Manuals / LG Electronics / Kitchen Appliance / Microwave Oven

LG Electronics LMHM2017SB, LMHM2017W, LSMH207ST manual Troubleshooting, Before Calling For Service

Models: LMHM2017ST LSMH207ST LMHM2017SB LMHM2017W

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TROUBLESHOOTING

BEFORE CALLING FOR SERVICE

Check the following list to be sure a service call is necessary. Reviewing additional information on items to check may prevent an unneeded service call.

PROBLEM	POSSIBLE CAUSES

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 the 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 oven will not cook	• check that control panel was programmed correctly.
	• check that door is firmly closed.
	• check that Start/Enter Pad was touched.
	• check that timer wasn’t started instead of a cook function.

If oven takes longer than normal to cook	• be sure the Power Level is programmed properly.
or cooks too rapidly

If the time of day clock does not always	• check that the power cord is fully inserted into the outlet receptacle.
keep correct time	• 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, and 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 were not used.
	• be sure oven was not operated when empty.
	• make sure metal rack (if used) is properly installed on 4 supports.

If the display shows a time counting	• check that door is firmly closed.
down but the oven is not cooking	• check that timer was not started instead of a cooking function.

Vent fan starts automatically	• If the temperature gets too hot around the microwave oven, the fan in the
	vent hood will automatically turn on at the LEVEL 4 setting to cool the
	oven. It may stay on up to an hour to cool the oven.

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LG Electronics LMHM2017SB, LMHM2017W, LSMH207ST, LMHM2017ST manual Troubleshooting, Before Calling For Service

Contents

LMHM2017SB LMHM2017SW LMHM2017ST LSMH207ST http//us.lgservice.comMICROWAVE OVEN Thank you for purchasing a LG microwave oven PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGYTABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS To avoid improperly cooking some foods SAVE THESE INSTRUCTIONSDo not heat small-necked containers, such as syrup bottles Do not deep-fat fry in your microwave ovenLOCATION OF MODEL NUMBER OVEN SPECIFICATIONSELECTRICAL REQUIREMENTS GROUNDING INSTRUCTIONS4. Vent Grille 2. Model and Serial Number Plate & Cooking Guide Label6. Cooktop/Countertop Light 9. Grease Filter 10. Slide-Out Hoodsection CONTROL PANEL FEATURESNOTE Styling and features vary by model CLOCK LEARN ABOUT YOUR MICROWAVE OVENVENT AUTO TIME SET VENT FANEZ-ON KIDS MEALWARMING SettingMICROWAVE POWER LEVELS COOKING AT HIGH POWER LEVELSCUSTOM SET MORE/LESSMICROWAVE OUTPUT COOKING GUIDE FOR LOWER POWER LEVELSPOWER LEVEL SENSOR OPERATING INSTRUCTIONS TURNTABLE ON/OFFSENSOR COOKING GUIDE SENSOR POPCORNSENSOR REHEAT SENSOR COOKVEGETABLE SENSOR COOK TABLESENSOR REHEAT TABLE TIMER SOFTENMELT MELT TABLE SOFTEN TABLECATEGORY DIRECTIONTIME DEFROST DEFROSTQUICK DEFROST METAL RACK DEFROST TIPSSLIDE-OUT HOOD SLIDE-OUT HOOD PUSHFISH AND SHELLFISH COOKING TABLE GETTING THE BEST COOKING RESULTSFISH AND SHELLFISH MEAT APPETIZERS/SAUCES/SOUPSCooking Appetizers Tips and Techniques Cooking Sauces Tips and TechniquesPOWER MEAT COOKING TABLEMEAT COOKINGLEVEL CHICKENCHICKEN COOKING TABLE RICE COOKING TABLE PASTA AND RICEPASTA COOKING TABLE CLEANING THE GREASE FILTERS CARE AND CLEANINGMETAL RACK Push the Slide-out hood back to original positionOVEN AND WARMING LAMP LIGHT REPLACEMENT REPLACEMENTCHARCOAL FILTER COOKTOP/NIGHT LIGHTMICROWAVE UTENSIL GUIDE COOKING UTENSILSBEFORE CALLING FOR SERVICE TROUBLESHOOTINGTROUBLESHOOTING QUESTIONS AND ANSWERSQUESTION ANSWERHOW SERVICE IS HANDLED LG MICROWAVE OVEN LIMITED WARRANTY - USAWARRANTY PERIOD Model LMHM2017SB / LMHM2017SW / LMHM2017ST / LSMH207ST