1. Dis-connect power to test capacitor
Start by making the motor safe to test by disconnecting power. Ideally, the unit should be unplugged, but shutting off
a circuit breaker or disconnect may be adequate provided it can be locked out against accidental re-engagement.
The test capacitor procedure must only be carried out after it has been verified that power is no longer present.
2. Check for residual voltage at test capacitor
Whenever you plan to test capacitor condition or electrical value, it is a vital practice to remove any residual power
that may still be stored. Using the metal blade of a screwdriver with an insulated handle will allow you to discharge
any stored voltage by simply shorting the terminals of the capacitor. The test capacitor may emit a spark and a popsound upon discharge. This is normal.
3. Remove test capacitor from the circuit
You'll need to remove the capacitor from the circuit before performing a test. Disconnect one or both terminals
from the motor to the test capacitor to remove it from the circuit. Disconnecting only one side will perform the
desired result but leaves the capacitor dangling from the motor, making probing a little more difficult.
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