Why Would My Air Conditioning Line Freeze Up?

Why Would My Air Conditioning Line Freeze Up?

Reasons Your Air Conditioning May Freeze Up The function of an air conditioning unit is to keep a home or business cool during the hot summer months. However, there is always the chance of air conditioning lines freezing up. When those AC lines freeze, there are a number of reasons to explain why that happened. Here is a look at those reasons. Dirty Air Filter An air conditioning unit depends on air flow across the coils in order for it to work properly. If that air becomes blocked and there is no air flow, your AC lines will freeze. The coils are actually what freezes and cause a build-up of ice. Take out your air filter, hold it up to the light and if you cannot see through it then it is too dirty and needs to be changed. Low Refrigerant In order for an air conditioning unit to function, there needs to be an adequate amount of refrigerant running through the lines. When a system becomes low on refrigerant, the freezing point becomes lower and that results in ice accumulating on the tubes. Bad Thermal Expansion Valve Another reason for frozen lines in an AC unit is due to a faulty thermal expansion valve, also known as a TXV. This controls the flow of refrigerant through your AC unit. If this malfunctions then not enough refrigerant will pass through the system and the coils. That will cause a freeze up. Some people also refer to a TXV as a metering device. Faulty Furnace or Blower Motor Frozen lines can indicate that the furnace or blower motor has quit....
How To Prepare Your Air Conditioning Unit For The Summer

How To Prepare Your Air Conditioning Unit For The Summer

Get Your Air Conditioning Unit Ready For Summer! There is more to owning an air conditioning system than just flicking a switch when it gets hot outside. It’s extremely important to make sure your unit is prepped and ready for the summer season. There are some very simple steps homeowners can take to ensure their air conditioner is working properly and efficiently throughout the entire summer. Make sure the unit is uncovered It is a good idea to cover your AC unit in the winter to protect from the elements of Mother Nature. However, there needs to be a careful approach to covering your unit. There is a need for constant air flow throughout the unit. Without that air flow, there could be a significant build up of rust. Covering a unit the wrong way can also trap moisture inside the unit. It is not recommended to use plastic to cover an AC unit as it could lead to a variety of problems. Check your breakers It may seem like a simple task, but there are many people who turn their breakers off in the winter and forget to turn them back on in the summer. Make sure everything is powered on correctly before you attempt to use your air conditioning unit. Make sure the air filter is clean A dirty air filter will lead to a host of problems. It could burn out your unit, cause your air conditioner to freeze up and even damage the condenser coils. It is recommended that the air filter be changed every year or as manufactures suggestion and this remains an integral step in...
My AC Is Not Cooling My House, What Should I Look For?

My AC Is Not Cooling My House, What Should I Look For?

A Few Simple Things to Check So the time has come when you turn on your air conditioning on a hot summer day and there is no cool air coming from your vents. This is the most obvious signs that there is a problem with your AC unit.  The task then becomes finding out the cause of that problem. Here are some questions homeowners can answer with a quick and simple check of their AC unit. to determine if they will need to call a professional for air conditioning repair. Is your air filter clean? Check your owner’s manual and find the location of your air filter. Take it out and gauge whether it is clean or not. That can be done by holding it up to the light. If you cannot see through the filter, then it needs to be changed. A dirty air filter can lead to a number of different problems. Are the batteries good in your thermostat? Go over to your thermostat that controls your air conditioning unit and check the batteries. Try out a new pair or use a battery tester to see if the current ones are still working. When was the last time you had your air conditioner serviced? If you cannot remember, then it is definitely a problem. Routine maintenance is recommended every couple of years and sometimes even more frequent depending on the make of your AC unit. Check your records for the last time your unit was serviced and examine any service recommendations that was part of that last maintenance. Is there ice anywhere on the lines or around the...
There Is Water Under My Boiler!

There Is Water Under My Boiler!

What Does That Probably Mean? A leaking boiler can immediately throw homeowners into a state of panic. But there’s not always the need to be thrown into such a state. First, you need to understand why your boiler system is leaking. Hot water boilers and steam boilers are both susceptible to leaks. A steam boiler is only filled about halfway with water. If there were more than that, it would be difficult to produce steam. And if a steam boiler is leaking, it is usually not a good sign. There is no pressure within a steam boiler as it contains only water inside. What should I be looking for? The first step in remedying this situation is to look for some obvious causes. That includes checking the sight glass and drain valves. Something more serious would be a faulty return line, which could have a hole, crack or actually become rusted through. Leaks in a return line are not uncommon. All of those problems can be fixed by replacing parts. When it comes to a leaking cast iron boiler, look for cracks. If you find one, it is not a good sign as cracks are not easily repaired. A cracked boiler generally means that it is time for boiler replacement instead of repair. Replacement is not necessarily the only option, at least for now. However, there are repair solutions. A product called ‘Hercules Boiler Liquid Stop Leak’ is sold at Lowe’s and other similar type of repair stores. This will provide a temporary fix to your cracked boiler and will work in both steam and hot water boiler systems....
My Boiler Is Running, But My Radiators Are Cold.

My Boiler Is Running, But My Radiators Are Cold.

A common complaint from homeowners is that their boiler is running, but their radiator is cold. That means there is no heat circulating through the house. While most problems with a boiler do need to be handled by professionals, there are some issues that homeowners may be able to fix themselves. To understand the exact problem, one must first understand that there are two types of boilers.   Different types of boilers mean different potential problems. The first type of boiler is a hot water circulated type of boiler. This has water running from the boiler all the way up to the highest point of the home. The second type is a steam boiler, which sends steam through the radiators that could range up to three or more stories off the ground. In a hot water circulated boiler, there needs to be a certain amount of pressure to get that water a few stories up. For every pound of pressure, water is lifted two feet. That means 20 pounds of pressure would raise the water 40 feet. A common problem is that there is not enough pressure. Should that not be the case, the circulator, which circulates the water throughout the house, may be malfunctioning. There could also be an issue with the controls as they may not be turning on the circulators. Sometimes the problem isn’t with the water. Another possibility would be that the boiler is air locked. In water boilers, there are parallel piping and series piping systems. A remedy would be to purge the air out in both those types of piping. Homeowners could fix this...
How to Understand Furnace Efficiency Ratings

How to Understand Furnace Efficiency Ratings

Better Efficiency Means More Savings Furnace efficiency ratings differentiate between the good, the better and the worst of furnaces. Better efficiency means more savings, especially over a long term basis. If you are considering replacing your furnace, it is helpful to understand what the ratings mean. Keep in mind, however, different fuels carry different efficiency ratings. This is known as your Annual Fuel Utilization Rating or AFUE. These ratings tell you how much money you will save or spend on your energy bills. Gas furnaces are common in homes, with the best efficiency ratings reaching as high as 98%. The low end for gas is down around 82%. Coincidentally, 82% is the average efficiency rating for an oil furnace. Sometimes there can be 30 to 50% savings on fuel bills when dealing with a gas furnace. Oil furnaces could see a boost of 10 to 20%. Oil has not made as much progress as gas because it is not considered to be as much of a clean burning fuel. An older gravity furnace, commonly found in urban areas, is not always equipped with a blower. These often generate 60-70% efficiency at best. By replacing it with a newer model, which can get up to around 92 % efficiency, the savings will be quite noticeable on your energy bill. Propane is pretty much the same as natural gas. It can range from 92 to 97% efficiency. An upgrade on your propane furnace usually sees a savings of around 20 to 25% efficiency. An electric furnace uses a toaster coil so there is not much to improve on except for the...
How Often Should Your Furnace’s Air Filter Be Changed?

How Often Should Your Furnace’s Air Filter Be Changed?

How do I know when I should change my air filter? Regularity is important when it comes to checking and changing the air filter on a furnace. Before you realize that an air filter needs to be changed, you need to recognize that it needs to be changed. It is recommended that an air filter be checked monthly to keep it working proficiently. Routinely performing maintenance on your furnace will save money on furnace service later on. Some air filters will come with a manufacturer’s recommendation on how often it needs to be changed. Follow those directions and you shouldn’t encounter any problems. Some will recommend changing every three months while others may be more frequent. What should I look for when I check the air filter? When it’s time to check your air filter, there are certain things to look for. Pull out the air filter and hold it up to a light. This will show you just how dirty your air filter has become. If the filter is not letting any light through, then it needs to be changed. Changing it can be done easily by following a few simple directions. Generally there is an arrow on every filter and the arrow points in the direction of the air flow. A lot of the filters will also have a reinforcement on one side of the filter. So when the filter starts to get loaded up or dirty, the reinforcement will keep it from getting sucked into the furnace. Also remember to turn off the furnace before changing the air filter. If the furnace remains on, it will...