The short answer
On an IKEA oven, an oven that shuts off, locks or refuses a mode is usually a sensor triggering a shutdown rather than a failed relay board. The next thing to rule out is a self-clean lock not released. Work the order below -- cheap causes first, the one that is not an owner fix last.
What you are looking at
- A lock symbol is showing — The door will not open, or the oven will not heat.
- The panel behaves erratically after a power cut — Buttons respond oddly or not at all.
- The oven shuts off part-way through a bake — It cools, then resumes or stays off.
- NEAR MISS -- the oven never heats at all — That belongs on the heating-failure page.
Causes, most likely first on this kind of unit
- The sensor is triggering a shutdown — A sensor reading high makes the control believe the oven is overheating, so it shuts the heat off part-way through a bake. First here, because on an IKEA appliance on its mainstream OEM platform a drifting sensor on this platform produces exactly this stop-start pattern.
- The door lock is part-engaged — A self-clean lock that has not fully released holds the oven out of normal operation. Ranked here because a lock that has not released keeps the oven out of normal modes by design.
- A mode is set that you did not intend — Delay bake, a timed cook, a sabbath mode, a demo mode or a control lock will all stop an oven doing what you expect. Ranked here because an oven obeying a mode you did not choose looks exactly like a fault.
- The relay board or the control itself — A burned relay, a failed lock motor or a control that no longer sequences needs a meter and the service manual. Last, and that is the point of the order: it is the one cause here that is not an owner repair, so it is last.
Check in this order, and why
- Note whether it stops at a temperature or a time — A shutdown always around the same temperature points at the sensor rather than the timer.
- Look for a lock indicator and try the door — Run and cancel a clean cycle, or reset at the breaker, to let the lock motor complete its travel.
- Only after modes, lock and breaker are proven — An oven that ignores every reset with all modes cleared is a service call.
What an owner can safely check
- Cancel every mode and set a plain bake — Clear timed cook, delay bake, sabbath and demo modes, and any control lock.
About 10 min
- Check for a lock indicator and try the door — A part-engaged self-clean lock disables normal operation.
About 5 min
- Reset both poles of the breaker for a minute — This clears a latched control, which is common after any supply event.
About 10 min
- STOP HERE -- the next step needs a meter and the service manual — Relay boards, lock motors and sensors are technician work on a high-current circuit.
Before you open anything
Safety
Switch the oven off at its breaker before any panel comes off; an oven circuit is a large-appliance circuit, typically thirty amps or more at two hundred forty volts.
When to call a technician
Call once the breaker, the door seal, the racks and the way the oven is being used have been ruled out.
Nearest pages of this class
What this page does not cover
This page covers the IKEA oven as a class, not one family or model line. Where a family- or model-specific page exists for your unit it is the more specific answer -- go there first if your model is named. Deliberately not here: mode tables, service-mode entry, board part numbers and the panel-removal order, all of which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
