Electrolux Range Error Code E37

Error code E37 on an Electrolux range indicates a break or open circuit condition in the heat sink temperature sensor associated with the left cooking zones. The heat sink sensor is a thermistor-based component mounted directly to the power electronics heat sink on the generator board for the left side induction or radiant cooking zones. Its job is to monitor thermal conditions of the switching components and protect them from overheating. When the control detects a broken circuit or implausibly high resistance reading from this sensor, it triggers E37 and disables the affected cooking zones to prevent damage.

The generator board for the left cooking zones contains the power electronics that drive the heating elements or induction coils, along with an integrated or attached thermistor for heat sink monitoring. A break in this sensor circuit can originate from a failed thermistor, a cracked solder joint on the board, a damaged sensor lead, or a connector that has worked loose due to heat cycling over time. In many cases, the sensor is not a separately replaceable component but is integrated into or closely coupled with the generator board assembly itself.

Because the first diagnostic step points directly to replacing the left side cooking zones generator board, the sensor and its wiring are typically not serviceable as individual components in the field. Technicians should inspect the wire harness and connectors between the control board and the generator board for visible damage or corrosion before committing to a full board replacement. If the harness and connectors check out, the generator board itself is the primary suspect and should be replaced to resolve the fault.