Your air conditioning unit has a lot of parts. And if you have a commercial HVAC system, it is even more complex.
And if one of these parts fails, the performance of your AC system gets compromised. Out of the blue, the air conditioning can reduce its capacity to keep the indoors cool. Those days are the most suffocating, especially during the afternoon when the sun is burning.
Have you ever been in a situation where you adjust your thermostat, hear the familiar click, but then silence? There was no hum of the AC unit starting, no cool air blowing through the vents – just a puzzling quiet.
This scenario can be confusing and frustrating, especially on a hot summer day. This post will explore why and how to troubleshoot when the thermostat clicks, but the AC does not turn on.
First, let’s understand what the “click” means. In most thermostats, the click is a mechanical sound that occurs when the thermostat sends a signal to the AC unit to begin cooling.
It indicates that the thermostat is working and is trying to communicate with the air conditioning system. So, if you hear the click, your thermostat is likely not the issue.
When your AC unit doesn’t respond to the thermostat’s signal, there are several potential issues:
Ensure that your AC unit has power. Check your circuit breakers and look for any tripped switches. Sometimes, the solution can be as simple as flipping a switch.
Faulty or loose wiring between your thermostat and AC unit can interrupt the signal. Inspect the wiring if you are comfortable doing so.
If you don’t know how to check this device, call the professional team of AAC Heating and Air INC.
A heavily clogged air filter can cause your AC unit to overheat and shut down. Regularly replacing or cleaning your air filters can prevent this.
This is one of the most common deficiencies we find in the air conditioners of our clients. Most people take air conditioning for granted. For instance they forget giving maintenance, and that’s is when the air starts to malfunction, and give homeowners a hard time.
And also, clogged, dirty air filters will drastically reduce indoor air quality, making people with allergies to worsen in a trice.
You can avoid all these inconveniences by keeping on top of your HVAC maintenance.
Low refrigerant levels, often due to leaks, can lead to AC malfunction. This is a more severe issue and typically requires professional attention.
Poor airflow and other factors can cause your evaporator coils to freeze, preventing the AC from turning on. Turning off the unit and allowing the coils to thaw can help, but addressing the underlying issue is important.
Before you call a professional, there are a few things you can do:
Sometimes, resetting your AC system and thermostat can resolve the issue. Turn off both power, wait a few minutes, and then turn them back on.
Ensure that your thermostat is set to “cool” and that the set temperature is lower than the current room temperature.
If the filters are dirty, replace or clean them.
Check for any visible signs of damage or obstruction around your external AC unit.
If the above steps don’t resolve the issue, it might be time to call the professionals at AAC Heating and Air INC.
Our HVAC technicians can handle complex problems like refrigerant leaks, electrical issues, and component failures.
To avoid future issues, regular maintenance of your AC system is vital. This includes cleaning or replacing air filters, scheduling annual professional check-ups, and ensuring the area around your external unit is clear of debris.
A thermostat click without the AC turning on can be a symptom of various issues, ranging from simple fixes like a tripped breaker to more complex problems like a faulty compressor.
By understanding the potential causes and taking proactive steps, you can either resolve the issue yourself or make an informed decision to seek our professional help. Regular maintenance is the best way to keep your cooling system running smoothly and efficiently.