A no-heat oven can be missing supply, a failed element, sensor or control command.
Start Here
Confirm both supply legs where applicable via safe external checks.
Inspect element visually when cool.
Check settings and timed modes.
Test element resistance unplugged if safe access is documented.
Compare bake and broil behavior.
A useful diagnosis turns a vague complaint into a smaller technical question. A no-heat oven can be missing supply, a failed element, sensor or control command. For electric oven will not heat, concentrate on temperature sensing, heating and safety controls. Use every working function as evidence: if one stage still behaves normally, that fact eliminates causes that would have stopped the appliance earlier in the sequence.
Observe the timing before touching anything. Note what happens immediately after Start, what changes just before the fault, and what remains normal afterward. Lights, relay clicks, water movement, motor or fan sounds, heat, vibration and error codes are useful only when tied to a point in the cycle. A fault that appears instantly is a different problem from one that appears only after the machine warms up or reaches a later stage.
Begin with the cheapest conditions to verify: confirm both supply legs where applicable via safe external checks, then inspect element visually when cool. Do not merely glance at them. Compare the actual condition with the manual, correct anything obviously wrong, and retest before moving deeper. Simple installation, maintenance and user-setting problems regularly imitate failed electrical parts.
If those checks pass, move to check settings and timed modes. Then decide whether test element resistance unplugged if safe access is documented can be evaluated safely with power isolated. Choose one test that answers one question: blocked or clear, open or closed, free or jammed, intact or electrically open. If a test result would not change your next decision, the test is probably not worth doing.
Avoid live probing behind the range without training, touching elements before cooling, and replacing the control before checking the element. All three skip evidence and can turn a minor fault into an expensive one. After a correction, reassemble guards and connectors, restore normal settings, and reproduce the original operating conditions. A single successful start is not proof; the original symptom must stay gone through the stage that used to fail.
A Safe Step-by-Step Check
Document the exact symptom and pay special attention to confirm both supply legs where applicable via safe external checks.
Remove external causes first; specifically verify inspect element visually when cool.
With power isolated where required, inspect check settings and timed modes and then evaluate test element resistance unplugged if safe access is documented only if it can be done safely.
Reassemble fully and run a controlled test under the conditions that previously caused the fault.
Common Beginner Mistakes
Live probing behind the range without training.
Touching elements before cooling.
Replacing the control before checking the element.
STOP AND GET HELP: If the next useful test requires exposed live mains, defeating a safety interlock, opening a sealed refrigeration circuit, disturbing gas controls, or entering a microwave high-voltage section, the diagnosis has reached the professional-service boundary.