Lg Oven: display not functioning

Professional Repair Guide

What is this symptom?

If your LG oven powers on but the display is blank or unresponsive, it may indicate issues with the control/display board or main control board. This can hinder your oven’s functionality and may require immediate attention to restore normal operation.

Urgency: Medium

Important Tips for Lg Models

  • LG official support suggests unlocking any control lock/child lock, but for display blank issues the company generally points toward service if simple resets don’t work.

Possible Causes

Control/display board failure

How to Identify: Entire display stays dark or blank even when oven has power and connected; no lights or digits visible.

Part: Display board (LED/LCD panel)

Main control board failure

How to Identify: Display receives no power even when oven is plugged in; nothing lights up and resets do not help, pointing to upstream control board issues.

Part: Main control board

Loose or damaged wiring/connection

How to Identify: Intermittent display behavior or flickering, or display fails after jostling the unit; visible loose connectors behind panel.

Part: Wiring harness/connectors to display/control board

Power supply/circuit issues

How to Identify: Oven appears completely dead (no lights, no display, outlet may have no power or breaker tripped.

Part: Power supply/circuit breaker or internal supply board

Touchpad/control panel surface issue

How to Identify: Buttons not responsive, but in some cases portions of display may show dim or incomplete output.

Part: Touchpad/surface panel

DIY Solutions

Power reset and basic checks

Easy 5-10 minutes
  1. Turn off oven power via breaker or unplug for several minutes to reset internal electronics.
  2. Ensure outlet has power by testing another device at the same outlet.
  3. Plug oven back in and turn on to see if display returns.
⚠️ Safety First: Ensure power is completely off before touching any parts.

Inspect external power and breaker

Easy 5 minutes
Tools Needed: None
  1. Check house circuit breaker panel for tripped oven breaker and reset if needed.
  2. Confirm the oven’s power cord is securely plugged into the outlet.
  3. If outlet has a switched off wall outlet, ensure it’s on.
⚠️ Safety First: If circuit repeatedly trips, avoid resetting repeatedly and consult a professional.

Professional Repairs

Replace display board

Estimated Cost: $80 - $300

Replace main control board

Estimated Cost: $150 - $450

Repair/secure internal wiring harness

Estimated Cost: $50 - $200

When to Call a Professional

After performing basic power checks and reset, the display remains completely unresponsive.
If signs of internal wiring damage, burn marks, smell of burning, or sparking are present.
Replacing control or main boards which involves opening and servicing internal electronics.

Preventive Maintenance

  • Perform occasional power resets: Clears minor software glitches that may affect display responsiveness.
    Frequency: annually
  • Keep control panel clean and dry: Touchpad and interface issues due to dirt and moisture.
    Frequency: monthly cleaning with dry cloth

Frequently Asked Questions

Why is my LG Oven display not functioning?
Common causes include control/display board failure, main control board issues, or loose wiring connections.
How do I fix LG Oven display not functioning myself?
Try a power reset by unplugging the oven, check the circuit breaker, and ensure the power cord is securely connected.
How much does it cost to fix display not functioning?
Professional repair costs range from $50 to $450, depending on whether the display or main control board needs replacement.
When should I call a technician for display not functioning?
If DIY solutions don’t resolve the issue or if complex repairs are required, it's best to contact a technician.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

65%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Power supply issue (tripped circuit breaker or blown fuse)
  • Faulty control board or display module
  • Loose or damaged wiring connections

User Suggested Solutions

  1. Check the power supply by ensuring the circuit breaker is not tripped. If it is, reset it. If the oven still does not power on, check for blown fuses. Replace any blown fuses as necessary.

  2. Inspect the control board and display module for any visible damage or burnt components. If damaged, replace the control board or display module. Make sure to disconnect the power before attempting this.

  3. Check all wiring connections to the control board and display module. Tighten any loose connections or replace damaged wires. Ensure the power is off before performing this check.

Analysis based on 1 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Broken LG Stove Display

Community Discussions

display has become unreadable

Locate the model number on the stove to order a replacement display; it's generally an easy job.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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