Refrigeration & Air Conditioning Mechanic Red Seal · Question
A compressor that is 'short cycling' (frequently turning on and off) often indicates what?
Short cycling can be caused by an undersized system, thermostat issues, low refrigerant charge (leading to rapid pressure drops), or other control problems.
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Question: A compressor that is 'short cycling' (frequently turning on and off) often indicates what?
Answer options: ✅ Improperly sized system or control issue
- Overcharge of refrigerant
- Restricted airflow across the condenser
- Dirty filter drier
Correct answer: Improperly sized system or control issue
Explanation: Short cycling can be caused by an undersized system, thermostat issues, low refrigerant charge (leading to rapid pressure drops), or other control problems.
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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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