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Identifying the Cause of Improper Voltage Readings


By Dave Rongey - Summary:

How to Identify the Cause of Wrong Voltage Readings: I installed a new breaker panel in an old house that had fuses. I rewired whole house, everything works great, replaced 10-2 wire to the barn with 3 – 1 AWG wires.

Correcting Wrong Voltage Readings

Electrical Question: I installed a new breaker panel in an old house that had fuses. I rewired whole house, everything works great, replaced 10-2 wire to the barn with 3 # 1 AWG wires.

What did I do wrong?

This electrical repair question came from a Handyman in Battle Creek, Michigan.

Dave’s Reply:
Thanks for your electrical repair question.

How to Identify the Cause of Wrong Voltage Readings

Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience and ability to work with tools and access to the work area.
Precaution: Identify the circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing or upgrading electrical wiring should be done with a permit and be inspected.

Common Causes of Wrong or Low Voltage Readings

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