All of us have been there. You are trudging through the heat of a hot afternoon or sweating through a night. Your air conditioner not cooling is not comfortable, but it can happen. And it won’t happen in the dead of winter when it does. Even after lowering the thermostat several times, the air conditioner won’t blow chilly enough air on what will be the warmest day of the summer. More than just the AC unit or heat pump outside your house makes up an air conditioning system. An interior air handler unit (furnace or fan coil), an evaporator coil, an air filter, a thermostat, and copper tubing (refrigerant lines) are just a few of the many mechanical parts found in typical split-system air conditioners.
The question “Why is my air conditioner not cooling the house?” has various replies. But don’t worry. You don’t need to replace your entire AC system just because your system isn’t cooling. Contact All Air Systems since they provide the best repair and air conditioning replacement in Cockeysville, MD.
The thermostat is inaccurately set.
Check the thermostat settings when your house gets hotter than usual. Make sure the setting is “cool.” You should check the thermostat settings to see if the thermostat is set to cool. Wait a few minutes after the system turns on before checking to see if cool air is blowing from the vents. Checking the air filter is the next step in troubleshooting if not.
Dirty air filter
There can be an air filter in or near your air conditioning system’s indoor air handler unit. As airborne particles reach the air handler unit, the filter traps dirt, dust, and other airborne particles. It can help keep the air in your home cleaner and keeps the system’s internal parts running more effectively. A clogged air filter can compromise your home’s ability to stay cool. In more severe circumstances, it may result in a full system shutdown.
Locate your system’s air filter, shut off the system, remove the filter, and check if you still don’t have cool air once your thermostat has passed inspection.
Blockage in-unit condenser
Your central air conditioning system most certainly has an outdoor condenser unit. A substantial external coil covers most of the condenser unit’s exterior. The coil comprises several thin metal “fins” packed closely together. A blocked or clogged condenser coil may cause your air conditioner to run but fail to reduce the temperature inside. To remove heat energy from your home, the condenser fan pulls air into the outdoor unit through the condenser coil. Between the fins, dust, grass, and other airborne material can assemble and jam the coil. By removing any dirt, carefully vacuuming the coil with a brush attachment, or gently rinsing with a hose, you can try to clean the coil. You should call a professional if your system is still not cooling.
Damage to the heat pump
Your outdoor unit could occasionally be a heat pump. Like an air conditioner, a heat pump has some internal differences that enable it to cool and heat your house. It performs cooling operations identically to the condenser unit of an air conditioning system. It is susceptible to the same problems, such as dirty, clogged, frozen coils, refrigerant leaks, compressor troubles, etc. Check the thermostat settings, the air filter, and the condenser unit for the previously mentioned problems if your heat pump system isn’t cooling. Call your neighbourhood HVAC expert if everything is in order and you’re still sweating indoors.
A freezing evaporator coils
Your central air conditioning system’s indoor unit will have an evaporator coil. The evaporator coil is outside the furnace if your indoor unit is a furnace. The evaporator coil is located inside the fan coil cabinet if the indoor unit is a fan coil (typically as a component of a heat pump system). The evaporator coil extracts heat energy and humidity from warm indoor air. After that, cooler air circulates in your home. Evaporator coil freezing symptoms include:
The copper refrigerant tube coming from the coil cabinet has developed frost.
- Insufficient cooling
- Increased utility costs
- Near your indoor unit, there are a lot of condensates draining
- In difficult situations, frost may form on the outdoor unit or the outer refrigerant tubing.
You should consult an HVAC expert to resolve problems with a frozen evaporator coil because accessing the evaporator coil on your own can be challenging.