Patrick Caldarone HVAC/R Evacuation Quiz September 25, 2021, 5:50 pm

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Tech Tips

Switch Voltage
On an energized, intact circuit, you will read voltage across an OPEN switch when testing with a voltmeter. However, you probably won't read significant voltage across a CLOSED switch. Both sides of a closed switch are electrically identical (or at least very close). Therefore, there should be no movement of electrons between the leads of […]
Read more
Ideas Have Consequences
The year was 1774, and a man named Tom traveled the Atlantic from England to visit his friend Ben in Philly. Tom was 37 years old, and he had already been through a failed business and lost his wife and child during childbirth. He was a troublemaker by some accounts—a free spirit at the very […]
Read more
Preventing Callbacks and Warranty Returns
“Haven’t you heard?! Air conditioning is a fundamental human right! If you don’t support my right to have air conditioning 24/7, then you’re an awful human being!” Okay, that impression of an entitled customer is a bit of an exaggeration, but it is true that customers have high expectations for service workers.  But can we […]
Read more
loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from