EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
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Textbook Question
Chapter 12, Problem 7SQ
When the thermostat contacts close the blower motor starts but the heating elements never turn on. Which of the following could cause this problem?
- a. The flow switch is defective.
- b. The fan thermostat is defective.
- c. CR relay coil is open.
- d. Timed contact T2 is defective.
FIG. 12–10 Air flow must be present before heating elements can be energized.
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Chapter 12 Solutions
EBK ELECTRIC MOTOR CONTROL
Ch. 12 - Prob. 1SQCh. 12 - Draw a line diagram to show that a green light...Ch. 12 - Draw a one-line diagram showing a bell that will...Ch. 12 - To answer the following questions refer to Figure...Ch. 12 - When the thermostat contacts close, the blower...Ch. 12 - When the thermostat contacts close, the blower...Ch. 12 - When the thermostat contacts close the blower...
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