LG LRE30453ST/02 electric range Parts

To reset your LG LRE30453ST electric range, we recommend doing a full power reset: turn the range breaker OFF for 5 minutes, then turn it back ON and reset the clock. This clears many control glitches and restores normal operation.

• Turn OFF the range circuit breaker (or unplug the cord if accessible).
• Wait 5 minutes (this lets the control boards fully discharge).
• Turn the breaker ON (or plug back in).
• Set the clock and test Bake and a surface element.
• If the display is blank or the oven still will not heat, move to the checks below.

A reset helps when the issue is a temporary control lockup. If a heating problem remains, the cause is usually a failed heating circuit component.

• Oven will not heat: check the bake circuit; a failed range bake element MEE36593202 is a common cause.
• Broil will not heat: the broil circuit may be at fault; the range broil element MEE36592904 is the primary heater for broil.
• Surface element not heating: a radiant element can fail; match the size such as range radiant surface element, 6-in 5300W1R004A.
• Intermittent heating or no heat with normal display: a relay or control issue is likely; the range oven relay control board 6871W1N012B is the switching board that sends power to the elements.
• Overheat or safety shutdown symptoms: a safety device can open; the range safety thermostat 6930W1A003X helps protect the range from overheating.

A proper reset rules out a simple control glitch. If the range still will not heat, focusing on the correct heating circuit (bake, broil, or surface) helps you avoid replacing the wrong part and gets your LG electric range back to safe, consistent temperatures.

For model-specific operating details (including clock setting and control features), use the LRE30453ST owner's manual.

Last updated: February 2026

If your LG LRE30453ST electric range oven is not heating, the most common causes are a failed bake element, a control problem (relay/control board), or an over-temperature safety device opening and cutting power to the heating circuit. Use the LRE30453ST owner's manual to confirm the correct bake and broil settings and any error-code guidance.

• Make sure the oven is in Bake (not Timer, Warm, or Delay Start).
• Verify the oven temperature is set above room temperature (for example, 350°F).
• Check for a tripped breaker; many electric ranges use a double-pole breaker.
• If the display is on but heat never starts, listen for a relay click when you press Start.
• If the oven heats sometimes, note whether it fails more during long preheats or self-clean.

These are common fixes when an electric oven will not heat at all or heats very weakly:

When the oven does not heat, the issue is usually in the heating circuit (bake element, wiring, thermostat) or the electronic control that switches power to the element. Fixing the correct part restores normal preheat time, stable temperature, and safe operation.

• Turn off power at the breaker before removing panels or testing continuity.
• If you smell burning insulation or see melted wiring, stop and correct the wiring issue before installing new parts.

For step-by-step troubleshooting, we also recommend oven wont heat troubleshooting electric range problems video.

Last updated: February 2026

For the LG LRE30453ST electric range, the control board part price is typically $164 to $336, depending on which board your range uses. Labor is separate; most service calls add about $150 to $350+, so total replacement cost commonly lands in the $300 to $700+ range.

This model can use more than one “board,” and the price changes a lot depending on which one failed.

• Oven relay control board: switches power to heating circuits
• Oven control board: the main electronic control for oven functions
• Control panel and overlay: the user interface (buttons/labeling), not always the failed part
• Wiring/connectors: loose or heat-damaged connections can mimic a bad board
• Overheat protection: a tripped safety device can stop heating even with a good board

• Check whether the display is working normally (helps separate UI issues from relay/heating issues).
• If the oven will not heat, verify the range has proper power (a tripped breaker can leave you with partial voltage).
• Look for obvious heat damage at wire terminals behind the control area.
• Use the wiring diagram and diagnostics in the LRE30453ST owner's manual to match symptoms to the correct board.
• If the oven won’t heat but the display works, follow the steps in oven wont heat troubleshooting electric range problems video before ordering a board.

Replacing the wrong “control board” is the most common reason a repair gets expensive. On LRE30453ST, the relay board and the main control board do different jobs, and their prices are far apart.

Last updated: February 2026