Range cooktop burners will not spark, or spark continuously
Very common issue — here is how we diagnose it, which parts are usually involved, and when to call a pro.
- Very common
- Starts with cleaning
- Pro Range
Symptoms
What you will notice
- No clicking when the knob is pushed in
- One burner will not spark
- Clicking that will not stop even with all knobs off
- Sparking but no ignition
Likely causes
What is usually behind it
- Ignition electrode / burner ports blocked by debris, grease or spillagemost common
- Moisture around the electrode after a spill or cleaningvery common (causes continuous clicking)
- Ignition switch jammed or damagedcommon
- Spark module / spark generator failedcommon
- Burner head incorrectly located after cleaningcommon
- No power to the rangecheck first
Diagnostics
How a technician diagnoses it
Our technicians follow the factory diagnostic path for this fault.
- 1Confirm power is on — the burners will not spark without it, even though gas is present.
- 2For continuous clicking: turn everything off, dry and clean the ignition electrodes to remove grease and debris, and let the area dry fully.
- 3Check the ignition switch is not jammed.
- 4If cleaning does not resolve it, check the spark electrode and spark wire before condemning the module. If those are good, the spark module is likely defective.
- 5Confirm burner heads and caps are correctly seated after any cleaning.
Safety & DIY disclaimer
Guides on this site are for information only. Appliance repair involves 240V electricity, gas connections, refrigerant and heavy cast-iron parts — anything you do yourself is at your own risk and can damage the appliance or cause injury. The safe option is to book a qualified technician.
Parts
Parts usually needed
We confirm the failing part with diagnostics before replacing anything.
Coverage
Appliances affected
Keep reading
Related AGA problems
Frequently asked questions
Can I fix this myself?
Starts with cleaning. You can try the basic checks listed on this page; if the symptom returns, book a diagnostic visit.
How much does it cost to fix this issue?
Every visit starts with diagnostics and a written estimate — the diagnostic fee applies toward your repair when you proceed. We never start work without your approval.
Not sure? We diagnose first.
Book a diagnostic visit — you get a written estimate before any work, and the diagnostic fee applies toward your repair.
Mon–Sun 8:00AM–8:00PM
Independent service company — not affiliated with or authorized by AGA / AGA Rangemaster (Middleby). We repair out-of-warranty AGA appliances.