If the LG microwave is still in its one-year warranty period, the contact information in the warranty documentation directs the owner to the proper repair company. If the microwave is out of warranty, such companies as Action Appliance & Repair, in Cleveland, can work on microwave ovens.
The Consumer Affairs website indicates that, as of 2015, 61 users have rated LG microwave ovens, with an average rating of just over one star out of a maximum possible of five. One complaint refers to the expense of replacement parts, charging $115 for a new door on a microwave that costs $250. This is a common concern with microwave repairs, as replacement is often very close in cost to repair, and replacement provides a new warranty.