LG LMHM2237ST Owner's Manual

- 30 -

Check the following list to be sure a service call
is really necessary. A quick review of this
manual as well as the additional information in
this checklist may prevent an unneeded
service call.

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 touched.
check that probe was inserted correctly into
receptacle.

• check that timer wasn't started instead of a

cook function.

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.

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• be sure oven wasn’t operated when empty.
• make sure metal rack (if used) is properly installed

on supports.

• check that door is firmly closed.

• check that timer wasn’t started instead of a cooking

function.

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