Tag Archives: electrical

I must be doing something right!

Back in April 2011, I started writing on this blog site as a way to help my local contractors and dealers. Most of the posts were based on issues these persons were experiencing and this was a good forum to … Continue reading

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Maintaining Equipment Efficiency

I participate in a blog called HVAC SERVICE SELLING  and this was posted on the site by Robert Baker who does commercial heating and cooling.  I felt this tied in nicely with my “Spring Cleaning” series of posts and thought I would pass … Continue reading

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Compressor Electrical Diagnostics — Revisited

In reviewing posts from time to time that have the most views i feel it is a good thing to bring back a post that was previously written.  The following was originally written back in 2011 but there have been … Continue reading

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Spring Cleaning — Part 1

Well, here it is March 3 which places us in meteorological SPRING. (And, for those in the U.S., don’t forget that Day-light Savings Time starts THIS WEEKEND ). I know that those of us up north and out east are still dealing with … Continue reading

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Basic Roof Top Unit — Proper Stat-ups

Concluding my series on Basics – Proper Start-ups – I am ending with a post on Commercial Equipment Start-ups. A lot of this applies to residential equipment also and should be looked at with that also.  The best suggestion that I … Continue reading

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Heating Season — Flame Rectification

Today’s units react to unsafe conditions in less than a second. This is accomplished through the use of “computerized control modules” and a flame sensing control system known as flame rectification. The safety used in today’s furnaces that accomplishes flame rectification is … Continue reading

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Hot Surface Igniters

To start this post, let’s answer the question, What is a Hot Surface Igniter? The hot surface igniter, or glow bar as it is commonly referred to, is a device that lights the burners in your furnace. Just as you used … Continue reading

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“Can’t See The Forest for The Trees”

Of course, the title of this post is a very old saying but I felt is was appropriate here.  Why did I choose this as the title — because the meaning is: If you can’t see the forest for the … Continue reading

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A Real Learning Experience – Electrical Diagnostics

The other day, I had a phone call with a service tech on a rooftop unit.  He had made a diagnosis of a bad motor and went and got a new motor.  He put the new motor in and “it only runs … Continue reading

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4 Bad Boards in 4 Days! (a new record)

Yes, the title of this post is exactly what a contractor had done on a unit — replaced 4 boards in 4 days. I finally got the call from the owner of the building, who was very frustrated and upset … Continue reading

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