When an AC or a DC motor fails to start,...

Question 1 / 270705eccefa4bacbc34ba4d484fc

Question 1 of 270705eccefa4bacbc34ba4d484fc

When an AC or a DC motor fails to start, besides checking for blown fuses or a tripped circuit breaker, what should be the FIRST step in troubleshooting the cause?

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Question 1 of 27070

When an AC or a DC motor fails to start, besides checking for blown fuses or a tripped circuit breaker, what should be the FIRST step in troubleshooting the cause?

🔍 Key Concepts

• Basic troubleshooting sequence for electric motors • Purpose and function of an overload relay in motor protection • Difference between checking for continuity/grounds vs checking protective devices

💭 Think About

• After verifying fuses and breakers, what protective device in the motor circuit is intentionally designed to open the circuit when the motor is overloaded or jammed? • Which step can be done quickly and safely without disconnecting multiple wires or disturbing the motor windings? • In normal practice, do you usually check the motor itself first, or do you confirm that all upstream protection and control devices are properly reset and closed?

✅ Before You Answer

• Identify which choice refers to a resettable protective device that will stop the motor during an overload but can be restored once the problem is cleared. • Eliminate options that require disassembly or detailed meter testing as a first step, rather than a quick check. • Confirm which component is most routinely checked or reset immediately after confirming fuses and breakers are OK.

Question 1 of 27070

When an AC or a DC motor fails to start, besides checking for blown fuses or a tripped circuit breaker, what should be the FIRST step in troubleshooting the cause?

check the motor windings for obvious opens

check the motor controller leads for continuity

check the overload relay

check the motor controller leads for grounds

Question 1 / 270705eccefa4bacbc34ba4d484fc

Question 1 of 270705eccefa4bacbc34ba4d484fc

When an AC or a DC motor fails to start, besides checking for blown fuses or a tripped circuit breaker, what should be the FIRST step in troubleshooting the cause?

Back

Question 1 of 27070

When an AC or a DC motor fails to start, besides checking for blown fuses or a tripped circuit breaker, what should be the FIRST step in troubleshooting the cause?