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AC Thermostat Not Working? Here’s What to Do

# AC Thermostat Not Working? Here’s What to Do
The thermostat helps regulate the temperature of your air conditioner (AC) unit. When it malfunctions, you might experience an air conditioning unit that runs too frequently or doesn’t turn on at all. It’s important to quickly have your AC thermostat diagnosed and repaired so that you can keep your home comfortable. But what should you do when your AC thermostat isn’t working?

## Signs That You Have a Malfunctioning Thermostat
When your AC thermostat becomes damaged, it may struggle to accurately measure the air temperature of your home. As a result, it’s important to be aware of the signs that indicate you have a malfunctioning AC thermostat.

### The Unit is Heating Up Too Frequently
If you find that your AC unit is cooling on and off too often, it may be a sign that your AC thermostat isn’t working properly. Oftentimes, when the thermostat is broken, it fails to accurately inform the air conditioner when to turn on and off. As a result, the air conditioner is running more often than necessary and could drive up energy costs.

### The Unit Isn’t Responding to Adjustments
It’s natural to adjust your thermostat when the temperature isn’t quite right. If your AC thermostat is malfunctioning, then you may find that the temperature readings are inaccurate or that the AC unit isn’t responding to your adjustments.

### The Unit is Powering On and Off On Its Own
A common sign of a failing AC thermostat is a unit that turns on and off without being adjusted. If the temperatures are fluctuating invasively, then it’s likely that you have a malfunctioning thermostat.

## What You Should Do If You Suspect a Malfunctioning Thermostat
If you suspect that your AC thermostat is not working properly, it’s important to quickly diagnose and repair the issue. Here’s what you should do when you notice any of the symptoms mentioned above:

### 1. Check the Battery of Your Thermostat
Most thermostats require two AA batteries. If you haven’t replaced the batteries recently, then you should replace them and check if the issue persists. If it does, then there may be an issue with the wiring or a larger component.

### 2. Take a Look at the Wiring
If the issue is not due to outdated batteries, then you should check the wiring of your AC thermostat. If any of the wiring looks damaged, then you should call an HVAC technician to look into the wiring and potentially repair it.

### 3. Call a Local Thermostat Specialist
If all else fails, then you should consider reaching out to a local HVAC technician. A technician will quickly assess your thermostat and repair any mechanical issues that may be causing the problems.

## Conclusion
Your AC thermostat is an important part of your AC unit and helps to regulate the temperature of your home. If your thermostat isn’t working properly, it’s important to quickly diagnose and repair the issue. If you suspect an issue with the thermostat, you can start by checking the battery, the wiring, and eventually consulting with an HVAC technician. If you wish to read more information about AC thermostat not working, click here. If you’re in the San Diego area and need help, you can call Local Reliable Appliance Repair at (866) 516-1222 or click here for more information.

AC Thermostat Not Working? Here's What to Do
AC Thermostat Not Working? Here's What to Do
AC Thermostat Not Working? Here's What to Do

Preventive Action To Avoid AC Thermostat Not Working Issues

Avoiding an AC thermostat not working issue requires proactive maintenance and inspection. The following items are manufacturer recommendations and steps that any local appliance or HVAC technician can do to keep an AC thermostat functioning properly.


Regularly inspecting the thermostat is essential for troubleshooting and preventing malfunctions. It’s recommended to inspect both the inside and outside components of the thermostat including the display and all associated wiring. An indepth inspection should be performed at least once a year.

Battery Replacement

If a thermostat is powered by a battery, it’s recommended to change the battery every year to ensure proper operation.

Wire Cleaning

To avoid communication issues between the thermostat and the HVAC unit, it’s important to ensure that the wiring connections are clean and free of residue or other blockages.

Dust Cleaning

Dust buildup on the thermostat can cause issues, so it’s important to remove any dust buildup every two to three months if necessary.


Regularly programming the thermostat helps keep it running at optimal efficiency, so it’s recommended to make sure that the thermostat is correctly programmed according to the manufacturer’s instructions.

Call Local Reliable Appliance Repair

When all else fails, homeowners should seek additional help from a local, reliable appliance repair service. Contact Local Reliable Appliance Repair at (866) 516-1222 for more information about resolution and preventive maintenance that can avoid AC thermostat not working issues.

Average Repair Cost for AC Thermostat Not Working

Repairing an AC thermostat that isn’t working can range from simple to complex, so it’s best to contact a reliable appliance repair service. In San Diego, the minimum repair cost for a basic problem can range from $125 to $225 and the more complex repairs can cost from $195 to $325. Typically, repairs will include the labor charge, parts, and the cost of materials.

The necessary parts and cost of materials depend on the complexity of the problem. The more complex cases may entail larger parts, such as a new contactor, reversing valve, or air handler, which will increase the repair cost. Other factors that can add to the total cost include the contractor’s experience, the size of the unit, and any additional fees they might charge.

For the best advice and a reliable repair service, calling Local Reliable Appliance Repair at 866-516-1222 is recommended. They will inspect the AC unit, diagnose the issue, and provide a detailed estimate for the repair cost.

When it comes to AC thermostats not working, you need a reliable and experienced service provider. Reliable Appliance Repair of San Diego is the perfect choice for all your HVAC and appliance needs.

This family-owned local business offers same-day services to get your AC thermostat working quickly and smoothly. Their technicians are well-trained and have at least 5 years of experience in the field, so you can trust that your problem will be solved with ease. They also provide fair and affordable pricing for all their services.

Reliable Appliance Repair of San Diego is licensed and insured, so you can have peace of mind knowing that you are receiving trustworthy service when you hire them for repair and installation services. Whether you have an old or a new AC thermostat, or if you have any problems with other major appliances, you can rest assured that Reliable Appliance Repair will get the job done.

Don’t wait – contact Reliable Appliance Repair at (866) 516-1222 to get the job done right the first time. Enjoy the convenience of same-day services, and the confidence of dealing with a trustworthy local San Diego business. Get your AC thermostat back in working order with Reliable Appliance Repair.

FAQ: AC Thermostat Not Working?

Q. What to do if my AC thermostat is not working?

A. If your AC thermostat is not working, start by cleaning the thermostat. This can be done by using compressed air or a warm, damp cloth to gently remove the dust and debris. If this does not resolve the issue, then the thermostat may need to be replaced. It is recommended to call a local, reliable appliance repair service for this task.

Q. What if my AC still won’t turn on?

A. If your AC still won’t turn on, then it is advisable to check the circuit breaker. Make sure that the circuit breaker has not tripped. If it has, reset it. Additionally, check the outdoor unit for power and make sure it is connected. If the problem persists, it is best to call a professional.

Q. How can I make sure my thermostat is working correctly?

A. To make sure that your thermostat is working correctly, turn the thermostat up several degrees and wait a few minutes. If the AC does not turn on, then the thermostat is not working correctly. Make sure that the circuit breaker is on and that the thermostat is set to “cool.” If the issue still persists, contact a professional for support.

If you’ve run through the above steps and your AC thermostat is still not working, then you may need to replace the entire AC system. To ensure the job is done right, contact Local Reliable Appliance Repair at (866) 516-1222.