Summer is here, and the last thing you want is to suffer through a hot day without air conditioning. If your AC is not turning on, it can be a frustrating experience. There are many reasons for an air conditioner not turning on; some are easier to fix than others.
If you’re in Los Angeles and need professional help, don’t hesitate to call the experts at Dr.Ductless Heating & Cooling. Our team of certified technicians provides Mini Split AC Installation in Los Angeles, and we have the expertise to fix any issue with your air conditioner. If you’re experiencing any of the following problems, give us a call, and we’ll be happy to help. To help you get to the root of the problem and find a solution,
We've Compiled a List of 18 Reasons your AC Isn't Turning on and How to Fix Them
- Power Issues
The power supply is the first thing you should check if your AC isn’t turning on. Ensure the unit is plugged in and the outlet is functioning properly. If the outlet is not working, then reset the circuit breaker or replace the fuse. If the outlet is working, but the AC still won’t turn on, the problem may be with the unit’s wiring.
- Thermostat Problems
The thermostat is the control center for your air conditioner, so it’s essential to make sure it’s working properly. Check the thermostat’s batteries and ensure it’s set to the correct temperature. If the thermostat is working, but the AC won’t turn on, there may be a problem with the wiring between the thermostat and the AC unit.
- Dirty Air Filter
A dirty air filter can prevent air from flowing freely, causing the AC to shut down. To check the air filter, remove it from the unit and hold it to a light. If you can’t see through it, it’s time to replace it.
- Refrigerant Leaks
If the AC refrigerant is low, it won’t turn on. This is because refrigerant is what makes the AC cool the air. A leak in the refrigerant system can cause the AC to lose refrigerant and stop working.
- Blocked Evaporator Coil
The evaporator coil absorbs indoor heat from the air, and a blocked coil can cause the AC to shut down. To check the coil, turn off the power to the AC, and remove the access panel. If the coil is dusty, clean it with a soft brush.
- Faulty Compressor
A faulty compressor can cause the AC to stop working. If the compressor is not working, the AC won’t turn on.
- Wiring Issues
If the AC isn’t turning on, it could be due to wiring problems. Check the wiring between the thermostat and the AC unit, and make sure all connections are secure.
- Bad Capacitor
The capacitor stores energy and releases it to help the compressor start. If the capacitor is bad, the AC won’t turn on.
- Faulty Relay
The relay is responsible for starting the compressor, and a faulty relay can cause the AC to stop working.
- Broken Fan
The fan is responsible for circulating air, and a broken fan can cause the AC to shut down. To check the fan, turn off the power to the AC, and listen for any unusual sounds. If you hear a loud noise or the fan isn’t moving, the fan may be broken and need to be replaced.
- Frozen Evaporator Coil
If the evaporator coil is frozen, air won’t be able to circulate properly, causing the AC to shut down. To fix this, turn off the AC and let it thaw completely. Once it’s thawed, check the air filter and clean or replace it if necessary.
- Clogged Drain Line
The drain line removes condensation from the AC unit, and a clogged drain line can cause water to build up and damage the unit. To fix this, locate the drain line and use a bent coat hanger to clear any blockages.
- Low Voltage
If the voltage to the AC is too low, it won’t turn on. To check the voltage, use a multimeter to measure the voltage at the outlet where the AC is plugged in. If the voltage is too low, have an electrician check the wiring.
- Tripped Circuit Breaker
A tripped circuit breaker can cause the AC to stop working. To fix this, locate the circuit breaker for the AC and reset it. If the circuit breaker trips again, there may be a problem with the wiring or the AC unit itself.
- Malfunctioning Contactor
The contactor is responsible for turning the AC on and off, and a malfunctioning contactor can cause the AC to stop working. If you suspect a problem with the contactor, call our professional for repairs.
- Bad Motor
The motor is responsible for running the fan and the compressor, and a bad motor can cause the AC to stop working. If you suspect a problem with the motor, call our professional for repairs.
- Obstruction in the Ductwork
Obstructions in the ductwork can prevent air from flowing properly, causing the AC to shut down. To check for obstructions, inspect the ductwork and remove debris or blockages.
- Old Age
Finally, if your AC is over 10 years old, it may be time to replace it. An older AC is more likely to break down and be less efficient, costing you more energy bills.
In conclusion, there are many reasons your AC may not turn on, and some are easier to fix than others. If you’re in Los Angeles, the team at Dr.Ductless Heating & Cooling can help with Mini Split AC Installation and repair. Call us today, and we’ll help you get your AC up and running again. Don’t forget to check out our Google Reviews for customer feedback, and follow us on Facebook, Twitter, and YouTube for the latest news and updates. We have been awarded the 2021 Neighborhood Favorite by Nextdoor and the 2020 Super Service Award by Angie’s List, so you can trust us to provide the best service possible.