LG Range Surface Burner Stuck on High or Won't Heat? Infinite Switch EBF62174901 – Fix Burner Temperature Control Fast

An LG electric range surface burner that won't turn off, stays stuck on high heat, heats at only one level, or won't heat at all is almost always a failed infinite switch. In most LG electric ranges, the infinite switch (also called a rotary switch or burner control switch) is the component behind the control knob that regulates how much power reaches the surface heating element — cycling it on and off rapidly to maintain the selected heat level. When it fails internally — through contact wear, arc damage, or thermal fatigue — the burner loses the ability to modulate heat, resulting in a burner that runs at full power continuously, won’t heat at all, or only works at certain settings. ⚡ Common failure point in LG LDE, LSE, LRE, LTE, and LSSE series electric ranges. Part EBF62174901 is the genuine OEM LG infinite switch that restores full, precise burner temperature control across all heat settings — directly superseding EBF62174906.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Range powers on and other burners and oven functions work normally
• ✔ The surface heating element itself tests good (continuity confirmed)
• ✔ The control knob is intact — not cracked or stripped at the shaft
• ✔ ONLY problem is one burner stuck on high, won’t heat, or won’t respond to knob position changes

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Surface burner stays on full heat regardless of knob position — won’t turn down
• Burner won’t heat at all even though the element tests good
• Burner only works at one heat level — no variation between low, medium, and high
• Burner cycles on and off erratically — heat output is unpredictable
• Burning smell or visible scorching around the switch area behind the control panel
• Control knob turns freely but has no effect on burner output

✔ If these symptoms match, the infinite switch is the most likely failed component.

✔ In most cases, replacing this switch restores full, precise burner temperature control immediately.

📦 Part Details

• Part Number: EBF62174901
• Type: Surface Burner Infinite Switch (Rotary Burner Control Switch)
• Replaces / Supersedes: EBF62174906
• Brands: LG
• Status: ⚠️ Discontinued / No Longer Available (NLA) — stock while supplies last

⚙️ Installation

Skill Level: MODERATE — 20–40 minutes. Disconnect power at the breaker before servicing. The infinite switch is located behind the control panel — remove the rear control panel screws or the front panel depending on your model to access the switch bank. Photograph all wiring terminal positions before disconnecting, remove the mounting screws securing the old switch, swap in the new EBF62174901, reconnect all wires in the original positions, reassemble the panel, restore power, and test all heat settings on the repaired burner to confirm full temperature range is restored.

✓ Compatible Models

Confirmed compatible with LDE4411ST, LDE4413BD, LDE4415ST, LRE4211ST, LRE4215ST, LSE4611ST, LSE4613ST, LSE4615ST, LSE4616ST, LSSE3027ST, LSSE3030BD, LTE4815ST, LTEL7337D, UPSE3024ST plus additional LG electric range models. Contact us to verify your model number before ordering.

💡 Pro Tip