Why Isn't My A/C Working? Most Common Issues


There are many reasons why your A/C might not be functioning. When the summer comes along, however, you don’t want anything preventing you from cooling down your home. If you have any issues with your heating and A/C, you’ll need them repaired as quickly as possible. A faulty A/C unit can be repaired by HVAC experts, and they can help you get to the root of the problem. Here are a few of the most common complications:


Broken outdoor fan


If your A/C isn’t working, check your outdoor unit. The fan should be spinning smoothly and at the correct speed. If it isn’t, try resetting the fuse box, and if this doesn’t work there could be a problem with the motor. Debris or corrosion may have caused the motor to get stuck. Another issue could be that the start capacitor isn’t functioning. In either of these cases, it’s advisable to speak to a heating and A/C technician rather than trying to repair it yourself, as this could be dangerous.


Frozen coil


Another common problem is a frozen evaporator coil. There are a couple of tell-tale signs of this. One is moisture or condensation at the bottom of the air handler. There could even be ice around the coolant lines. These are the copper tubes at the back of your A/C unit. You can try to thaw your A/C unit yourself by switching it off for 24 hours, but it’s likely that this issue will reoccur. Ice can form due to a problem with the airflow and this needs to be checked by a professional.


Faulty wiring


Faulty wiring could result in your A/C stopping and starting, the fuse blowing, or the system shutting down completely. If your air conditioning stops working randomly then this may be the cause. Inspect your unit for exposed or frayed wire. There could also be faulty wiring in the thermostat. If you suspect the problem is the wiring you should contact a heating and A/C expert immediately. There could also be a number of mechanical issues such as one of the components like the capacitor or compressor breaking down. It’s essential to have these checked by a professional as they may need replacing.


Low refrigerant


If your A/C is low on refrigerant there are several side effects. Perhaps your A/C unit is blowing warm air, or you hear a hissing or gurgling sound. Low refrigerant can also cause the coil to freeze. If you’re concerned your refrigerant is low then have a heating and A/C technician check for a leak, as this is the most common reason. The leak needs to be repaired before you can top up the refrigerant.


The hotter months can be difficult without properly functioning A/C. It’s important to be proactive and have any problems checked out by a certified HVAC technician. Find out more about common issues with yourExternal link opens in new tab or window heating and A/C, and how Bear A/C & Heating can help you resolve these issues ASAP!