Ohms Law and HVAC | Heating and Cooling Technical

Ohms Law and HVAC - Ohms Law is used by HVAC Technicians, electricians, electronics technicians, engineers, and others who deal with electrical circuits every day. It is a necessary fundamental that anyone dealing with electricity or electronics should learn. Ohms law is used in many different applications to solve problems (troubleshooting electrical problems), for sizing wire and designing circuits, and for designing printed circuit boards (PCBs). Ohms law is a basic fundamental formula that helps electrical specialist solves problems. Ohms Law is necessary to learn if you are going to be an above-average technician in HVAC.
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Condensing Unit Frozen Wont Turn Off

Condensing Unit Frozen Wont Turn Off - What you can expect to learn from Condensing Unit Frozen won’t Turn Off article: this article is an answer to a question taken from our email by a visitor to High Performance HVAC. We often use the questions we get in the email as a guide to writing articles. The topic is a condensing unit that will not turn off, and it is freezing up. From my experience in the field and using my HVAC knowledge, I offer the readers a list of what could cause this problem. We hope it helps you.
What’s the possible problem with a frozen air conditioner condenser that won’t turn off except with the breaker? (more…)

Blank Display on Thermostat Problem – Screen Disappeared

Blank Display on Thermostat Problem
Blank Display on Thermostat Problem - Screen Disappeared - The thermostat display is our interface with our HVAC equipment. The display lets us know what the temperature is in the house. The display tells us what the desired settings are including letting us know the setpoint setting the temperature.

Some displays give us time, and the newer modern displays show us family photos like a screensaver on our computer. But what happens when the display is not there, or there is a blank thermostat display or no display on the thermostat?

Is it a bad thermostat or something else that caused the display to disappear? What do you do when the thermostat screen is not working? (more…)