Lg Range LRE30451ST001 Doesn't shut off

Replacement sub printed circuit board that restores the appliance's electronic control functions by processing and routing signals between the user interface and other control modules, helping address unresponsive controls and erratic operation. What it does:

• Processes and routes control signals between the user interface and main control modules.
• Replaces a failed sub control board that can cause unresponsive buttons, blank or flickering displays, or intermittent operation.
• Can resolve specific feature failures or error codes tied to the sub board circuitry.
• Provides a direct OEM-design replacement to restore proper electronic control when the original board is faulty.

• Disconnect power to the appliance before accessing electrical components.
• Document or photograph connector locations before removal to ensure correct reassembly.
• Handle the board by the edges and use proper ESD precautions to avoid damage.

This radiant surface element mounts beneath the glass cooktop to heat a surface burner. Replace it when a burner won't heat or heats intermittently to restore normal, consistent cooking performance.

• Generates radiant heat under the glass-ceramic top for a surface burner
• Cycles on and off to help maintain the set temperature
• Typical failure signs: no heat, intermittent heat, or visible damage to the element/terminals
• Used on electric ranges and glass cooktops

• Disconnect power at the breaker and allow the cooktop to cool fully before service
• Lift/hinge the glass top and support it to avoid stress or cracks
• Note wire positions; transfer any mounting clips/brackets from the old element to the new
• Ensure the element sits level under the glass and all connections are secure before reassembly

This radiant surface element sits beneath the glass cooktop and provides heat to a single burner on an electric range. Replacing a failed element restores fast, even heating and reliable temperature control on that cooking zone. What it does:

• Generates radiant heat under the glass for one surface burner
• Works with the control to cycle and maintain the selected temperature
• Common symptoms: burner won't heat, heats slowly or unevenly, or only part of the ring glows
• Visible breaks or damage to the element under the glass

• 1 radiant surface element

• Disconnect power at the breaker before servicing
• Allow the cooktop to cool completely and protect the glass surface
• Lift/remove the glass top to access the element; transfer any brackets/retainers from the old unit if required
• Move wires one at a time to matching terminals and center the element under the burner graphic before reassembly

The PCB Assembly is an OEM component for LG ranges. It is the circuit board responsible for controlling critical range functions such as the oven, cooking elements, and display. 

Symptoms of a bad PCB assembly can include: 

• Range elements not working properly 
• Display malfunctions or failures 
• Improper functioning of oven features like bake, broil, and convection modes 

Causes of a bad circuit board tend to be normal wear and tear over time from heavy usage and heat exposure during cooking. Occasional power surges or fluctuations can also potentially cause circuit damage. 

This OEM LG part is also compatible with Sears/Kenmore.