MotorsQuestion 342 of 1506

A hard-start capacitor on an HVAC compressor is failing. Which symptom is typical?

The motor will not turn at all, ever
It runs faster than its rated speed
It draws no current while running
It may start, then overheat and trip

Show answer

Correct answer: It may start, then overheat and trip

The compressor can start but runs poorly, so it overheats and the breaker trips.

Source: Troubleshooting Motors and Controls (Dickson-Self), 6.1: Testing Motor Components

Questions last reviewed: 18 October 2026

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