Induction cooktop showing a fault or not heating
An induction cooktop won't heat, shows an error code, or doesn't recognise pans — different from a radiant element fault because it's electronic and pan-dependent.
Safety first
Isolate before working. Induction cooktops are electronic appliances on a dedicated circuit — coded faults usually need qualified service.
Isolate, lock out / tag out, and prove dead before working unless a live test is specifically required, authorised, and carried out under proper supervision. Always follow local regulations, your site procedures, and the equipment manufacturer's documentation.
Full detail — causes, the why, and common mistakes.
Likely causes
Ranked from most to least likely.
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Testing sequence
Work through one test at a time. Expected reading and what each result means.
Full test sequence
The step-by-step test flow with expected readings for this fault is part of Sparkie Sidekick Pro.
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Fault-finding flowchart
The same logic as a decision tree.
- 1start
Induction fault
→ step 2 - 2decision
Does it heat with known-suitable induction cookware?
Yes→ step 3No→ step 4 - 3result
It was the cookware — done.
- 4decision
Is supply present and ventilation clear?
Yes→ step 5No→ step 6 - 5result
Internal fault — qualified service per the error code.
- 6result
Restore supply / clear ventilation and re-test.
Common mistakes apprentices make
- Using non-magnetic cookware and thinking the cooktop is faulty.
- Ignoring the displayed error code.
- Overlooking blocked ventilation causing overheat shutdowns.
- Opening the electronics instead of using qualified service.
When to stop & escalate
Coded/internal induction faults need qualified appliance service and manufacturer documentation. Supply/circuit work is licensed electrical.
If you're past your competence, authorisation, or the safe limits of the job — stop and hand it on. There's no fault worth getting hurt over.
Related faults
Cooktop element (radiant/coil) not working
One element/zone on an electric (radiant or coil) cooktop isn't heating while others work — pointing at that element, its switch/control, or connection.
Electric oven not heating
The oven powers up (light/clock may work) but doesn't get hot — pointing at the element, thermostat, or the oven's controls rather than the supply.
An appliance trips the power the moment it's plugged in or switched on
Plugging in or switching on a particular appliance instantly trips the safety switch or breaker — strongly suggesting an earth fault or short in that appliance.