When Troubleshooting a Residential Heating System, the Technician Reads 24

question 3

Multiple Choice

When troubleshooting a residential heating system, the technician reads 24 volts across R and W on the furnace low-voltage terminal strip with the thermostat set to call for heating. What would be the most likely problem?

• A) defective gas valve
• B) defective transformer
• C) blown high-voltage fuse
• D) defective thermostat

---

Definitions:

Lewin's Force Field Analysis

A conceptual framework for analyzing the factors (forces) that influence a situation, identifying those that support a particular goal (driving forces) and those that oppose it (restraining forces).

Restraining Forces

Factors that resist or oppose change within an organization, hindering its progress and adaptation.

Driving Forces

Factors that actively contribute to the movement, change, or development of certain processes or outcomes.

Unfreezing

The initial phase in the change process where existing behaviors, attitudes, or norms are challenged and destabilized.