Ikea Supply Voltage Too Low

Induction cooktop displays E4 and will not start

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Undersized wiring, Long cable run causing voltage drop, Loose connections, Low mains voltage

Safety first: Work on mains wiring must be done by a qualified person.

Check connections: Inspect and tighten all terminal screws at the cooktop and junction box.
Measure voltage under load: Have an electrician measure voltage while the cooktop is operating; if it drops below specification, wiring or supply must be upgraded.
Utility check: Contact your power provider if house voltage is consistently low.

Professional Required 5/5