Testing components with ohms and continuity: the basics
Most electrical parts can be checked power-off with ohms. Disconnect the part so other circuits don't skew the reading, compare with the tech sheet value, and always check from each terminal to the metal frame for a ground fault.
Before you start
- Power off, verified 0 V, capacitors discharged before any ohms or continuity test
Diagnostic steps
Unlock all 5 steps with expected values
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Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.
