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....
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...