LG Range Burner Won't Heat? Here's How to Fix It

LG Range Burner Won't Heat? Here's How to Fix It

OEM Replacement Parts | Canadian Business Since 1996 | Fast Canada-Wide Shipping | Guaranteed Fit

If your LG electric range burner won't heat up, you're not alone — this is one of the most common LG range complaints. The good news: most causes are straightforward to diagnose and repair with the right OEM part. This guide covers the top causes, how to diagnose the problem, and which parts to order.

✓ Burner completely dead ✓ Burner stuck on high ✓ No temperature control ✓ Burner works sometimes ✓ Only one burner affected ✓ All burners not heating
🇨🇦 Canadian Business Since 1996 ⭐ 30 Years of Expertise 🚚 Fast Canada-Wide Shipping ✓ Guaranteed Fit

Top Causes: LG Range Burner Won't Heat

1. Faulty Rotary Switch (Most Common)

The rotary switch controls power delivery to each surface burner. When the internal contacts wear out or the shaft breaks, the burner loses heat control entirely or stops working. This is the #1 cause of a single burner not heating or being stuck on one setting.

Symptoms: One burner dead, stuck on high/low, dial spins freely

→ Shop LG Range Rotary Switch EBF62174907

2. Burned-Out Surface Element

Electric range surface elements (coil or radiant) can burn out over time, especially if subjected to spills or overheating. A burned-out element will show visible damage (cracks, blistering) or fail a continuity test.

Symptoms: Element visibly damaged, no heat, tripped breaker

→ Shop LG Range Surface Elements

3. Faulty Infinite Switch / Surface Element Switch

On some LG range models, an infinite switch (rather than a rotary switch) controls burner heat. A failed infinite switch causes the same symptoms — no heat, stuck on one setting, or erratic temperature.

Symptoms: Burner won't respond to dial, heat level unpredictable

→ Shop LG Range Switches

4. Wiring Harness or Terminal Block Issue

Loose, burned, or corroded wiring connections between the switch and the element can interrupt power delivery. This is more common on older ranges or after a power surge.

Symptoms: Intermittent heating, burning smell, visible wire damage

→ Contact us for wiring harness help

5. Tripped Breaker or Power Supply Issue

If all burners are dead, check your home's electrical panel first. LG electric ranges require a dedicated 240V circuit. A partially tripped breaker can cause some burners to work while others don't.

Symptoms: Multiple or all burners dead, oven may still work

→ Contact our team for diagnosis help

How to Diagnose the Problem

  1. Identify the scope: Is it one burner or all burners? One burner = switch or element. All burners = power supply or control board.
  2. Inspect the element: Look for visible cracks, blistering, or burn marks. A damaged element needs replacement.
  3. Test the switch: Disconnect power. Remove the control knob and access the switch. Use a multimeter to test continuity at each position — a good switch changes continuity as you rotate it.
  4. Check wiring connections: Inspect terminals at the switch and element for corrosion or burn marks.
  5. Check the breaker: Reset the breaker and test. If it trips again, call an electrician.

Frequently Asked Questions

Which part do I need if only one LG burner won't heat?

Start with the rotary switch for that burner — it's the most common cause. If the switch tests fine, inspect the surface element for damage. The EBF62174907 rotary switch fits many LG electric range models.

Can I fix an LG range burner myself?

Yes — replacing a rotary switch or surface element is a DIY-friendly repair. Always disconnect power at the breaker first. If you're unsure, consult a qualified appliance technician.

How long does it take to replace an LG range rotary switch?

Most rotary switch replacements take 30–60 minutes with basic tools. You'll need a Phillips screwdriver and possibly a nut driver to access the control panel.

Do you ship LG range parts across Canada?

Yes — XPart Supply ships OEM and aftermarket LG range parts Canada-wide with fast shipping. We've been serving Canadian customers since 1996.

What if my LG range model isn't listed?

Contact our team — we can look up compatibility by model number and help you find the right part. Reach out here.