What to do if my LG MH-655T doesn't operate at all?
If your LG Microwave Oven doesn't operate at all, and the display window shows nothing, it could be due to several reasons. The fuse might have blown and needs replacement. Alternatively, the magnetron thermostat or the power supply cord could be defective and require replacement. It may be necessary to replace primary and monitor switches.
Why does my LG MH-655T not cook properly?
If your LG Microwave Oven does not cook properly when programmed for the set power level, it might be due to a defective P.C.B assembly, which would need to be replaced.
Why is the output power too low on my LG MH-655T?
The output power of your LG Microwave Oven might be low due to low AC input voltage. Ensure you are using the microwave oven at adequate line voltage. Also, it may not be a defect, and the food may simply need to be cooked for a longer time.
What to do if my LG MH-655T Microwave Oven seems to be operating but little heat is produced?
If your LG Microwave Oven seems to be operating but produces little heat, it could be due to the power source voltage being lower than 90%. It is suggested the customer contact local electric power utility co. or qualified electrician. Alternatively, the P.C.B assembly or the magnetron might be defective and require replacement.
Why is the temperature lower in my LG Microwave Oven?
If the temperature is lower in your LG Microwave Oven, it could be due to a malfunction in the heater, requiring its replacement. It might also be due to a malfunction in the thermostat and relay3 (Grill), necessitating a thermostat replacement.
Why is my LG MH-655T Microwave Oven sparking?
Sparks may occur in your LG Microwave Oven due to using metallic ware that touches the oven wall. Avoid using metallic ware for cooking unless the cooking guide permits it. Also, ceramic ware trimmed in gold or silver powder can cause sparks, so avoid using cookware with metallic trimming. You can wrap the thinner part with aluminum foil, use plastic wrap or lid, and stir while cooking soup, cocoa or milk.
Why does my LG MH-655T display all figures but not start cooking?
If your LG Microwave Oven displays all figures but doesn't start cooking, even with the program times set and the START pad touched, it could be due to a defective secondary switch, which would need replacement. Another possibility is a loose connection, which should be connected tightly. Also, a defective P.C.B assembly might be the cause, requiring its replacement.
What to do if my LG MH-655T Microwave Oven has no microwave oscillation?
If your LG Microwave Oven has no microwave oscillation, even though the oven lamp and fan motor run, it could be due to a defective P.C.B assembly, high voltage capacitor, high voltage diode, or magnetron. Each of these components would need to be replaced.
Why is the heater not operating in my LG MH-655T?
If the heater is not operating in your LG Microwave Oven, it could be due to a malfunction in the heater itself, requiring its replacement. Alternatively, the thermostat and relay3 (Grill) might be malfunctioning, necessitating a thermostat replacement. Check also for wire connections that are open or loose and connect them tightly.
Warnings about exposure to microwave energy during servicing.
Procedures for safely placing and setting up the microwave oven.
Guidelines for ensuring proper electrical grounding of the appliance.
Overview of the microwave oven's external components and functions.
Description and function of each button on the control panel.
List of necessary tools and equipment for servicing.
Procedures for checking microwave radiation leakage from the oven.
Methods for measuring microwave energy emission levels.
Measuring leakage after outer case removal, focusing on specific parts.
Important considerations and tips for accurate measurement.
Requirements for documenting and reporting measurement results.
Measuring leakage on the completely assembled oven unit.
Method to measure the microwave power output using a water load.
Step-by-step instructions for taking the oven apart and making adjustments.
Procedure to remove the entire door assembly.
Steps to disconnect and remove the high voltage transformer.
Instructions for removing the fan motor and associated parts.
Steps for safely removing high voltage capacitor and diodes.
Procedure for removing the air duct assembly.
Detailed steps for safely removing the magnetron unit.
Instructions for disconnecting and removing the turntable motor.
Steps to remove the Printed Circuit Board assembly.
Explanation of the door lock mechanism and its safety function.
Procedure to test the continuity of the primary interlock switch.
Procedure to test the continuity of the secondary interlock switch.
Procedure to test the continuity of the monitor switch.
Test procedure to measure resistance of the high voltage transformer windings.
Test procedure to measure resistance of the magnetron filament and chassis.
Test procedure to measure resistance of the high voltage capacitor terminals.
Test procedure to measure continuity of the high voltage diode.
Test procedure to check the continuity of the fuse.
Test procedure to measure resistance of the heater element.
Test procedure for the grill thermostat.
Test procedure for oven and magnetron thermostats.
Test procedure for relays on the PCB, checking continuity and resistance.
Test procedure to measure the resistance of the fan motor.
Test procedure to measure the resistance of the turntable motor.
Diagram showing the different parts that constitute the microwave door assembly.
Diagram illustrating the individual components of the control panel.
Diagram showing the internal parts of the oven cavity.
Diagram displaying the components of the latch board mechanism.
Diagram showing various internal components and their layout.
Diagram illustrating the parts located on the base plate of the microwave.
General| Power Output | 1000 W |
|---|---|
| Turntable | Yes |
| NeoChef | Yes |
| Smart Inverter | Yes |
| Display Type | LED |
| Cooking Levels | 5 |
| Grill | No |
| Convection | No |
| Auto Cook Menu | Yes |
| Child Lock | Yes |
| Type | Microwave Oven |
| Capacity | 25L |
| Control Type | Touch |
| Cavity Type | EasyClean |
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