There's nothing worse than hearing your AC unit grind to a halt in the middle of summer. When this happens you should call an HVAC contractor sooner rather than later because their schedules can get booked up fast in the warmer months.
You'll probably be tempted to investigate the problem before they get there. A good rule of thumb is to start examining your unit from the outside, then work your way in. If you're trying to locate a problem in your HVAC system, check out these tips:
Check the Power
AC units are usually connected to their own breaker, so it is possible for your unit to go out without affecting the rest of your home. Identify the circuit breaker for your unit to make sure it hasn't tripped. If it's switched on, switch it off for about 30 seconds. You should also check to see if the batteries in your thermostat are working.
Inspect the Registers
Someone may have accidentally shut your vents, preventing air from getting through. Make sure all of your vents are open and not being blocked by furniture, curtains, or a pet. While you're at it, you should also vacuum clean the vents to ensure the cleanest and fullest airflow.
Clean the Condenser
After you've ruled out all of these external issues, you can start to look inside of your unit for answers. Even if your unit isn't working, make sure that it's switched off just in case. Use a dry/wet vacuum to suck out any debris that has accumulated inside. You can also take your hose and spray away any gunk that has developed.
Check the Furnace
If nothing has happened, your furnace might actually be the problem. Set your temperature to a few degrees below room temperature, enough for you to notice a difference. In a minute or two put your hand over the registers to see if it's blowing hot air. If it isn't, reset your unit and try again.
Still nothing? Then it's time to call the best heating and air conditioning contractor you can find to get a professional opinion on your unit. Your HVAC contractor is specially trained and has years of experience in identifying problems with heating, AC, and HVAC interconnectivity. Although you may be able to correct the symptom of a problem, an HVAC contractor can identify the root. Letting problems go un-repaired can only leave you uncomfortable and with a more costly and time consuming issue later down the line.
Contact the best heating and air conditioning service for more information and assistance.