Monthly Archives: January 2013

Proper Troubleshooting

One of my very early post was titled Are You A Parts Changer and I had a couple of calls today that made me think it was time to re-post this with some changes. There are some basic rules to troubleshooting. … Continue reading

Posted in Commentary | 1 Comment

Refrigerant Filter-Driers

Filter-driers play a very important role in the operation of air conditioning and refrigeration systems. At the heart of the drier is the desiccant held in its cylindrical metal container. As important as the filter-drier is, many actually do not … Continue reading

Posted in HVAC Tech Support | 14 Comments

Vent Temperature as a Diagnostic

On 90+% high-efficiency furnaces, what should the vent temperature be? To start this discussion, you first need to understand how the venting system is tested for a 90+% efficient furnace.  Temperature testing is done to assure the materials (ie. schedule 40 … Continue reading

Posted in HVAC Tech Support | 2 Comments

New Construction Furnace Usage

With the economy slowly turning around, new home construction has started to pick up again — this is good!  Since new home construction is making a come back, it is time to remind everyone about the practice of using the … Continue reading

Posted in HVAC Tech Support | 2 Comments

ECM “Emergency” Motor Replacement

As I promised, since the world did not end on 12/21/12 with the end of the Mayan calendar, here is my first post of the NEW YEAR. Simple Scenario —– Here it is the middle of the night — it’s … Continue reading

Posted in HVAC Tech Support | 10 Comments