
Cooktop display control board

Cooktop display control board
LG range control boards (also called ERC boards or clock/timer assemblies) manage every heating cycle, temperature regulation, and safety interlock in your oven. When your LG range displays error codes, won't respond to button presses, or ignores temperature settings, the control board is often the culprit. Unlike aftermarket boards, OEM LG boards come pre-programmed for your exact model — no setup needed, just install and cook.
Common symptoms that point to a failed LG range control board: F-codes flashing on the display, touchpad completely unresponsive, oven heating to wrong temperature, or burners not igniting when you turn the knob. Many of these issues can look like sensor problems or igniter failures, but once you've ruled out the obvious, the control board is the right next check.
Start simple: check that power is reaching the range (outlet, breaker, clock display). If the display is dark or unresponsive after power is confirmed, check the 24V transformer for continuity — many "dead board" complaints are actually a failed transformer. If the transformer is good and the board still won't respond, or if it responds intermittently, the control board itself has failed. Error codes that repeat or won't clear even after a power reset also point to the board. Use your model number on Repair Clinic to confirm you have the exact OEM board for your range.
Not reliably. LG control boards are model-specific and come with firmware programmed for your exact range configuration — burner types, oven type, sensor inputs, safety interlocks. An aftermarket board may fit physically but won't communicate properly with your sensors or ignition system, or it may not recognize your thermistor output. OEM LG boards eliminate that guesswork. Aftermarket boards are also more likely to have software conflicts that cause F-codes or erratic heating.
The model number is on a label inside the oven (look on the side wall or back wall) or on the back of the range. It usually starts with "LR" or "LRMVS" or "LRGL" followed by numbers. Write down the full model number — don't abbreviate it. Enter that number into the Repair Clinic model lookup, and we'll show you the exact control board, transformer, and related parts that fit your range. Different LG ranges (gas vs. Electric, standard vs. Convection) use different boards.
Installation difficulty depends on your range design. Most OEM LG control boards mount behind the control panel and connect with a single harness plug — a DIY-friendly 15-minute job once you remove the panel screws. Some models require disconnecting a second harness for the oven sensor. Never work on a live range: kill power at the breaker and unplug if possible. If you're not confident with electrical connections, hire a technician — a failed connection can be a safety hazard. Repair Clinic sells the board with a parts diagram; follow it carefully.


Keep your LG range running efficiently by replacing a faulty circuit board timer promptly. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. If your LG range circuit board timer is failing — showing symptoms like reduced performance, unusual noise, or complete non-operation — replacement is typically the fastest fix. Browse our full library of LG repair resources for troubleshooting guides and installation videos.
On LG range/stove/ovens, look for the model number on a label inside the oven, usually along a side or back wall, or on the back of the appliance. You may also find it along the oven door frame or behind the storage drawer. Copy the complete number, including any letters, numbers, and suffixes. Type it into our model number lookup and the catalog narrows to parts made for your unit, including circuit boards, timers, heating parts, and other associated range parts. Matching the entire model helps account for differences between gas and electric models, standard and convection designs, and production revisions. It is the quickest way to be sure the part fits before you order.

Repair Clinic's online repair library is where LG Range Stove Oven owners and technicians go to diagnose the problem and complete the fix. Video walkthroughs, symptom articles, part testing tutorials, and exploded-view diagrams cover the most common repairs from start to finish. Model number lookup confirms the exact OEM part before you order.

Glass in oven doors can sometimes break, causing inconvenience and potential safety hazards. In this article, we'll find the reasons behind oven door glass breakage, preventive measures, and steps for repair if it does occur.

Has your gas oven stopped heating up? Repair Clinic has identified the top 6 causes of this common problem that routinely frustrates those of us who are now unable to bake those cookies or broil that roast.

A burned-out bake or broil heating element is the number one cause for your electric oven failing to heat up. So, if your roast isn't sizzling, your bread isn't rising, or your soufflé isn't soufflé-ing, your first oven troubleshooting step should be testing the bake or broil element to determine if it is defective.