Grill element failure

This step-by-step repair guide walks you through fixing grill element failure on your LG LWS3063ST (Wall Oven). With the right tools and parts, most homeowners can complete this repair in 1–2 hours and avoid a costly service call.

Part of our Top 20 Oven Models & Common Repair Issues Guide. Browse all oven repair guides for related models and issues.

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Common Symptoms & Causes

The following symptoms suggest your LG LWS3063ST is experiencing grill element failure and needs attention.

The broil function produces no heat despite the oven appearing to power on normally
The grill element shows visible burn marks, blistering, or a broken section along its surface
Food placed under the broiler remains completely uncooked or unevenly browned
The oven displays an F3 or F4 error code when the broil setting is selected

These issues are most commonly caused by a burned-out or fractured grill element, typically resulting from normal wear, age-related degradation, or a sudden electrical surge damaging the heating coil.

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Safety First

Unplug the oven from the power outlet before starting any repair — never work on a live appliance.
Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
Take photos with your phone before disconnecting any wiring harnesses or connectors.
Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

Phillips #2 screwdriver
¼” nut driver
Multimeter
Work gloves (heat-rated)
Flashlight

Replacement Parts

Step-by-Step Repair Instructions

Step 1

Before touching any components, disconnect power to the oven at the circuit breaker to eliminate shock risk. Set your multimeter to Rx1 and probe both spade connectors on the broil element, which sits along the top of the oven cavity. A working element reads near zero ohms; an open (infinite) reading confirms the element has burned through and must be replaced.

Step 2

Using needle-nose pliers, pull the two spade connectors off the broil element terminals — note their positions so reconnection is straightforward. Remove the two quarter-inch hex mounting screws securing the element to the back wall, then slide the element forward through the oven cavity to free it. Take care not to let the element drop, as the back-wall opening is just large enough to maneuver it out without forcing it.

Step 3

Before handling the old element, put on work gloves — a failed broil element often burns through cleanly but leaves razor-sharp metal edges at the break point that can cause deep cuts. Inspect the removed element for visible burn holes or arc marks, which confirm the electrical failure you measured and rule out a wiring or control-board issue upstream.

Step 4

Feed the new element through the oven back wall so the terminal studs protrude into the connection area, then drive the two quarter-inch hex mounting screws snug — overtightening can crack the ceramic element supports. Press the spade connectors firmly onto their terminals until they seat fully; a loose spade connector will arc under load and can damage the new element or wiring within a few uses.

Step 5

Restore power at the breaker and set the oven to Broil at 500°F for ten minutes, watching the element through the oven window. A properly functioning element will glow uniformly red across its full length within two to three minutes; any dark spots or areas that fail to glow indicate a defect in the new element or an incomplete spade connection that should be addressed before regular use.

Where to Buy Replacement Parts

Find genuine OEM and aftermarket replacement parts for your LG LWS3063ST (Wall Oven) on Amazon:

When to Call a Professional

If the issue persists after completing all steps above, the problem may involve the sealed refrigerant system, a failed main control board, or wiring that requires specialized diagnostic equipment. Contact a licensed appliance technician — attempting sealed-system repairs without EPA 608 certification is illegal and unsafe.

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How Much Does This Repair Cost?

Replacing a grill element on the LG LWS3063ST typically costs $30–$80 for the part when doing it yourself. A professional service call for the same repair usually runs $150–$300, including labor and parts. Tackling this repair DIY-style can save you $100–$220, making it a worthwhile fix for most homeowners.

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Frequently Asked Questions

How do I know if the grill element on my LG LWS3063ST has failed?

A failed grill element typically shows visible burn marks, breaks, or blistering on the element itself. You may also notice the broiler produces no heat or heats unevenly during cooking.

Is it safe to replace the grill element myself on the LG LWS3063ST?

Yes, with the oven unplugged and power disconnected at the breaker, replacing the element is a manageable DIY repair. Always confirm power is fully off before touching any internal components.

What replacement part do I need for the LG LWS3063ST grill element?

Order a broil element specifically compatible with the LG LWS3063ST using your model number to verify the correct part. LG-authorized parts suppliers or appliance parts retailers are reliable sources.

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