• If it clicks but will not light, clean and dry the burner area (spills and moisture can block ignition).
• If it lights on HI but not on LO, the low flame may need adjustment at the valve stem.
• If there is no clicking on any burner, check power to the cooktop (electronic ignition needs electricity).

Quick checks: symptom to likely cause

What you notice	Most common cause	What we recommend
Clicking spark, no flame	Gas not reaching burner, clogged ports, wet burner	Clean/dry burner; verify gas is on
No clicking on any burner	No power to ignition system	Restore power; re-test
One burner clicks, others OK	Dirty ignitor area or failed ignitor/switch	Clean first; then consider parts
Flame is weak or lifts/blows off	Air shutter needs adjustment	Adjust air shutter for a steady blue flame

Parts that commonly fix “won’t ignite” problems

If cleaning and power checks do not solve it, these model-specific parts are commonly involved in ignition and flame control:

• Surface igniter WP71002179 (creates the spark at the burner)
• Switch WPY704512 (sends power to spark when the knob is turned)
• Burner valve WPY04100188 (controls gas flow to the burner)

Why it matters

Trying to “relight a pilot” on an electronic-ignition cooktop can waste time and delay the real fix. On SC8720EDB0, reliable ignition depends on a clean burner/ignitor area, steady electrical power, and proper gas flow and air shutter adjustment.

Last updated: February 2026

A Whirlpool gas oven typically resets by clearing the control and restoring power; however, model SC8720EDB0 is a 30 inch gas convertible cooktop (not an oven), so the most useful “reset” is to turn all burner knobs to OFF, then cycle power to the cooktop for 1 minute and restore power. For model-specific operating steps, use the SC8720EDB0 owner's manual.

Quick reset steps (SC8720EDB0 cooktop)

• Turn every surface burner control knob to OFF.
• If a burner was stuck sparking, wait 30 seconds so the igniters stop clicking.
• Unplug the cooktop (or switch the circuit breaker OFF) for 60 seconds.
• Restore power.
• Push in and turn a knob to LITE, then move it to LO once the flame lights.

If the issue is “won’t light” or “keeps clicking”

On this Whirlpool cooktop, most “reset” complaints are really ignition or gas-flow problems.

• No flame at all: confirm the manual shutoff valve is open and gas is available.
• Clicks but won’t ignite: clean and dry the burner cap and igniter area; moisture and food spills block spark-to-gas ignition.
• Lights on HI but dies on LO: the low flame may need adjustment at the valve stem (a small adjustment screw under the knob).
• One burner only: swap knobs between burners to see if the symptom follows the knob.

Common causes and what to check

Symptom	Most common cause	What we do next
No burners light	Gas supply shutoff closed or no power	Verify shutoff is open; verify outlet/breaker power
One burner won’t light	Dirty burner/igniter or failed igniter	Clean first; then consider replacing the surface igniter WP71002179
Burner won’t turn or feels loose	Worn knob or valve issue	Inspect knob; consider burner valve WPY04100188 if the valve stem is damaged

Why it matters

A proper reset and relight sequence helps prevent unburned gas buildup and confirms whether the problem is power, ignition, or gas flow. The installation instructions also emphasize checking for gas leaks with soapy water, not a flame.

Last updated: February 2026

On your Whirlpool SC8720EDB0 gas cooktop, the burners ignite only when the control knob is pushed in and turned to the LITE (ignite) position; the igniter will keep sparking until you turn the knob to a flame setting. If it clicks but will not light, moisture or a blocked burner port is a common cause; drying and cleaning the burner area usually restores ignition. See the installation guide for the model’s electronic ignition and burner-check steps.

Quick checks we recommend (most common fixes)

• Confirm the knob is pushed down and aligned to LITE, then hold briefly while the burner lights.
• If you recently cleaned the cooktop or had a spill, dry the burner head and ports thoroughly.
• Remove the burner cap and check that burner ports are clear (no food, grease, or cleaner residue).
• Make sure the burner parts are seated correctly after cleaning.
• If you smell gas, follow the safety steps in the installation guide and stop troubleshooting.

What “clicking but not lighting” usually means

When you turn the knob to LITE, the cooktop’s electronic ignition creates a spark. If you hear clicking but see no flame, the issue is usually gas flow at the burner or ignition at the burner.

Symptom	Most likely cause	What to do next
Clicking, no flame, burner was just cleaned	Moisture in ports/cap	Dry parts; wait a few minutes; retry on LITE
Clicking, weak or delayed lighting	Clogged ports or misaligned cap	Clean ports; reseat cap and burner head
No clicking on one burner	Ignition switch issue	Inspect the switch; consider replacing switch WPY704512
No clicking on all burners	Power supply issue	Check outlet and cord; restore power

Parts that commonly solve ignition problems

If cleaning and drying do not fix it, these model-matched parts are often involved:

• Surface igniter WP71002179 (creates the spark at the burner)
• Switch WPY704512 (signals ignition when the knob is turned)
• Burner valve WPY04100188 (controls gas flow to the burner)

Why it matters

A burner that will not ignite can lead to delayed ignition, uneven flames, and unsafe operation. Getting reliable lighting also helps you confirm the cooktop is operating within the normal “lights within a few seconds” range described in the installation guide.

Last updated: February 2026