If the AC isn’t cooling your home, you might need an air conditioning repair. There are several causes that could indicate a problem with the cooling cycle or the compressor.

The first thing a technician will do is check the thermostat settings. They will also check for a tripped circuit breaker and clear the debris from around the outdoor unit. Contact AC Repair Round Rock TX for professional help.
Your thermostat does far more than simply display a number. It communicates with your HVAC system to ensure that the equipment is activated and that it’s running when needed. For that reason, a faulty thermostat can throw off your entire AC system. Understanding the warning signs can help you keep your home cool and avoid costly AC repairs.
If the settings you select don’t change the temperature in your home, a thermostat may be malfunctioning. The problem could be that the thermostat is not able to communicate the new setting to the HVAC unit, or it might have a sensor issue. Thermostats have a lifespan of about 10 years, so if yours is nearing or past this limit, it’s time to consider replacing it with a more dependable model.
A faulty thermostat can cause your air conditioning system to overwork and wear down quickly. It can also lead to erratic indoor temperatures and a high electricity bill. Fortunately, there are several easy fixes that can correct these issues.
Replacing batteries, ensuring proper connections and cleaning the unit can all make it function more effectively. However, if the problem persists or you’re unsure of what’s wrong, it’s best to call in a professional. Trying to fix low-voltage wiring or opening the thermostat panel comes with risks and may void your equipment warranty.
Other common problems with thermostats include ghost readings, miscalibration, and short cycling. Ghost readings occur when your thermostat’s sensors are a bit off, meaning that they’re registering a temperature in the room that doesn’t exist. This can be caused by a variety of reasons, including an outdated thermostat, improper positioning, or direct sunlight.
A faulty thermostat can be a frustrating problem for any homeowner, but identifying the problem early is important for maintaining your AC unit. Knowing the warning signs can help you identify when it’s time to get an AC repair in Carrollton and avoid more expensive issues down the line. For your comfort, we recommend contacting us to schedule an AC repair. Our experienced team can diagnose the problem and provide the needed repairs to restore optimal performance.
Loose Electrical Connections
Electrical problems are one of the most common reasons for AC system shutdowns and poor indoor air quality. They may seem minor at first, but they can quickly cause significant damage if left unchecked. If you’re noticing warning signs, like frequent breaker trips or rattling sounds, call an AC repair technician in the Bethesda area for quick and effective service. Addressing the problem early prevents long-term damage and saves you money.
The power supply, circuit breakers, control boards, and wiring of an HVAC system all play a critical role in how well the unit operates and functions. Getting a basic understanding of these components and knowing some common issues helps homeowners recognize when it’s time to contact a professional for AC repair.
Loose electrical connections, a common issue in many homes, can occur when wires aren’t properly tightened or are faulty in some way. This can lead to a variety of problems, including intermittent power and strange smells that might suggest a fire is occurring.
It’s important to note that when working on an electrical system, you should always turn off the power at your home’s main panel before beginning work. This will ensure that you’re not accidentally electrocuting yourself, which can be incredibly dangerous.
While it is not uncommon for DIYers to attempt repairs on their own, you should only trust this type of work to a certified electrician. Using the wrong tools, making mistakes, or using cheap parts can cause serious, life-threatening damage. It’s also important to note that most electrical problems in HVAC systems are caused by neglect and lack of proper maintenance.
All AC systems produce some vibration when they run, but excessive vibration can stress components that aren’t designed to move and flex. This can lead to refrigerant leaks, electrical shorts, and loose or broken components. In severe cases, it can even lead to carbon monoxide leaks, which are odorless, tasteless, and poisonous in high concentrations. Preventative maintenance, professional installation, and regular inspections help prevent these issues from happening in the first place. They can also help catch them when they do, saving you from expensive damage and potentially hazardous situations.
Clogged Drain Line
While changing air filters and clearing debris away from your AC unit are good first steps to taking care of your home AC system, a routine maintenance schedule should also include cleaning the drain line. Dirty and clogged drain lines can lead to water leaks, mold growth, and musty odors in your vents.
Located on the outside of your air conditioner near the indoor unit, the drain line is responsible for transporting condensation from the air conditioning system to the condensate pan. This small PVC pipe is prone to blockages, especially in humid climates, due to increased condensation levels. A clogged drainage line can lead to water backups, which will shut down the air conditioning system and result in costly repairs.
If you suspect a clog, turn off your air conditioning system for safety purposes and locate the drainage line access point. Then, remove the cap from the drain line to begin the cleaning process. Always wear gloves during this step to avoid coming into contact with any potentially contaminated drainage fluid or water that could be trapped in the line.
The next step is to use a wet/dry vacuum or plumber’s snake to dislodge any debris clogging the drainage line. Be sure to avoid using a standard carpet vacuum for this task, as the high suction power can damage or break the drain line. After removing any accumulated debris, replace the cap and then test your AC system to ensure it is cooling properly. If you experience further issues, contact a professional HVAC technician for help.
For mild clogs, you can try using the plunger method. But if you are experiencing puddles of water around your AC unit or smell musty odors in your vents, it’s time to call in the professionals! A professional HVAC technician can quickly diagnose and fix the problem with the drain line. They’ll know exactly what to look for, and can offer tips on how to prevent it from happening again in the future. The HB Home Service Team is happy to help with all your heating, cooling, and plumbing needs!
Failed Contactor
An air conditioner’s contactor is an unsung hero that powers the compressor and fan. However, if the contactor fails your AC system can grind to a halt. This guide will explain what causes contactor failure, walk you through DIY troubleshooting steps, and provide expert tips on preventing future breakdowns.
The contactor is an electromagnetic switch that connects the compressor and condenser fan to the power supply. When your thermostat calls for cooling, the contactor’s coil energizes, pulling metal “contacts” together to send power to the components. Once your thermostat reaches your set temperature, the contactor disconnects and the circuit is broken. Without a working contractor, your AC won’t turn on or off, or may run erratically.
There are many reasons why a contactor might fail, including overheating, voltage problems, and even physical damage. Symptoms of a failing contactor include buzzing or humming sounds that aren’t normal for the unit, as well as intermittent starts and stops.
To check a contactor, first, make sure that the power to the unit is turned off by switching off the breaker or circuit panel. Then, remove the cover from your AC unit and look for a black rectangular object with colored wires connected to it.
Once you’ve located the contactor, visually inspect it for signs of physical damage like charring and pitting. You can also use a multi-meter to test its condition. Touch probes to the contactor’s coil terminals—a good contactor will emit a click when power is applied. A dead coil will read infinite ohms, meaning that there’s no continuity.
The best way to prevent contactor failure is to perform regular maintenance. Clean the coil annually using compressed air, and test its voltage regularly to ensure it’s at a safe level. This will help to prevent electrical arcing that can damage the contacts. It’s important to note that electrical work should only be conducted by a licensed HVAC professional, so always seek the services of a professional if you aren’t comfortable performing this task. In addition, be sure to invest in the proper tools before starting any electrical maintenance tasks. These should include a screwdriver, a multimeter, and insulated gloves. These can be purchased at most home improvement, hardware, and electronics stores.