thermostat not working

Thermostat Not Working? Here's What To Do

At some point in our lives, we have all felt what it is like to experience thermostat problems. Depending on where you live, that could entail no cool air in the middle of summer or no heat during the winter. Texas is one of the hottest states in the country, so when your cooling system doesn't do its job, it can leave you in an uncomfortable situation. Luckily, there are a few things you can do to check before hiring professionals. Thermostat not working?

It's likely due to needing a battery replacement, but there are other possible causes. Learn what they are and what to do here.

Check the Power to the Thermostat

When your thermostat goes out, the first thing you want to do is check the power. Depending on what kind of thermostat you own, it may run on either AA or AAA batteries. Others work off of the power supply given off by your home's HVAC system.

To start, you'll need to identify which thermostat you own. If you suspect the batteries are dead, change them out and turn your thermostat back on. If it doesn't boot up, there may be another issue.

If you have a thermostat wired to your house, head to your breaker panel to check you haven't tripped a breaker. If you have, resetting the breaker is a simple fix.

However, if you blew a fuse, the Occupational Safety and Health Administration advises that unqualified personnel should not try to reenergize the circuit or fuse. That is because this poses a risk. So, if you suspect a fuse, be sure to call in a professional.

You also want to keep in mind that some thermostats work on a time delay. That means that even if it is your batteries or circuit breaker, the AC system may not boot up right away. Give it a few minutes to get going before you decide that it is faulty.

Check the Age of the Thermostat

The average lifespan for a thermostat is about 10-15 years. Age is one of the most common thermostat errors. So, check to see when you installed it.

If you live in an older house, look to see when the previous owners installed the thermostat. One way to tell age is whether the unit is digital or not. Most modern thermostats are digital, some with a touch screen.

Older systems are manual and may have dials or buttons on them. There is a chance that your thermostat is failing due to old age. If you suspect this to be an issue, then you might have to look into buying a whole new system.

If you have an old thermostat, then it contains mercury. Be sure not to throw it in the trash, as this is harmful to people and the environment.

Mercury poisoning can cause serious health effects to anyone exposed. Instead, be sure to recycle. That way, the mercury is handled by professionals.

Check the Mode of the Thermostat

It seems like a no-brainer, but go ahead and double-check the settings on your thermostat. Many people tend to jump to the worst possible conclusion when all that needs fixing is the mode.

If your AC is blowing warm air, make sure your thermostat isn't set to heat. That is an easy mistake to make, especially with digital thermostats. You can accidentally hit other buttons without realizing it.

Check the Temperature Setting

Along with the mode, you want to check the actual temperature setting. Look to see what the degree says on the unit. Some people like their homes to be a cool 74 degrees.

But your AC won't work if you accidentally set it higher or if you don't hit the necessary buttons. For instance, some thermostats require you to hit 'enter' before it starts cooling your house down.

Check the Calibration

Did you know that the placement of your thermostat system affects the unit's performance? Many people do not realize this, but the location is everything to keeping your system calibrated.

For instance, if your thermostat is near a window, then the sunlight may hit it and throw the temperature off. The same is true if you set it too close to a hot lamp or if there is a particularly drafty area in your home. To avoid misplacing your thermostat, speak to a professional who can assess your home and tell you the best location.

Call a Professional

If all of that troubleshooting doesn't work out, it is time to call in a professional service like us here at P&M. A company that specializes in HVAC systems will come out to check what is wrong with the thermostat.

They know all of the ins and outs, so their troubleshooting is much more thorough. That enables them to get to the root of the problem and fix your system so that you and your family remain comfortable in the hot Texas months.

Thermostat Not Working Services

As you can tell, there are several things you can do and check to see why your thermostat is giving out. Remember to check the battery and settings of the device. And if none of these tips help fix your thermostat, you may need to call some professionals.

At P&M, we offer high-quality services to ensure you stay comfortable during the hot Texas months. Feel free to contact us today and ask, "why is my thermostat not working?". We will gladly give you the answers you need and schedule an appointment to come out and fix the problem soon as possible.

What are the Benefits of a Ductless HVAC System?

Have you noticed that some rooms in your home have a different temperature than the rest of your home? Then you should consider installing a ductless HVAC system. The primary reason why you may be experiencing this problem is your AC unit isn't providing a consistent level of comfort.

The ductless systems are efficient and offer consistent comfort in every room. The ductless system usually consists of a wall-mounted indoor unit attached to an outdoor compressor via a small 3-inch hole for power and refrigerant lines. Now let's get into the top benefits of going duct-free.

Quiet Operation

Typically, a ductless air system consists of both the indoor and the outdoor components. Therefore, contractors usually install the noisy elements of the system such as the motor and the compressor outside. In fact, you won't believe how quiet these ductless systems are while in operation. The ductless system will operate at approximately 26 decibels which is quieter than even the average whispers in a library.

Increased Comfort

When you are installing the ductless system, you determine where you want to place it and how many units you prefer for your home. You can put it in any part of your home you wish. Since we have already established that different rooms in your home record different temperatures, you place the unit in a strategic place to boost the overall comfort of your home. You can have more than one unit and install them in different rooms.

Energy Efficient

Every homeowner would love to make their home energy-efficient to cut down on energy bills. Typically, more than 30 percent of energy consumption in your home is through the traditional ductwork. The ducts tend to consume a lot of energy even before the conditioned air reaches your home. With the ductless systems, you are getting 100 percent of the unit’s output. The energy saving of a ductless system goes beyond the system’s output. Since you are heating or cooling the required rooms only, you use less energy.

Environmental Friendly

Apart from being energy efficient, the ductless system also operates on the R410A refrigerant which is specially designed to prevent damage to the ozone layer. Since your home is also energy-efficient, its overall negative impact on the environment is significantly reduced.

Are you looking for heating and cooling experts in Houston? Contact us here at P&M for quality HVAC services today and we'll take great care of you!

What Are Different Types of Thermostats?

Do you know which type of thermostat to buy? A thermostat is a device which controls the temperature of cooling and heating devices. We sell quality thermostats in Houston, TX. Here is a highlight on the various types of thermostats you can purchase.

Manual Mechanical Thermostats

It is a traditional thermostat variety. Once a homeowner sets it at a particular temperature, it remains constant until they manually switch it off. Also, it remains turned off until one manually turns it on. Moreover, you should manually switch it from cooling to heating or heating to cooling mode. However, many people no longer use them as they have mercury.

Manual Digital Thermostats

They typically use a solid-state temperature monitoring tool, a thermistor, which senses a room's temperature. It energizes the equipment through a circuit board or user settings. One can efficiently use them if they are knowledgeable in HVAC electrical control. When you intend it replace the thermostat, it recommended that you hire a certified HVAC technician. It avoids creating electrical problems such as faulty wiring.

Programmable Digital Thermostats

They offer essential and multiple functions for a variety of HVAC equipment. Some thermostats may be challenging to operate while others are quickly programmable. However, it's vital to understand different thermostat programs and to read their user guides.

Programmable Mechanical Thermostats

They have been in use for decades. Most HVAC stores no longer sell them. The thermostat operates through its mechanical timer, multiple switches, and user settings. It has a mercury switch that completes its circuit. Also, most American states have banned their sale. They have established laws that regulate the disposal of these thermostats.

More types of thermostats include:

  • One-Stage Cool and Heat: Single-stage thermostats are used for packaged units and split systems
  • Two-Stage or Multi-Stage: Appropriate for heating and cooling equipment that automatically adjusts output capacity to match the existing load
  • 24mV Controls: A 24mV thermostat is usually installed in modular cooling and heating units or appropriately equipped fireplaces.


If you intend to purchase a thermostat in Houston, Texas, contact [company_name]. We sell a variety of thermostats at affordable prices and we teach clients on how to maintain and operate their new temperature control system.