Refrigeration & Air Conditioning Mechanic Red Seal · Question
In a residential split system air conditioner, if the outdoor fan motor runs but the compressor does not, and the capacitor tests good, what is a likely cause?
If the fan runs but the compressor doesn't start and the capacitor is good, the internal overload in the compressor is a common failure, protecting the motor.
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Question: In a residential split system air conditioner, if the outdoor fan motor runs but the compressor does not, and the capacitor tests good, what is a likely cause?
Answer options:
- Liquid line restriction
- Low refrigerant charge ✅ Defective compressor internal overload
- Plugged air filter
Correct answer: Defective compressor internal overload
Explanation: If the fan runs but the compressor doesn't start and the capacitor is good, the internal overload in the compressor is a common failure, protecting the motor.
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Question explanations
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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