Manual for LMV1831

Brand: LG logo LG

Category: Microwave Oven

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: Nov. 21, 2025, 9:25 p.m.

Warranty Information

This limited warranty covers defects in material or workmanship for 1 Year on Labor and Parts, and 10 Years on the Magnetron.

Basic Microwave Operation

This microwave oven offers a variety of features for convenient cooking. You can set the clock, use the timer, and operate various cooking functions.

Key Functions:

Clock: Set the current time of day.
Timer On/Off: Use as a kitchen timer up to 99 minutes and 99 seconds.
Hold Warm: Keeps food warm for up to 90 minutes.
Soften/Melt: Low power settings for softening butter, ice cream, or melting cheese.
Defrost: Options for defrosting by weight/time or a quick 2-minute defrost.
Sensor Cook/Reheat: Automatically determines cooking time based on food's humidity.
Add 30 Sec: Quickly add cooking time in 30-second increments.
Power Level: Adjust cooking power from 10% to 100%.
Turntable: Can be turned on or off for even cooking.

Always ensure proper container use and follow safety precautions.

Troubleshooting and error codes

TROUBLESHOOTING
BEFORE CALLING FOR SERVICE
If nothing on the oven operates:	check for a blown circuit fuse or a tripped main circuit breaker. check if oven is properly connected to electric circuit in house. check that controls are set properly.
If the oven interior light does not work:	the light bulb is loose or defective.
If the oven will not cook:	check that cooking program was entered correctly. check that door is firmly closed. check that Start button was pressed. check that probe was inserted correctly into receptacle. check that timer wasn't started instead of a cook function.
If oven takes longer than normal to cook or cooks too rapidly:	be sure the Power Level is programmed properly.
If the time of day clock does not always keep correct time:	check that the power cord is fully inserted into the outlet receptacle. be sure the oven is the only appliance on the electrical circuit.
If food cooks unevenly:	be sure food is evenly shaped. be sure food is completely defrosted before cooking. check placement of aluminum foil strips used to prevent overcooking.
If food is undercooked:	check recipe to be sure all directions (amount, time, power levels) were correctly followed. be sure microwave oven is on a separate circuit. be sure food is completely defrosted before cooking.
If food is overcooked:	check recipe to be sure all directions (amount, power level, time, size of dish) were followed.
If arcing (sparks) occur:	be sure microwavable dishes were used. be sure wire twist ties weren't used. be sure oven wasn't operated when empty. make sure metal rack (if used) is properly installed on supports.
If the Display shows a time counting down but the oven is not cooking:	check that door is firmly closed. check that timer wasn't started instead of a cooking function.