Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

Note: Before we get into the details of this particular situation, we want to point out that there are actually three questions to answer. In this month’s troubleshooting problem, the equipment is a ...

The "hot" in hot rod has meaning. High-performance engines make power through heat. Heat is as much a part of the performance equation as fuel, air and spark. Heat expands air and provides an optimum ...

The human body doesn't like to overheat and engine's aren't much different. Temperature can determine just how much power an engine can make, how efficiently it will run, and whether or not it will ...