GE LMAB1240ST service manual Defective high voltage transformer

Page 26

(TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run (Display operates properly)

CONDITION

No microwave oscillation.

CHECK

RESULT

Disconnect the

No continuity.

wire leads from

 

relay 2 and

 

check continuity

Continuity.

of relay2.

 

(Operate the unit)

 

Check high vol-

Abnormal

tage transformer

 

Normal

CAUSE

Defective P.C.B assembly

Defective high voltage transformer.

REMEDY

Replace P.C.B assembly

Replace high voltage transformer.

Check high vol-

Abnormal

Defective high

tage capacitor

voltage capacitor.

 

 

Normal

 

Check high vol-

Abnormal

Defective high

tage diode

voltage diode.

 

 

Normal

 

Check

Abnormal

Defective

magnetron.

magnetron.

 

Replace high voltage capacitor.

Replace high voltage diode.

Replace magnetron.

NOTE : • Make sure the wire leads correct position.

•When Removing the wire leads from the parts, be sure to grasp the connector, not the wires.

•When removing the magnetron, be sure to install the magnetron gasket in the correct position and in good condition.

Output is full power when you set lower power level.

Disconnect the wire leads from relay 2 and check continuity relay 2. (Operate the unit)

Abnormal.

Defective P.C.B. assembly.

Replace P.C.B. assembly.

5-15

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Contents Microwave Oven Safety Precautions Microwave RadiationContents Specifications DescriptionMicrowave Radiation AntennaGrounding Instructions InstallationInstalling Control Panel FeaturesOperating Instructions Operating Sequence Schematic Diagram I *Check the Rating Model No Page Circuit Description Microwave Leakage Test Service InformationTools and Measuring Instruments Necessary ToolsMeasurement with Outer Case Removed Measurement with a Fully Assembled OvenPower Supply Cord Measurement of Microwave Power OutputDisassembly and Adjustment Control Panel AssemblyPCB Assembly Removal Door Assembly RemovalVery Carefully Magnetron RemovalRemoving the Turntable Motor High Voltage Capacitor and Diode Removal FAN Motor Assembly RemovalHigh Voltage Transformer Removal Iinterlock SystemMonitor Switch Test Primary Interlock Switch TestSecondary Interlock Switch Test SwitchesMagnetron Component Test ProcedureFilament Winding Primary Terminal Diode High VoltageCapacitor Level PowerRelay FAN MotorTrouble Shooting Condition Cause RemedyResult Result Condition Check Defective high voltage transformer Exploded View IntroductionDoor Parts Control Panel Parts Oven Cavity Parts Larch Board Parts Interiot Parts Model LMAB1240ST56201A Base Plate Parts

LMAB1240ST specifications

The GE LMAB1240ST is a remarkable side-by-side refrigerator that embodies modern design and advanced technology, catering to the needs of today's consumers. Offering a perfect blend of style, functionality, and efficiency, this model stands out in the crowded marketplace.

One of the main features of the LMAB1240ST is its spacious interior. With a generous capacity of 24.9 cubic feet, this refrigerator provides ample storage for families and individuals alike. The side-by-side configuration allows easy access to both fresh and frozen foods, making organization simple and efficient.

In terms of cooling technology, the LMAB1240ST uses advanced climate control features. The refrigerator is equipped with a multi-air flow system that ensures consistent airflow throughout the unit. This technology helps maintain even temperatures, keeping food fresher for longer. Additionally, the adjustable shelves allow for customization of the interior space, accommodating various sizes of food items and containers.

The GE LMAB1240ST emphasizes energy efficiency as well. It is Energy Star certified, indicating that it meets or exceeds energy efficiency guidelines set by the U.S. Environmental Protection Agency. This not only helps reduce utility bills but also minimizes environmental impact, which is a consideration for eco-conscious consumers.

Another significant feature of this model is its water and ice dispenser. The dispenser is designed to provide chilled water and cubed/crushed ice right at your fingertips. It is conveniently located on the front of the refrigerator for easy access. The filter system ensures that the water dispensed is clean and free from contaminants, enhancing safety and taste.

Additionally, the LMAB1240ST boasts advanced convenience features such as LED lighting, which provides bright and energy-efficient illumination within the refrigerator and freezer compartments. The easy-to-use temperature controls allow users to adjust settings effortlessly, ensuring optimal conditions for food storage.

Lastly, the stainless steel finish of the GE LMAB1240ST not only adds a sleek and contemporary look but also resists fingerprints and smudges, making maintenance more manageable. With a combination of innovative features, energy efficiency, and stylish aesthetics, the GE LMAB1240ST is an exceptional choice for anyone looking to upgrade their kitchen appliance.
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