Air Conditioner Circuit Board Troubleshooting

Air Conditioner Circuit Board Troubleshooting
Air Conditioner Circuit Board Troubleshooting Question - Hello, my name is Calvin and I am an HVAC Technician that graduated from a community college 2 years ago and I am still learning and know I have much more to learn before I think of myself as an expert. I have been running into a lot of circuit boards in air conditioners and heat pumps and I simply want to know what is the best way to troubleshoot and air conditioner circuit board? It seems like a lot of electronics and they never covered electronics too much in school.

I do understand basic electrical circuits and how circuits work in the air conditioners and heat pumps I work on but more and more systems are getting electronic circuit boards and I would like to know the best way to troubleshoot these air conditioner circuit boards so I can make the repair.Thanks for your help and I have learned a lot from your website. I look forward to your answer! (more…)

How Much Refrigerant for the Air Conditioner

How Much Refrigerant for the Air Conditioner Question: What amount of Freon would it take to service a unit that services a 1200 square foot residential house if it were completely depleted?

How Much Refrigerant for the Air Conditioner

Answer: We get questions like this a lot in our email and this is not easily answered especially when we are talking about charging an air conditioner or heat system. No matter how the system lost its charge of refrigerant (many people refer to it as Freon which is technically incorrect) there are many things you need to know before attempting to charge the air conditioner or heat pump with refrigerant (or Freon is you prefer). (more…)

Fix Sweating Copper Pipes

What you will learn from How to Fix Sweating Copper Pipes article:

  1. one of our readers submitted the question, How to Fix Sweating Copper Pipes - and we will answer her question.
  2. a description of the problem with the sweating pipe
  3. the name of the copper pipe causing the problem and why it is sweating
  4. the repair of the sweating copper pipe to stop it from sweating
  5. what you need to know about sweating pipes and any moisture problem in your house
  6. lots of resource and related links to help you learn


Supply Vent Myth – Does Closing Supply Vents Save?

What you will learn with Supply Vent Myth article:

  1. How modern duct systems are designed
  2. How closing the supply vents effects the static pressure in the duct work
  3. How closing supply vents effects modern HVAC equipment
  4. How to save energy and therefore money
  5. Where to obtain the books and/or software to learn how professionals design duct systems and do load calculations for sizing heating and cooling systems
  6. How heating and cooling equipment ie furnace, air conditioner, or heat pump can be effected by closing off supply vents
  7. Alternative methods used in commercial HVAC
  8. Alternatives for residential HVAC

Air Conditioner Causes Water Damage

Air Conditioner Causes Water DamageAir Conditioner Causes Water Damage Question - Hello, We need to ask you about water damage and how an air conditioner can cause this kind of damage. The whole ceiling in one of the rental properties just fell into the living room. All the drywall and insulation from the attic fell and caused damage to our tenants furniture. Thank God the tenants were not at home and injured when the ceiling fell in. The insurance adjuster came out and looked at it and said the problem was because the filter was clogged and air conditioner froze up inside the air handler.

Replace HVAC Compressor for Air Conditioner Repair

Replace HVAC Compressor for Air Conditioner Repair - Question - Richard - I am an HVAC technician and have read all of your articles on refrigeration and compressors. Great information and it has helped to hone my skills and offer better service for my customers. Thanks! I was wondering what your experience is with replacing compressors. How do you arrive at the decision to replace a compressor technically speaking of course? Do you recommend repairing the air conditioner by replacing the compressor or replacing the central air conditioner? I look forward to reading your answer. Brett Des Moines, WA

Air Conditioner Components | HVAC Cooling

Air Conditioner Components | HVAC CoolingAir Conditioner Components - There are big differences between heat pumps and air conditioners. While the air conditioner provides cooling the heat pump will provide heating and cooling so the components inside the air conditioner differ from the components inside the heat pump system. I constantly get emails from people asking if they can convert their air conditioner to a heat pump and of course they can but it is not recommended. I have even devoted an article to it for those who are considering converting their air conditioner to a heat pump.  After all, if you sit a heat pump next to a condenser it would be impossible to tell the difference from the air conditioner condenser to the heat pump condenser unless you looked inside the unit and was able to identify the different components from a heat pump to an air conditioner.  Here are the basic components of an air conditioner that make the air conditioner cool your home or business. (more…)

Delay Timers and the Air Conditioner Condenser | HVAC Control

Delay Timers and the Air Conditioner Condenser - Unit with the top off - condenser fan motor
Delay Timers and the Air Conditioner Condenser - Air Conditioners are big HVAC refrigerators. Air Conditioners and Heat Pumps use the HVAC refrigeration cycle to transfer heat from a place where it is not wanted (inside absorbing heat with the evaporator coil) to a place that makes no difference (outside using the condensing unit)(in the cooling cycle). The heart of any HVAC air conditioning, heat pump, or refrigeration system is the compressor which pumps the refrigerant through the HVAC air conditioning system. (more…)

Air Conditioner Condenser Electrical Components – HVAC Cooling

What you will learn from this article Air Conditioner Condenser Electrical Components:

  1. Brief description of air conditioner condenser electrical components
  2. Code requirements for the condensing unit feeder circuit, fuse box, and wire running to the condenser
  3. Wiring inside the condenser
  4. Description of various electrical components inside the condenser
  5. Lots of resource and related links to help you learn more.


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