If you have an HVAC system that has a single dual round capacitor, it can be split into two separate capacitors. Two separate single capacitors can be installed when a dual round has failed. First of all, I don’t suggest doing this, and it is only a quick fix when you don’t have the correct… Read More »
Not all air conditioners have the same quality when it comes to the noise they make. Some are barely noticeable, while others can create a racket that can become annoying, to say the least. Through-the-wall air conditioning units are no exception and are the loudest, along with window-mounted units. They are the loudest because the… Read More »
A gas furnace pressure switch is a necessary component for safety and for the furnace to turn on. If the switch is not working, the furnace will not start. What is a Gas Furnace Pressure Switch? A gas furnace pressure switch is a safety component that makes sure gas is being vented from a furnace… Read More »
Replacing a furnace filter is often not on the top of the to-do list. It can be overlooked until the furnace is not working properly or the air becomes less clean. People with allergies are often the first to notice when a furnace filter has become dirty and needs to be replaced. And just as… Read More »
Contactors and relays are used in almost all heating, cooling, and refrigeration systems to manage electrical loads. They are both similar since both contain a coil that opens or closes the contacts. A Contactor is larger and capable of carrying more amperage than a relay. When testing same procedures can be used to check both… Read More »
A furnace blower motor can be replaced by a handy DIY homeowner, which can save money. Of course, if in-doubt, be sure to call a professional HVAC technician. A new motor and capacitor will need to be bought to replace the old unit. Most hardware stores will not carry a furnace motor, but a new… Read More »
What is a Fan Limit Switch? A furnace has two switches, a fan limit switch and a high limit switch; these switches can be separate or in one package called a combination switch. High limit switch A high limit control switch will turn off the gas to a furnace if the temperature becomes too high.… Read More »
A brazing torch is often required in HVAC mainly to solder line-sets or fix a refrigerant leak. As with many tools in HVAC, they are not the cheapest thing to buy, usually running $200-$500 dollars depending on the brand. Often, a set can be bought cheaply at a swap meet although this may be a… Read More »
Finding a refrigerant leak in an HVAC system can be easy at times, and other times, almost impossible. One method is to use a bubbly liquid sprayed around where a possible leak is to visibly see the location of the leak. Using this method does work but often requires lots of time, especially for small,… Read More »
R410A Refrigerant Pressure Temperature Chart R134A Refrigerant Pressure Temperature Chart R404 Refrigerant Pressure Temperature Chart R22 Refrigerant Pressure Temperature Chart Pressure Temp Chart R-11, R-12, R-22, R123, R134A, R404A, R-500, R502 Using an HVAC refrigerant pressure temperature chart is necessary to be sure a unit is operating correctly. Below are three free pressure temperature charts… Read More »