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Causes Of A Broken Hvac Unit

Causes Of A Broken Hvac Unit

There are many reasons why an HVAC unit may stop functioning. The top five causes of a broken HVAC unit are a clogged filter, refrigerant leak, lack of maintenance, broken thermostat and sensor issues.

If the filter in your HVAC unit becomes clogged, the air conditioner must work harder to blow air through it. When the air flow is reduced, the unit may freeze up and stop working. You can check your filter by holding it up to the light.

If you can’t see through it, then the air can’t go through and you need to replace it. The filter needs to be changed monthly or less often, depending on the type of filter.

When the refrigerant level is lower than optimum, your unit may still blow air but it will not be cool. The cause of this is usually a refrigerant leak which may be caused by the vibrations of the unit.

Usually a leak occurs at the valve but it is sometimes difficult to find the source of the leak. A technician will need to be called to find the source and repair it.

Lack of maintenance is another reason many HVAC units fail. Your unit needs to be inspected and cleaned every year to avoid future breakdowns. When your HVAC unit is working properly and efficiently, not only will the number of service calls decrease but you will save money on energy costs.

The thermostat controls the system and tells it what to do. If it is not working properly, then the system can’t work properly either. Before calling a technician, check to see if it is turned on and at the proper setting as sometimes it gets turned off.

The sensor controls the cycles of your unit to keep the right temperature level. If it is not working, the unit will not know when to come on and when to shut off. Of course, if the unit is turning off and on often, it will use more energy.

Sometimes the problem is in the location of the sensor. If it is in a small room with the door closed, it would only keep that room the correct temperature. The sensor needs to be in the largest room and near the middle of the house.

With the help of Plumb Level, you can take better care of your Brenham HVAC unit. Just call (979) 200-6674​ today, and feel at ease in your home.


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