The EBF62174908 Range Surface Burner Infinite Switch is the complete fix for an LG electric range or cooktop burner that won't heat, won't turn off, only works on high, has no temperature control, heats intermittently, or has a burner indicator light that doesn't work. The infinite switch (also called a surface burner switch, rotary switch, or simmerstat) sits behind the control knob and regulates heat to the burner element by cycling power on and off at varying intervals — the higher the knob setting, the longer the element stays on between cycles.

✓ Model-Specific Repair Pages

Don't see your model? Contact us — this switch fits a range of LG and Kenmore Elite electric ranges and cooktops.

When the infinite switch fails — due to worn contacts, a broken bimetal mechanism, burned terminals, or internal component failure — the burner may not heat at all, stay on constantly, only work at full power regardless of knob position, produce inconsistent heat, or the indicator light may not illuminate. If one burner isn't working properly but the element itself tests good, the infinite switch is the likely cause. This genuine OEM LG part directly replaces EBF62174905, EBF62174903, PER001-11LGS, and 20041113.

✓ Common Symptoms Fixed

Burner won't heat · Burner won't turn off · Burner only works on high · No temperature control · Burner heats intermittently · Burner indicator light not working · Burner stuck at one heat level

✓ Key Features & Specifications

Genuine OEM LG infinite switch assembly · Bimetal cycling mechanism for precise heat regulation · Replaces EBF62174905, EBF62174903, PER001-11LGS, 20041113 · Fits LG and Kenmore Elite electric ranges and cooktops · Part Number: EBF62174908 · Weight: 10 lbs

✓ Buying Options

OEM (New): Genuine LG EBF62174908 infinite switch. Factory original part, direct fit, no modifications required. Backorders accepted — we will ship when stock is available.

✓ Replacement Part Numbers

EBF62174908 · EBF62174905 · EBF62174903 · PER001-11LGS · 20041113

✓ Installation Tips

Unplug the range before beginning. Remove the control knob by pulling it straight off the shaft. Access the switch from behind the control panel — remove the panel screws and tilt or remove the panel to expose the switch terminals. Take a photo of the wiring before disconnecting. Transfer wires one at a time to the new switch to avoid mix-ups, secure the switch, and reassemble the panel. Reinstall the knob and restore power. Test all heat settings to confirm proper operation. Total repair time: 30–45 minutes.