Error code · Range

Electrolux Induction Range Codes 37 and 77: Heat Sink Sensor Open

Medium · inspection needed

Code: 37 / 77
Appliance: Range
Brand: Electrolux
Warranty: 30-day workmanship

What 37 / 77 means

Codes 37 and 77 on Electrolux Wave-Touch induction built-in slide-in ranges, such as the EW30IS65JS and EW30IS6CJS, mean the temperature sensor on the heat sink has an open circuit, 37 on the left side and 77 on the right. The heat sink keeps the induction electronics from overheating, and the control must read its temperature at all times. Without that reading, it shuts down the affected zones for protection and shows the code.

Common causes of 37 / 77

Heat sink temperature sensor
Sensor wiring and connector
Induction housing assembly or control board

✓ One safe check you can try

1. Switch off the range's breaker, wait half a minute and switch it back on. 2. Make sure the vents at the front of the range are not blocked. 3. Note which side shows the code. 4. If 37 or 77 comes back, stop using that side and call us.

! Why to stop there

An open sensor circuit means the control cannot read the temperature, but it does not tell us whether the sensor, its wire or the board is the cause, so we test the sensor first.
We also check airflow around the range.
The written quote comes before any sensor or board is ordered, and our work is covered for 30 days.

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.

→Same appliance

Other Range codes

SAb / SbWhat SAb and Sb Mean on an Electrolux Range SFSF After a Power Outage in Sabbath Mode on an Electrolux Range F30Electrolux Range Code F30: Open Oven Temperature Probe F31Electrolux Range Code F31: Shorted Oven Temperature Probe F40 / F41Electrolux Range Codes F40 and F41: Cooktop Lockout F90Electrolux Range F90 Code: The Door Lock Motor Needs a Look F91Electrolux Range Shows F91 and the Door Will Not Lock Right F92F92 on an Electrolux Range: Door Lock Circuit Reading

37 / 7737 / 77 questions

What does an open sensor mean?

The control cannot see any reading from the temperature sensor on the heat sink. It treats that as unsafe and stops that side of the cooktop.

Is overheating the reason?

Not necessarily. The code is about the sensor circuit being open, which may be a wire or a connector. We still check airflow, because heat also matters.

Can I use the cooktop anyway?

No. The control shut it down because it cannot watch the heat sink, and we do not suggest running the electronics without that protection. We test the sensor and explain what we find before any repair begins.

Book a visit

Still seeing 37 / 77?

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

(713) 979-9150