LG LMVM1945SW Service Manual

23, 7-12 TEST THE LATCH AND SWITCH SEQUENCE (5) Open the oven door slowly. Watch the door latch, the Primary Switch. Release Rod and Lever on the switches to make sure they are zero to the body of the switches in the following sequence: - Primary Interlock Switch - Secondary …

28, 7-17 NOTES: • A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. • MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION. • WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE CONNECTOR, NOT THE WIRES. B. CHE…

41, 8-6 INTERIOR PARTS (I) 33390G 56631A 552381 568711 54974S 559002 56549F 56324A 552382 50CZZH 35012A 568772 56851H 53550F 54930F 36549S WTP013 340511 53300B 35889A 34351A 559001 54980A WTT028 WTT028 WTT028 WTT028 WSZ002 WTT028 WTT028 WTT028 WTT028 WTP015 WTT034 W…

3, FOREWORD Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposing yourself to the Microwave Energy normally contained within the oven cavity. TABLE OF CONTENTS (Page) SAFETY PRECAUTIONS ...........................…

11, LG LMVM1945SW 6-1 GENERAL PRECAUTIONS IN USE A. Never operate the unit when it is empty. Operating the oven with no load may shorten the life of the magnetron. Whenever cooking dry foods (dried fish, bread, etc.) or a small amount of food, be sure to put a glass of water into the…

20, LG LMVM1945SW I. ASSEMBLING DOOR (1) When mounting the door assembly to the oven assembly, be sure to adjust the door assembly parallel to the chassis. Also adjust so the door has no play between the inner door surface and oven frame assembly. If the door assembly is not m…

6, LG LMVM1945SW 3-1 INSTALLATION PRECAUTIONS ON INSTALLATION A. Plug the power supply cord into a 120V AC, 60Hz, single-phase power source with a capacity of 15A or 20A. B. Avoid placing the unit in a location where there is direct heat or splashing water. C. Install the unit …

14, LG LMVM1945SW 7-3 MEASUREMENT WITH THE OUTER CASE REMOVED (1) When you replace the magnetron, measure for microwave energy leakage before the outer case is installed and after all necessary components are replaced or adjusted. Special care should be taken in measuring the…

12, PRELIMINARY A. SINCE NEARLY 2,100 VOLTS EXISTS IN SOME CIRCUITS OF THIS UNIT REPAIRS SHOULD BE CARRIED OUT WITH GREAT CARE. The filament leads of magnetron carry High Voltage with respect to ground. Extreme caution must be exercised. Never plug the unit into a …

29, LG LMVM1945SW 7-18 (2) CHECKOUT PROCEDURES FOR RELAY. - PROBLEM (A) - FAN motor turns on without touching START key when the door is closed. Remove the mate connector of I/O CON from the circuit board. Does the unit still operate? GOOD Replace the circuit board Replace Wire Assembly…

15, LG LMVM1945SW IMPORTANT NOTES: UNIT MUST BE DISCONNECTED FROM ELEC- TRICAL OUTLET WHEN MAKING REPAIRS, RE- PLACEMENTS, ADJUSTMENTS AND CONTIN- UITY CHECKS. WHEN RECONNECTING THE WIRE LEADS TO ANY PART, MAKE SURE THE WIRING CONNE- CTIONS AND LEAD COLORS ARE CORRECTLY MATCHED…

30, 7-19 NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON. (3) CHECKOUT PROCEDURES FOR CIRCUIT BOARD The following symptoms indicate a defective circuit board. 1) The start function fails to operate but the high …

16, B. REMOVING THE OUT CASE(Figure 4) (1) Remove the vent grille by removing two screws securing it to the out case. (2) Remove two screws securing it to the air duct. (3) Remove the mounting plate by turning the screws (1 or 2 screws) securing it to the out case. (4) Remove two sc…