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Troubleshooting Tips: Why Won’t My AC Turn On?

# Troubleshooting Tips: Why Won’t My AC Turn On?

When the temperature starts to rise and your air conditioning (AC) system won’t turn on, it’s easy to become frustrated. However, with a little guidance and research, you can troubleshoot what’s causing your AC to malfunction. In this article, you will find tips for troubleshooting and understanding why your air conditioning system isn’t turning on.

## Is Your Thermostat Working?

The first thing to do is to make sure that the issue isn’t with your thermostat. Check if the thermostat is set properly and confirm the display is functioning. If the thermostat display is blank, then there could be a power issue that needs to be resolved.

If the thermostat is powered on, then determine if it’s a digital or old school model. If it’s a digital thermostat, then switch it to the cooling mode. If it’s an old school model, check the switch settings. Make sure the switch is not stuck in between off and cooling.

## Check the Power

The next step is to check your AC unit’s power. The majority of the AC units make their own power. Meaning the power comes from their own power source. This power source can come from a fuse or a circuit breaker. To check your unit’s power, first make sure the power switch on the AC unit is turned on.

If the switch is on and you’re still not getting any power, then check the circuit breaker. It’s possible that the circuit has tripped due to a power surge. Reset the circuit breaker or surge protector and see if that resolves the issue.

Another potential power issue could be the wiring. If the wiring is broken or not properly installed, then it can cause power issues. Make sure to inspect your unit’s wiring, if you find signs of wear or degeneration, they should be replaced.

## Inspect the Air Filter

If your unit’s power is functioning properly, then take a look at the air filter. The air filter gets clogged with dirt and other debris, it can restrict air flow and reduce your AC’s efficiency. Swap out your air filter for a new one and see if that resolves the issue.

## Consult a Professional

If you’re still not sure what’s causing your AC unit to malfunction, it’s always wise to consult a professional. Many air conditioner repairs require the expertise of a certified HVAC technician. When in doubt, contact a local AC repair and get it checked by an expert.

## Conclusion

Learning why your AC unit isn’t turning on is easier than you think. Thanks to the tips above, you can easily diagnose and troubleshoot the worrisome issue. If you’re still having problems and need help, then consider calling a local and reliable appliance repair at (866) 516-1222. If you wish to read more information about Why won’t my AC turn on? then click here.

Troubleshooting Tips: Why Won't My AC Turn On?
Troubleshooting Tips: Why Won't My AC Turn On?
Troubleshooting Tips: Why Won't My AC Turn On?

Why Won’t My AC Turn On?

Are you having difficulties with your AC unit turning on? The following preventive action recommendations will help avoid potential issues in San Diego.

Inspection and Maintenance

Regular maintenance and inspections should be completed to ensure your AC unit is working correctly and efficiently. A qualified HVAC or appliance technician can check for any potential issues, change the air filter, clean the condenser, check and clean the blower and motor, inspect the fan unit, and adjust the thermostat. This can prevent AC components from failing or causing further damage.


To ensure proper operation for your AC unit, check the circuit breaker that powers the unit. Make sure the breaker has been reset, or if necessary, replace the fuse in the breaker box if it’s not functioning properly. Your technician can verify that all cords, including the thermostat wires, are securely plugged in.

Air Flow

Clear any obstructions around the outside condensing unit. Keep the area clear of any debris or vegetation that might block the airflow. This will help your AC unit run efficiently.


Thermostat settings can affect the performance of your AC unit. Clean the thermostat contacts with a soft cloth, and replace the batteries if needed. Check to make sure the temperature control settings are configured properly and verify that fans are set to the “auto” setting.

Call for Professional Help

If you are still having difficulty with your AC unit, it’s recommended to contact a reliable service provider such as Local Reliable Appliance Repair in San Diego at (866) 516-1222 for further assistance. Proper inspection and maintenance can help maintain and extend the life of your AC unit, and improve energy efficiency. By knowing the common symptoms of an AC system that needs service, you can address problems quickly and reduce the likelihood for additional damage.

Repairing an Air Con that Will Not Turn On – San Diego Area

The average cost of repairing an air conditioning unit that will not turn on depends greatly on the exact issue you are experiencing. A minimum repair cost in the San Diego area is likely to be around $100, though more complex repairs or installations can cost up to $1000 or more.

Potential solutions can vary widely, and will usually involve replacing malfunctioning parts. Commonly, these may include an AC unit’s controller board, capacitor, contactor, or compressor. Oftentimes, the cost of materials is included in the estimate from the contractor.

If you require repair or installation services for your air conditioning unit, it is advisable to call a reliable and licensed contractor. We recommend Local Reliable Appliance Repair, who have an excellent reputation in the San Diego area.

If you call them, be sure to explain the exact issue you are experiencing, to ensure they can provide the most accurate estimate and best advice.

For further guidance, Local Reliable Appliance Repair can be contacted at 866-516-1222.

Troubleshooting Why Won’t My AC Turn On?

If you’ve got a malfunctioning AC unit and you’re wondering why it won’t turn on, you need reliable, knowledgable professionals who can get to the bottom of the problem. That’s why you should contact Reliable Appliance Repair. They’re a local San Diego-based business who offers same-day service for HVAC and appliance repair and installations.

Reliable’s team of highly-trained technicians has at least five years of experience in the field. With their experience and expertise, they can quickly diagnose and resolve any issue you have with your AC unit, from why it won’t turn on to more intricate problems. Plus, their pricing is both fair and affordable.

Not only is Reliable experienced, but they’re also licensed and insured to provide peace-of-mind that your home and appliances are properly cared for. When you need fast and reliable AC repairs, contact Reliable Appliance Repair at (866) 516-1222 and trust that you’re getting quality local service.

FAQ: Troubleshooting Tips- Why Won’t My AC Turn On?

Q: Why won’t my AC turn on?

A: Several reasons could cause this, such as low refrigerant, a dirty air filter, clogged condensate drain line, excessive debris, damaged compressor, or defective fan motor.

Q: How do I check for a low refrigerant level?

A: If your AC is low on refrigerant, it will produce weak airflow, poor cooling, and possibly intermittent temperatures. You can look for a leak in the refrigerant lines or check the pressure levels inside the AC.

Q: What if I have a dirty air filter?

A: A blocked air filter leads to airflow restrictions, thermostat problems, and other AC system issues. You should regularly check and clean the air filter, especially during the summer.

Q: What can I do if my condensate drain line is clogged?

A: When the condensate drain line is blocked, the evaporated moisture will build up and cause the AC to shut off. Cleaning the clogged line and replacing any pipe fittings may resolve the issue.

Q: What is the consequence of excessive debris?

A: Too much debris can cause extreme heat to the unit, resulting in the system no longer cooling. Clean the coils and check for any improperly sealed openings that lead to the outside.

Q: What could be the potential problem with the compressor?

A: The compressor is the heart of the AC. If it’s damaged, it can prevent the system from cycling correctly and won’t turn on at all. Have a professional work on the compressor.

Q: What can I do if the fan motor isn’t working?

A: The fan delivers cool air and is a vital component of the AC. A broken fan motor may be the cause of your AC not turning on. Disconnect the power and check the fan capacitor and wires for any signs of corrosion, then replace the fan motor.

Call Local Reliable Appliance Repair at (866) 516-1222 if you need help troubleshooting why your AC won’t turn on.