Gas range parts · Los Angeles
Spark Module
In one sentence
A spark module is the small sealed control that steps household current up into the high-voltage pulses your burners light from. When one is in trouble the whole top goes together rather than one ring at a time, and that pattern is what tells it apart from an electrode.
Viking Pro Appliance Repair Los Angeles · (213) 516-4020
What it actually does
Turning a knob past the off mark closes a switch, and the module answers by firing a burst of high-voltage pulses down the leads to the electrodes. That is the whole of its job: make a spark big enough to jump a small gap, over and over, until something lights. What it cannot do is put right a burner that is not getting gas — the spark goes on arriving at a ring that never catches, which is why a burner clicking away is evidence about the ignition side and tells you nothing at all about the gas.
How it fails, and what that sounds like
Rarely all at once. The usual story is a cooktop that has been ticking for longer and longer over a few months, then one morning fires nothing at all. Heat and years are the ordinary causes; a boil-over that found its way down a lead is the other. The tell is always the same, and it is worth more than any description of the noise: the fault is on every burner rather than on one.
A spark module — healthy, failing, and what it costs to leave
| Part of the assembly | Healthy | Failing | What ignoring it costs |
|---|---|---|---|
| Sound | A steady, even tick at the burner you are lighting, and quiet again once it has caught. | Ticking that runs on long after the burner lights, or never starts at all. | Gas keeps arriving while nothing burns it, so the light-up gets louder each time. |
| Spread | The top ticks as one, and whichever burner you asked for lights within a second or two. | The whole cooktop goes quiet at once, or every ring lights slowly. | A single part gets replaced four times over as one electrode after another is blamed. |
| Behaviour when damp | Unbothered. It sits away from the spill zone and dries out on its own. | Dies after a boil-over and does not recover once the cooktop is dry. | The kitchen loses its whole top for the sake of one component a van carries. |
Follow-ups
Every burner clicks when I turn one knob. Has the module failed?
Probably not. On the ranges we see most, the whole top ticks whichever knob you touch, and owners report it as a fault far more often than it is one. What matters is which burner then lights. Viking Pro Appliance Repair Los Angeles suspects the module when nothing lights at all, on (213) 516-4020.
How do you tell a bad module from a bad electrode?
By how many burners misbehave. One stubborn ring is almost always its own electrode or a blocked port; a whole cooktop that has gone quiet or will not stop ticking points upstream to the module. Viking Pro Appliance Repair Los Angeles measures the output rather than swapping parts to find out, on (213) 516-4020.
Can the clicking damage anything if I leave it?
The noise will not, but what goes with it can. A burner that ticks a long time before catching has been letting gas gather around the cap each time, and that lights with a thump instead of a whisper. Stop using that ring and ring Viking Pro Appliance Repair Los Angeles on (213) 516-4020.
Signed by
Keiko Mabuchi
- Works on
- Service technician — cooktops and ventilation
- Years on the tools
- 11
- Certified
- EPA Section 608 certified
Before suspecting the module, rule out the cheap cause with the drying-out routine.
The module feeds the spark electrodes, and a single bad electrode can imitate a failed module.
The full walk-through of a burner that ticks without catching is in the clicking-burner guide.