KitchenAid Stove Repair in Toronto — No spark (igniter failure)

• No spark on ANY surface burner after a power outage is most often KitchenAid's Cooktop Lockout, not a failed part - the cheapest and most common no-spark cause we rule out first. KitchenAid's own ProductHelp ('Gas Burners are Clicking but Not Lighting') states that when the control is locked out the surface burners cannot be turned on, and that the appliance enters Control Lockout whenever it loses or is first supplied power; the fix is to touch the lock key for 3 seconds (one long tone, indicator off). As general post-outage practice we may also cycle the breaker off for a minute. We then purge air from the lines on a freshly installed or re-gassed range ('turn on any one of the surface burner knobs to release air from the gas lines') and confirm the manual shut-off is open - a $0 reset clears a large share of 'whole cooktop dead, no spark' calls before any electrode or module is touched.
• One burner that produces no spark while its neighbours arc clean points to that position's surface spark electrode - KitchenAid WP8523793 (AP6012852; supersedes 8523793/74007473/8273061; alternate WP9782116 = AP6014195 on some positions). A cracked ceramic insulator, a carbon-fouled tip, or a moisture-soaked electrode either won't arc or leaks the spark to the grate instead of jumping the burner gap. We compare to the adjacent burners: if the others spark and only one is dead, the WP8523793 electrode (not the shared module) is the failed part, and KitchenAid codes these by burner position so we confirm the exact part against the model/serial before ordering.
• One burner that won't even begin to click when its knob is turned to Ignite - while the others spark normally - is the spark ignition switch behind that knob, not the electrode or the module. The switch closes on the gas-valve stem to feed voltage to the spark module; a pitted or burnt contact means that position never signals the module, so there is no click and no spark on that one burner. On the KitchenAid/Whirlpool platform the model-coded spark-switch wire-harness assembly is W10432517 on convection gas ranges (RepairClinic part-replacement guide 4486; W10548356 is the verified gas-range alternate), and W10861397 on KitchenAid gas downdraft tops. We isolate by pulling switch leads one at a time and confirm the model-correct harness by model/serial rather than quoting a bare part that doesn't exist for the unit.
• ALL burners click but NONE spark (or all spark weakly and none light) is the shared surface-burner spark module, the one fault that makes the whole cooktop tick together. On KitchenAid gas ranges this is W10860916 (replaces W10457998); on KitchenAid gas DOWNDRAFT cooktops (KCGD506/KCGD500 family) it is WPW10475150. RepairClinic's diagnostic order is explicit: if a burner produces a weak or intermittent spark, check the spark electrode and spark wire FIRST, and only condemn the module if the electrode and wire are good. Because module failure is the most expensive surface-ignition fault, we condemn W10860916 / WPW10475150 LAST - after the electrodes (WP8523793) and switch harness (W10432517) test good - and confirm the model-coded module by model and serial.
• No spark with the burners ticking even when every knob is OFF - or no spark right after a boil-over or a wet clean - is moisture in the spark switches or under the caps, not a dead electrical part. KitchenAid's ProductHelp says to let the moisture dry and to speed it by removing the knobs and 'blowing cool air from a hair blow dryer onto the knob shaft,' and to dry or clean any moisture in the ports. Water wicks down the knob shaft and bridges a spark switch contact, so the module either fires continuously or can't sustain a clean discharge to any one burner. We dry and re-test first - a $0 dry-out clears a large share of these calls and keeps us from selling a W10432517 switch harness or a W10860916 module the range never needed.
• A burner that sparks fine but the spark jumps to the burner cap or grate instead of the gas gap is a mis-seated or clogged cap, not an ignition-part failure - the electrode never gets a clean path to the gas, so it reads as 'no spark at the flame.' Spillover carbonizes the small ports and a cap rotated off its locating notch after cleaning splits the spark path. KitchenAid's guidance is to clean clogged ports with a straight pin ('Do not enlarge or distort the port,' and never a wooden toothpick that can break off) and confirm the cap is aligned to the Ignite position. We lift, brush, clear, and reseat to the notch before condemning any WP8523793 electrode.
• On KitchenAid gas DOWNDRAFT ranges and cooktops (KSDG950 dual-fuel downdraft slide-in, KCGD500/KCGD506 gas downdraft cooktop) a burner that sparks but the flame won't establish - reading to the owner as 'no spark/no light' - is frequently the downdraft vent pulling the flame off the electrode before it catches, not an ignition fault. Per KitchenAid the fix is to lower the downdraft blower speed or raise the cooktop burner flame setting for that position - a distinct cause a non-downdraft range cannot have, and one we verify before quoting the downdraft-specific WPW10475150 module or W10861397 switch harness.

KitchenAid no spark (igniter failure) in Toronto — the local specifics

• The recurring KitchenAid-in-Toronto no-spark pattern is two-part: a whole-cooktop 'no spark' that is really the Cooktop Lockout latched after a power flicker (a $0 lock-key/breaker reset), and single-burner no-spark where one WP8523793 electrode or one model-correct spark switch (W10432517 harness on convection ranges) has failed while the rest arc clean. The all-burners-click-but-none-spark module job (W10860916, or WPW10475150 on downdraft tops) is the least common of the three - which is exactly why we test electrodes and switches before condemning the module.
• To these calls we bring WP8523793 surface spark electrodes (plus the WP9782116 alternate), a model-correct spark switch harness (W10432517 convection-range, W10548356 alternate, confirmed by model/serial), and a straight pin and cool-air dryer for the port-clean and moisture dry-out that resolve a large share of no-spark visits with no part at all. The shared spark module (W10860916 / WPW10475150 downdraft) is confirmed by model/serial and pulled from the Whirlpool channel only after the electrode and switch test good.

For the full KitchenAid stove module — every fault, part number and code — see KitchenAid stove repair in Toronto, and for the same fault across all brands the stove no spark (igniter failure) guide.