Jenn-Air CVG2420W cooktop Parts

On your Jenn-Air CVG2420W gas cooktop, an igniter that keeps clicking usually means the burner is not sensing a steady flame. The most common causes are moisture or food residue around the igniter, a burner cap that is not seated correctly, or an ignition component problem that keeps the spark circuit active.

Quick fixes to try first

• Turn the burner off and let the area cool completely.
• Remove the grate and burner cap; dry everything thoroughly (especially after boil-overs or cleaning).
• Clean the igniter tip and burner ports with a soft brush or toothpick (do not enlarge ports).
• Re-seat the burner cap so it sits flat and centered.
• Try lighting a different burner; note whether the clicking happens on one burner or all burners.

What the clicking pattern tells you

What you notice	Most likely cause	What to do
Clicks only on one burner	Wet/dirty igniter area or misaligned cap	Dry, clean, and re-seat the cap
Clicks on multiple burners	Stuck ignition switch or spark module issue	Inspect switches; plan for diagnosis
Clicks even when all knobs are OFF	Moisture in switches or a shorted ignition circuit	Dry thoroughly; if it continues, service is needed

Parts that can be involved (when cleaning does not solve it)

We list several CVG2420W parts on this page; for ignition-related symptoms, these are commonly checked during diagnosis:

• Fan switch WP74009254 (a switch can fail and create odd electrical symptoms)
• Knob fan switch W11715914 (a cracked or loose knob can prevent a switch from returning properly)

Why it matters

Continuous sparking is more than an annoyance; it can wear the igniter system faster and can indicate moisture intrusion or an electrical fault. Fixing the root cause helps the burner light reliably and prevents repeat clicking after cleaning.

If you still get clicking after drying and cleaning

• Leave the cooktop unused for several hours to allow internal moisture to evaporate.
• If clicking persists (especially with knobs OFF), have a qualified technician diagnose the ignition circuit.

Last updated: February 2026

Common problems we see on Jenn-Air cooking appliances include burners that click but won’t light, weak or uneven flames, constant sparking, and controls that don’t respond. For your Jenn-Air CVG2420W gas cooktop, most issues trace back to dirty burner parts, ignition components, or airflow/venting parts.

Most common symptoms and what they usually mean

• Burner clicks but won’t light: clogged burner ports, moisture after cleaning, or a weak spark path
• Burner lights slowly or unevenly: dirty burner head/cap, misaligned parts, or low gas flow
• Igniters keep clicking after the flame is on: wet/dirty igniter area or a sticking igniter switch
• No burners light at all: gas supply shutoff/regulator issue, or an ignition power problem
• Downdraft/vent fan issues (if equipped): restricted filter or a worn blower wheel

Quick checks you can do first (no parts)

1. Make sure burner caps are seated flat and centered.
2. Clean burner ports with a soft brush; clear debris from the igniter area.
3. Dry everything thoroughly if the problem started after cleaning.
4. Try a different burner to see if the issue follows the knob position or stays with one burner.
5. If you smell gas or suspect a gas leak, stop and have a qualified technician check the cooktop.

Parts that commonly solve these problems

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

Symptom	Part that may be involved	Example from this model’s parts
Vent fan noisy or weak airflow	Blower wheel or filter	Blower wheel WPY707985, filter WPY706012
Fan won’t change speeds or won’t turn on	Fan switch or knob	Fan switch WP74009254, knob fan switch W11715914
Weak/unstable flame across burners	Gas regulation issue	Pressure regulator W11106948

Why it matters

Ignition and flame problems can cause delayed lighting, uneven cooking, and extra wear on igniters and switches. Venting problems can reduce smoke and odor removal and make the cooktop louder during use.

Last updated: February 2026

For Jenn-Air model CVG2420W, ignition troubleshooting applies to the cooktop surface burners (this model is a gas cooktop, not an oven). Most “won’t ignite” problems come from a wet or dirty igniter area, a mis-seated burner cap, or a failed spark ignition component.

Quick checks (most common fixes)

• Confirm the burner cap is centered and sitting flat.
• Clean burner ports and the area around the electrode tip.
• Dry the burner head and electrode completely after cleaning.
• Listen for clicking when turning the knob to LITE.
• Try another burner; this helps separate a single-burner issue from an ignition-system issue.

What the symptoms usually mean

What you see/hear	Most likely cause	What to do
No clicking on any burner	No power to ignition, failed ignition circuit	Verify power, then inspect ignition components
Clicking but no flame	Clogged ports, cap not seated, gas supply issue	Clean ports, re-seat cap, confirm gas is on
Constant clicking	Moisture, debris, or a stuck igniter switch	Dry thoroughly, clean around switches
Gas smell but no ignition	Ignition failure	Turn knob OFF, ventilate, then troubleshoot spark

When a part is involved

If you’ve confirmed power and gas supply and cleaning does not restore ignition, the issue is typically in the spark ignition circuit (switches, wiring, spark module) or gas regulation.

• Use our step-by-step guide: how to replace a spark igniter switch on a gas cooktop
• If you suspect inconsistent gas pressure to the burners, check the regulator: pressure regulator W11106948

Why it matters

A weak or failed ignition can cause delayed lighting and unburned gas. Cleaning and correct burner assembly fix many cases quickly; replacing the failed ignition component prevents repeat no-light symptoms.

Last updated: February 2026

A Jenn-Air oven lasts 15 years. That is the typical service life for most built-in wall ovens and range ovens when they are used normally and kept in good repair. This CVG2420W page is for a Jenn-Air gas cooktop, but the oven lifespan guidance still applies to Jenn-Air ovens in general.

Lifespan at a glance

Appliance type	Typical lifespan	What usually wears first
Jenn-Air oven (wall oven or range oven)	15 years	Bake/broil heating system, temperature sensor, control board, door gasket
Gas cooktop (like model CVG2420W)	15 years	Ignition parts, switches/knobs, gas regulation, ventilation components

What helps an oven reach its full lifespan

• Keep the oven cavity and door seal clean so heat stays consistent
• Avoid slamming the door; it stresses hinges and the door switch
• Use the self-clean feature sparingly; extreme heat accelerates wear on electronics
• Fix temperature swings early (sensor or control issues can cascade)
• Protect electronics from power spikes with a quality surge protector rated for the circuit

If you are troubleshooting the CVG2420W cooktop instead

Common cooktop issues that are often solved with a replacement part include:

• Weak downdraft or noisy ventilation: blower wheel WPY707985
• Fan control not responding: fan switch WP74009254
• Burner flames too high/low or inconsistent (gas pressure related): pressure regulator W11106948

Why it matters

A 15-year lifespan is a practical benchmark for planning repairs: if performance problems are isolated to a single component, replacing that part often restores safe, reliable cooking without replacing the whole appliance.

Last updated: February 2026