In case your central air conditioning unit instantly has little to almost no cooling power, you could check out some common problem areas and maybe fix the problem yourself instead of hiring an air conditioning repair technician. A home air conditioning unit has five primary elements:
- Expansion valve
- Evaporator coil
Apart from that, the thermostat is the brain of the heating and cooling system. This part of the unit could also be a problem at times.
Air Conditioning Unit Won’t Turn On
If you can’t get the air conditioning unit to activate at all, the most common issues lie with a blown fuse or a tripped circuit breaker, a faulty thermostat or an internal switch being off.
- Make sure that the thermostat is not set to heat or off but in the cool position.
- Make sure that the thermostat is set below the current room temperature.
- Make sure that the 240-volt circuit breaker that is controlling the heat pump or separate air handler are placed in the on positions. In case a fuse is blown or a circuit breaker has tripped, you should reset the circuit breaker or change the fuse. When you reset the breaker or perhaps replace the fuse and they blow or trip again, stop and call an air conditioning contractor like Ductworks Heating and Cooling Inc., as you might have a more complicated issue.
- Make sure that all switches in and around the air conditioner are placed on the on position and that includes the external safety switch, which is commonly on an outside wall next to the condensing unit.
- Inspect the condensate overflow tray for any excess water. There are instances when this tray is installed in the remote air handlers using condensate collection rather than a condensate drain. If using a tray, there might be a sensor switch that would turn the unit on if the water accumulates in the tray.
- Be sure the blower door in the air handler is closed securely.
Poor Airflow From Cooling Vents In Rooms
Poor airflow is commonly caused by a filthy air filter or ductwork that has become crimped, blocked, or even disconnected.
- Be sure that the air filter in the air handler is clean. In case it is dirty, change or clean the air filter.
- Inspect the ductworks visually to make sure that it hasn’t become crimped or disconnected. This includes ductwork that might be in the basement, attic, or crawl space areas. Connect or repair ductwork as required.
- Inspect the register dampers in the rooms’ vents to ensure that they are open completely.
Insufficient Cooling With Long Compressor Cycle
Insufficient cooling along with a long on cycle of the compressor could be an indication of a worn out compressor that may have lost its capability to compress the refrigerant. It is highly recommended to contact and North Myrtle Beach air conditioning repair technician right away.
Call DuctWorks Heating and Cooling, Inc. if you have problems with your central air conditioning system.
DuctWorks Heating and Cooling, Inc.
303 Main St
North Myrtle Beach, SC 29582