What Is a Thermostatic Expansion Valve?
One little-known but extremely important component in home cooling systems is the thermostatic expansive valve. Found just at the evaporator inlet, this valve regulates the flow of refrigerant through the system. When too much refrigerant is allowed to move through the evaporator, its coils will freeze over. Conversely, when there’s too little refrigerant, the evaporator can overheat and cause accelerated air conditioner wear. If your AC system is having a hard time keeping your Martinsville, Virginia, home cool, a damaged thermostatic expansion valve (TEV) could be the reason why. When the AC System Blows Warm Air, the TEV May be...
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