LG / GOLDSTAR MH704A
Manual de Servicio

TROUBLE SHOOTING
WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL.

CAUTIONS
1. Check grounding before checking for trouble. 2. Be careful of the high voltage circuit. 3. Discharge the high voltage capacitor. (See page 2-1) 4. When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire from these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter. 5. Do not touch any part of the circuitry on the digital programmer circuit since static electric discharge may damage this control panel. Always touch yourself ground while working on this panel to discharge any static charge built up in your body.

CONDITION
Microwave oven does not work.

CAUSE
Inserting many plug into one plug outlet and using them at the same time (causes overloading). Microwave oven plug is not inserted tightly.

REMEDY
Avoid using other electrical appliances when you use the microwave oven.

Insert microwave oven plug securely. Use the microwave oven at adequate line voltage. This may not be a defect. It is possible that the food should be cooked for a longer time period. Do not use metallic ware for cooking except where noted in the cooking guide. Do not use any type of cookware with metallic trimming. 1. Wrap the thinner part with aluminum foil. 2. Use plastic wrap or lid. 3. Stir once or twice while cooking soup, cocoa or milk, etc.

Output power is too low.

Low AC input voltage.

Food temperature is too low.

Sparks occurring.

Using metallic ware and allowing it to touch the oven wall. Ceramic ware trimmed in gold or silver powder is used.

Uneven cooking.

Inconsistent intensity of microwave by their characteristics.

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