If a refrigeration compressor will not start...

Question 1 / 205eccef9ebacbc34ba4d4617c

Question 1 of 205eccef9ebacbc34ba4d4617c

If a refrigeration compressor will not start even though the box temperature is high, which of the following would be a probable reason for this?

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Question 1 of 20

5eccef9ebacbc34ba4d4617c

If a refrigeration compressor will not start even though the box temperature is high, which of the following would be a probable reason for this?

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🔍 Key Concepts

• Low-pressure cutout controls that prevent compressor operation at low suction pressure • Effect of refrigerant charge level on suction pressure and compressor starting • How mechanical internal faults (valves, rings) affect running efficiency vs. starting ability

💭 Think About

• Think about which condition would keep the safety/control circuit from allowing the compressor to start even though the box is warm • Which option would most directly cause the suction pressure to be too low for the low-pressure control to close? • Which of the mechanical problems listed would mainly reduce capacity/efficiency rather than prevent the motor from starting at all?

✅ Before You Answer

• Identify which choice would lower suction pressure enough to keep a low-pressure cutout open • Decide which faults would more likely show up as poor cooling while running instead of a total failure to start • Verify that the condition you choose is one that a pressure-operated control could actually sense and react to

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Question 1 of 20

If a refrigeration compressor will not start even though the box temperature is high, which of the following would be a probable reason for this?

the pressure regulating valve is not closing

an excessive lack of refrigerant in the system

badly leaking discharge valves

worn piston rings

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Question 1 / 205eccef9ebacbc34ba4d4617c

Question 1 of 205eccef9ebacbc34ba4d4617c

If a refrigeration compressor will not start even though the box temperature is high, which of the following would be a probable reason for this?

Back

Question 1 of 20

5eccef9ebacbc34ba4d4617c

If a refrigeration compressor will not start even though the box temperature is high, which of the following would be a probable reason for this?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed