Master MOVs (Metal Oxide Varistors): From Theory to Testing

Learn how to identify, test, decode, and replace MOVs (varistors) on and off the board with codes, symbols, and repair

What you'll learn
- Test MOVs with a multimeter both on the board and outside.
- Understand MOV construction, function, and working principle.
- Identify and interpret MOV codes and markings.
- Select the correct replacement MOV confidently.
- Master a full repair workflow step by step.
- Apply this knowledge to laptop repairs, chargers, and power supplies.

Requirements
- Basic knowledge of electronics is helpful but not mandatory.
- A digital multimeter (essential for testing MOVs).
- Curiosity and willingness to learn step by step.

Description
Are you ready to become confident in testing and repairing one of the most important protection components in electronics - the Metal Oxide Varistor (MOV)?

This step-by-step course will teach you everything you need to know about MOVs: fromunderstanding their working principletoreal-world testing on and off the board. You’ll also learn how todecode MOV markings, identify failures, apply safety precautions, and choose the correct replacement part.

By the end of this course, you will:

Understand what a MOV is and why it’s critical in protecting circuits from surges.

Learn how totest MOVs with a multimeter(on-board and off-board).

Decode and interpretMOV markings, symbols, and codeswith ease.

Gain practical skills todetect common failuresand apply repair workflows.

Be able toselect the right replacement MOVfor reliable repairs.

Discoverpro tips and highlightsthat save time and prevent costly mistakes.

This course is designed forbeginners, hobbyists, and repair professionalswho want to strengthen their knowledge of electronic components. You don’t need advanced electronics knowledge, just curiosity, a multimeter, and a willingness to learn.

By the end of this course, you will gain the skills and confidence to test, decode, and repair MOVs like a professional technician.

Enroll now and take your repair skills to the next level with practical, hands-on MOV knowledge.

Who this course is for:
- Laptop and electronics repair beginners.
- Intermediate technicians wanting to master MOVs.
- Hobbyists and students studying electronics repair.
- Anyone interested in surge protection and power circuit troubleshooting.
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