What to do if my LG Microwave Oven doesn't operate at all?
If your LG Microwave Oven doesn't operate, with no display and no input accepted, check the continuity of the primary switch with the door opened. Also, the fan motor or oven lamp may be defective and need replacement.
What to do if my LG MS-114ML Microwave Oven has no microwave oscillation?
If your LG Microwave Oven has no microwave oscillation, even though the oven lamp and fan motor are running, the PCB assembly may be defective and needs replacement. Also, disconnect the wire leads from relay 2 and check continuity while operating the unit.
Why is my LG MS-114ML Microwave Oven sparking?
Sparks in your LG Microwave Oven may occur if you are using metallic ware that touches the oven wall. Avoid using metallic ware unless specifically noted in the cooking guide. Also, ceramic ware with gold or silver trim can cause sparks, so do not use cookware with metallic trimming. Uneven cooking can also cause sparks, so wrap thinner parts of the food with aluminum foil, use plastic wrap or a lid, and stir the food while cooking.
Why is the output power of my LG Microwave Oven too low?
Low output power in your LG Microwave Oven can be due to low AC input voltage. Ensure you are using the microwave oven at adequate line voltage. Also, if the food temperature is too low, it may require a longer cooking time; this may not be a defect.
What to do if my LG MS-114ML fuse blows?
If the fuse blows in your LG Microwave Oven, it could be due to a malfunction of the monitor switch. Replace the fuse, primary, monitor switches, and RELAY(RY2) of the P.C.B Assembly.
How to fix low output in LG MS-114ML?
If the output of your LG Microwave Oven is lower than 90%, it may be due to a decrease in power source voltage. Contact your local electric power utility company or a qualified electrician.
How to prevent blown fuse in LG Microwave Oven?
To prevent a blown fuse in your LG Microwave Oven, avoid using other electrical appliances at the same time as the microwave oven.
General| Brand | LG |
|---|---|
| Model | MS-114ML |
| Category | Microwave Oven |
| Language | English |
Information on preventing exposure to microwave energy during servicing.
Step-by-step guidance for physically setting up the microwave oven.
Mandatory procedures for ensuring the microwave oven is properly earthed.
Overview of the microwave oven's physical components and their functions.
Explanation of the buttons and display on the microwave oven's control panel.
Critical safety information regarding components in shaded areas of the schematic.
List of necessary tools and equipment for microwave oven servicing.
Procedures and precautions for testing microwave radiation leakage.
Microwave leakage measurement procedures with the outer case off.
Leakage checks on the fully assembled microwave oven, including door and vents.
Methodology for measuring the microwave oven's power output.
Instructions for safely removing the external casing of the microwave oven.
Procedure for disconnecting and handling the power supply cord.
Steps for removing and accessing the control panel assembly.
Guide to safely removing the entire door assembly from the microwave oven.
Procedure for safely removing the high voltage transformer.
Steps for removing the cooling fan motor assembly.
Procedure for safely removing the high voltage capacitor and diode.
Instructions for removing the air duct assembly.
Detailed steps for safely removing the magnetron component.
Procedure for removing the turntable motor.
Steps for removing the Printed Circuit Board (PCB) assembly.
Details on the door interlock mechanism and its function.
Testing procedures for the high voltage transformer's windings and ground.
Testing procedures for the magnetron's filament and chassis connections.
Testing procedures for the high voltage capacitor's terminal and case.
Testing procedures for the high voltage diode's forward and reverse continuity.
Continuity test for Relay 2 based on power levels and operating times.
Resistance test for the cooling fan motor.
Resistance test for the turntable motor.
Safety warnings and precautions before attempting troubleshooting.
Diagnosing problems related to the control circuit and display malfunctions.
Troubleshooting when the oven does not operate, start cooking, or has low heat.
Diagnosing issues with no microwave oscillation or incorrect power level output.
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