Error code · Cooktop

Electrolux Knob Cooktop Code Er: A Knob Is Still on

Low risk · DIY check OK

Code: Er
Appliance: Cooktop
Brand: Electrolux
Warranty: 30-day workmanship

What Er means

On Electrolux knob-controlled electric cooktops with the ESEC control, including the ICON E30EC65ESS, E36EC65ESS and E36EC75HSS, a glowing Er appears when power comes on, or returns after an outage, while a surface knob is still set to a heat level. It is a safety check, not a breakdown: the cooktop refuses to heat an element that was left on when power was restored. You will see Er lit and the element stays cold.

Common causes of Er

A surface knob left on during power-up
A knob that does not return fully to the off position
Power restored after an outage with a knob still set

✓ One safe check you can try

1. Look at every surface knob and turn each one fully to OFF. 2. Check that each knob sits all the way at the off mark and is not resting slightly past it. 3. Wait a moment and see whether Er clears. 4. If it stays lit with every knob off, switch the power supply off and then on, and call us if it remains.

! Why to stop there

If Er stays with every knob fully off, a knob switch may be reporting on when it is not, so we test the knob switches one by one.
We check that the knob shafts are not loose or bent, since that can leave a switch partly closed.
We tell you the price in writing before replacing any switch.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Cooktop codes

HEElectrolux Cooktop Code HE: Hot Element Warning Sb / SFElectrolux IQ-Touch Cooktop Codes Sb and SF: Sabbath Mode E 61-E 65Electrolux ICON Induction Cooktop Codes E 61 to E 65: Zone Sensor Too Hot E 71Electrolux ICON Induction Cooktop Code E 71: Generator Timing Lost E 74Electrolux ICON Induction Cooktop Code E 74: Generator Link Error E 76 / E 77Electrolux ICON Induction Cooktop Code E 76 / E 77: Communication or Heat Sink Sensor E - XXElectrolux Wave-Touch Cooktop Code E - XX: Timer Display Error E XX (hybrid)Electrolux Wave-Touch Hybrid Cooktop Code E XX: Zone Lights Plus Timer Digits

ErEr questions

Is Er a real problem?

Usually no. It is the cooktop reminding you a knob was on when power returned. Turning the knobs off normally clears it. Er tells you to look at the knobs, and in most homes the only fix needed is turning the knob that was left a little open.

Why does Er show after a power outage?

The cooktop will not start heating by itself when power returns, so it flags any knob left on. This protects you from a surprise hot element.

What if all knobs are off and Er stays?

Then a knob switch may be sending a false signal. Call us, and we test each switch before replacing anything. This is more common on older cooktops where the knob switches have worn, and we test each knob switch before suggesting a repair.

Book a visit

Still unsure about Er?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 979-9150