QualifiedHigh risk

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.

Safety first

Ovens are often on a dedicated high-current circuit. Isolate, prove dead, and allow elements to cool. A failed element can also leak to earth.

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.

Apprentice mode

Full walk-through — the why, what readings mean, mistakes & safety.

Likely causes

Ranked from most to least likely.

  1. 1

    Failed bake/grill element

    Most likely

    The element has gone open circuit (sometimes visibly blistered/broken) and no longer heats.

  2. 2

    Faulty oven thermostat

    #2

    The thermostat isn't calling for heat or has failed.

  3. 3

    Function/selector or control fault

    #3

    The function selector or control board isn't enabling the heating element.

  4. 4

    Supply to the oven lost

    Least likely

    A tripped circuit or lost supply (less likely if the clock/light work).

Reports are saved on this device to reflect what you actually find.

Testing sequence

Work through one test at a time. Expected reading and what each result means.

On the tools? Job Mode shows one test at a time with thumb-sized buttons — your place and readings carry straight over.

Enter Job Mode
Test 1 of 2
1

Confirm the oven has power (clock/light) and the correct function/temperature is selected.

Expected reading

Powered; a heating function and temperature selected.

If it passes

Powered and set — test the element and thermostat.

If it fails

No power → check supply. Wrong function → select a heating mode.

Mark this test
View all expected readings at once
1. Confirm the oven has power (clock/light) and the correct function/temperature is selected.
Powered; a heating function and temperature selected.
2. Isolate and test the element (resistance/insulation) and check the thermostat operation.
Sensible element resistance; thermostat calling.

Fault-finding flowchart

The same logic as a decision tree.

  1. 1
    start

    Oven not heating

    → step 2
  2. 2
    decision

    Is the oven powered and set to a heating function?

    Yes→ step 3No→ step 4
  3. 3
    decision

    Do the element and thermostat test healthy?

    Yes→ step 5No→ step 6
  4. 4
    result

    No power → check supply; wrong function → select heating mode.

  5. 5
    result

    Suspect the selector/control board.

  6. 6
    result

    Open element or faulty thermostat — replace the faulty part.

Common mistakes apprentices make

  • Assuming supply when the clock/light prove the oven is powered.
  • Not selecting an actual heating function/temperature.
  • Replacing the thermostat when the element is open.
  • Ignoring an element that's leaking to earth.

When to stop & escalate

Appliance and oven-circuit work is licensed electrical work; many ovens need manufacturer parts/service. A failed element leaking to earth must be replaced.

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.

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Learn the theory

How the gear and circuits behind this fault actually work.