Monthly Archives: June 2012

Transformers and VA Ratings

Posted on June 27, 2012 by yorkcentraltechtalk

 I often get questions on transformers and blown fuses and asked if they can put in a bigger fuse on the control circuit — of course the answer is NO!   If you keep in mind that everything in an … Continue reading →

Posted in HVAC Tech Support | 4 Comments

Capacitor Substitution

Posted on June 21, 2012 by yorkcentraltechtalk

In one of my previous posts, I wrote about “Everything You Wanted to Know About Capacitors”, well, I didn’t give you everything I guess. You all should know by now that you have to “match” the capacitance micro farad within the tolerance … Continue reading →

Posted in HVAC Tech Support | 2 Comments

Basic Electrical Troubleshooting or “How To Use Meters” (part 4)

Posted on June 16, 2012 by yorkcentraltechtalk

Now the part you all have been anxiously waiting for — actually getting to use meters to diagnose problems. BUT… before we can do this, we need to always discuss safety. We will sometimes be dealing with live circuits so we … Continue reading →

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Basic Electrical Troubleshooting or “How To Use Meters” (part 3)

Posted on June 13, 2012 by yorkcentraltechtalk

We now understand that an electrical circuit is made up of power sources, switches, and light bulbs but in order to use meters to diagnose an electrical circuit, we need to understand what the electricity is doing. We need to … Continue reading →

Posted in Commentary, HVAC Tech Support | 1 Comment

Basic Electrical Troubleshooting or “How To Use Meters” (part 2)

Posted on June 8, 2012 by yorkcentraltechtalk

Before we can start to use meters, we need to understand the basic electrical circuits in a piece of equipment.  How I was taught about electricity is pretty simplistic but it made me really understand circuit diagnostics and that was — in … Continue reading →

Posted in Commentary, HVAC Tech Support | 3 Comments

Basic Electrical Troubleshooting or “How To Use Meters” (part1)

Posted on June 4, 2012 by yorkcentraltechtalk

Since most of my postings are based on the phone calls I receive from “technicians” in the field or at job sites, I feel compelled to write this blog about basic Electrical Troubleshooting. Let’s start with a few examples of … Continue reading →

Posted in Commentary | 2 Comments