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 »
Mini split units are a great way to heat or cool a space, with many different-sized units available. Mini split sizes can range from small 6000 BTU units to large 36000 BTU units. The BTUs a unit is rated for is how much cooling and heating capacity it has. Matching the BTU output of a… Read More »
Window-mounted air conditioning units come in all shapes and sizes, from small to large units. Many small-sized units are available to fit into a small window or small room that needs to be cooled. What is the Smallest Window Air Conditioner Available? The smallest window air conditioner we have been able to find is the… 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 »
If you have an error code on a Daikin mini split, the problem can be found by using a chart with the codes listed. Sometimes Daikin unit will not be working, and no code displays, in which case the remote control can be used to find the error code. To use the remote control to… Read More »
If you have a Pioneer or ComfortStar mini split that gives an F0 error code, it is a Compressor Overload Current Protection error. Several things can cause an F0 error code on a mini split, and the error can be manufacturer specific. The most common fix is to turn the unit off at the Breaker… 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 »
Having a good refrigerant scale is an important tool for an HVAC technician, mainly when adding refrigerant to a system. Knowing the exact amount of refrigerant that is added to a system is crucial in getting a job done right. What is an HVAC Refrigerant Scale? An HVAC refrigerant scale measures the amount of refrigerant… Read More »