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.
Full detail — causes, the why, and common mistakes.
Likely causes
Ranked from most to least likely.
- 1
Failed bake/grill element
Most likelyThe element has gone open circuit (sometimes visibly blistered/broken) and no longer heats.
- 2
Faulty oven thermostat
#2The thermostat isn't calling for heat or has failed.
- 3
Function/selector or control fault
#3The function selector or control board isn't enabling the heating element.
- 4
Supply to the oven lost
Least likelyA 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.
Confirm the oven has power (clock/light) and the correct function/temperature is selected.
Powered; a heating function and temperature selected.
Powered and set — test the element and thermostat.
No power → check supply. Wrong function → select a heating mode.
View all expected readings at once
Fault-finding flowchart
The same logic as a decision tree.
- 1start
Oven not heating
→ step 2 - 2decision
Is the oven powered and set to a heating function?
Yes→ step 3No→ step 4 - 3decision
Do the element and thermostat test healthy?
Yes→ step 5No→ step 6 - 4result
No power → check supply; wrong function → select heating mode.
- 5result
Suspect the selector/control board.
- 6result
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.
Related faults
Oven trips the power when switched on or heating
Turning the oven on (or selecting heat/grill) trips the safety switch or breaker — usually an element that's failed to earth.
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.
No hot water (electric storage system)
An electric storage hot water system has gone cold — no hot water at the taps. Usually the element, thermostat, supply, or (for off-peak) the tariff/timing.
Learn the theory
How the gear and circuits behind this fault actually work.