10025386 Genuine Energy Regulator for Bosch, Siemens, Neff Cooktops, BSH Hotplate Simmerstat Control

Part 10025386 is a genuine BSH energy regulator, the control that sets the heat level of a hotplate or radiant zone. It comes from the parts range behind Bosch, Siemens and Neff cooktops. Regulators differ in rating, shaft and terminal layout, so match 10025386 against the number on your old regulator or the parts list for your model. Hard-wired cooktops should be repaired by a licensed electrician.

Cooktop hotplate stuck on high or not heating?

An energy regulator, often called a simmerstat, controls a radiant or solid hotplate by switching it on and off in cycles. The higher the setting, the longer the on time in each cycle. When the contacts weld or wear, the plate may run flat out on every setting, refuse to heat, heat only on high or cycle erratically. Burnt terminals and a burning smell from under the cooktop are other signs. Check the element itself for continuity too, as a failed element also leaves a cold plate.

Part details

• Genuine BSH part 10025386
• Energy regulator (simmerstat) for a cooktop heating zone
• Part of the BSH range for Bosch, Siemens and Neff cooktops

Replacing the energy regulator

Isolate the cooktop at the circuit breaker before any work, and have a licensed electrician carry out the job if it is hard-wired, as most cooktops are. Photograph the wiring on the old regulator and label each wire. Transfer them one at a time to the matching terminals on the new one, secure it in place and refit the knob. Test each setting once power is restored.

Questions about this part

Do I need to replace the element as well?

Not always. If the regulator has failed, the element may still be fine. A licensed electrician or technician can test the element for continuity before you order, so you only replace what has actually failed.