honeywell thermostat lcd display not working brands

Your thermostat is the control center for your HVAC system. Programmable thermostats feature easy-to-read screens that allow you to program your heating and cooling settings and view the current temperature in your home. However, if that screen goes blank, you can’t do any of this. Honeywell and other brands of programmable thermostats typically show a blank screen when there is no power going to the wall unit.

A Honeywell thermostat will flash a low battery signal for about one to two months before the batteries in the wall unit run out completely. If you’ve been away or haven’t noticed this warning and the batteries can no longer provide power to the screen, it will go blank. This is easily fixed by removing the cover on the wall unit and replacing the batteries. You may have to reset the unit and reprogram your settings once the display returns.

If your thermostat is wired directly into your home’s electrical system, a blank screen indicates there is no power going to the unit, which means there may be a tripped breaker or a problem with the wiring. If the breaker controlling the unit hasn’t tripped, contact an HVAC technician or an electrician to inspect the wires. Sometimes a loose connection is enough to stop power from running to the unit. If this doesn’t resolve the issue, have the thermostat replaced.

Is your Honeywell Thermostat screen not responding? You are not alone! That seems to be one of the common problems with Honeywell thermostats and other brands.

However, it doesn’t mean your thermostat is faulty whenever this happens. Sometimes, the screen may stop responding when the batteries are low or bad, or when the circuit breaker trips off.

So if your Honeywell thermostat screen is not responding, you want to keep reading as this post contains valuable information for you. Let’s head right into it!

When your thermostat screen goes blank and is not responding, it becomes near impossible to program your heating and cooling settings and also view the current temperature in your home. Sometimes, this issue doesn’t require an HVAC expert, so you can attempt to fix it yourself. And here are some troubleshooting steps to try if your Honeywell thermostat screen is not responding.

When your Honeywell thermostat screen stops responding or creating fading digits, the first place to look is the batteries. The batteries may be drained out or bad, causing the screen not to respond as well as it should. This is especially true if your thermostat is running completely on batteries.

This is another common reason the screen of many Honeywell thermostat users stops responding. There may be a loose wire on the back of your thermostat, and your thermostat needs all wires properly connected before it can communicate well with the screen. However, you can fix this on your own too—no special skill or technical know-how is required!

To check for any loose wire at the back of your thermostat, remove its cover. Next unscrew the system from the wall, and you will see a bundle of thin wires located just at the back of it. Check to see if any of these wires are loose, so you can put them back in place. You should get your screen working properly again after fixing the loose wire.

Most HVAC systems come with their own circuit breaker, and during a power outage or power surge, the circuit breaker can trip off. When this happens, it can cause your Honeywell screen to refuse to respond. So, check the circuit breaker to be sure it is not tripped. If it’s tripped, manually flip it off and then on again.

One of the cables is marked for the touch screen while the other for LCD. There are two small tabs on either side of the cable. Slightly pull it up and back to ensure it is fully seated. This should bring back the display screen but don’t forget you need to be extra careful with the cables because they are fragile.

This may not be the solution you expect to see, but that is likely going to be your only option when you have tried everything mentioned above, and nothing seems to work. It shows that your Honeywell thermostat may be faulty and so you will need to replace it with a new one.

And on the one hand, you may want to have an HVAC technician examine the faulty thermostat to see if it can still be fixed. If not, you should get a new thermostat.

You may also read our article about fixing a Honeywell Thermostat that stops working after replacement and how to pair your thermostats with Vivint Smart Home System.

There are several reasons for this. If your thermostat runs on batteries, maybe your batteries are dead. But if it is wired into the house’s electrical system, it might be some wiring issues causing your thermostat screen to go blank. Check the steps highlighted above to fix it.

As mentioned, one major reason the Honeywell Thermostat screen goes blank is when the batteries are drained out and can no longer supply power to the screen. Your batteries may drain out without notice—especially if you have been away for too long.

To reset the thermostat even when the screen is blank, you will have to replace the batteries. Remove the cover on the wall unit and replace the batteries. The display should come back on immediately after you replaced the batteries.

Though some cases of a ‘thermostat screen not responding’ may require a replacement, it doesn’t happen all the time. You could easily fix the bug yourself sometimes.

Based on my experience and research, I decided to compile a list of common go-to fixes that you should try if you find that your Honeywell Device is not working as it should.

So, how do you fix the no-display issue on your Honeywell Thermostat even after you have replaced the batteries? First, check the power, wiring, and reset the thermostat.

Re-insert the batteries in the correct orientation; once you have inserted them successfully, your thermostat should start displaying information after a brief pause.

Keep in mind that while sometimes the thermostat issues can be fixed, in other cases, you may want to consider replacing your thermostat or perhaps upgrading to a newer version.

Ensure proper maintenance of the device, as Honeywell’s Limited Warranty does not cover products that have been damaged due to negligence, such as failure to follow a regular cleaning schedule.

Picture this: You walk up to your thermostat to adjust the temperature in your home, only to be greeted by a blank screen. You tap on it and press the buttons — still, nothing. Since your thermostat is the control center for your HVAC system, you can’t afford to go too long without it working properly.

Remove and replace the batteries from your Honeywell system as directed in the instructions for your specific model. The batteries may be within your battery compartment or control panel. Be careful to make sure they are correctly oriented within the thermostat. Once replaced, test the system for operation and responsiveness.

At ABC Electrical and HVAC Service, our teams of dedicated HVAC professionals are happy to help you keep your Honeywell thermostat in prime condition. Our technicians can install, repair, replace, and maintain the comfort systems you depend on. Whether your Honeywell thermostat is brand new or 10 years old, we have the skills and institutional expertise required to help you stay comfortable throughout the year.

Contact ABC Plumbing, Sewer, Heating, Cooling and Electricat (888) 868-6667 to learn more about why we recommend Honeywell thermostats to our clients in Chicago and surrounding areas.

Your thermostat is important. It is the one device that can control the temperature in your home. That being said, it can be more than a little concerning when you go to turn on your AC and find a blank thermostat.

However, most of the time, a thermostat blank screen can be easily fixed if you can find out what caused it. Here are some possible causes of a blank thermostat and how to fix it.

Before you jump to conclusions, make sure the thermostat isn’t just turned off. If you don’t live alone, there is always the chance that someone else turned it off by accident and there is nothing to worry about.

Some thermostats automatically adjust their screen’s brightness level when there is too much light in the room to save battery power. Be sure to check and see if your thermostat is at a lower brightness before you move on to other potential causes.

Another common cause of a thermostat blank screen is dead batteries. If your blank thermostat runs on batteries, try replacing them – and see if that turns the thermostat back on.

If you own a Honeywell thermostat, the blank screen could be an indication of a furnace door that wasn’t completely closed. These thermostats are programmed to shut off entirely if a furnace door is open. To rule this out, double-check to make sure your furnace door is fully closed.

Most thermostats are connected to a home’s main electrical system. If this is the case, it’s possible that the thermostat or some other electrical device caused the breaker to trip. Go to the breaker, and flip the switch to reset the circuit. If the screen turns back on, you found the cause.

Sometimes, the issue is with your AC itself. Every AC has a safety switch installed in the drain pan that turns the system, thermostat included, completely off if it detects a hazardous problem. If the safety switch indicates a problem, contact an HVAC professional to inspect your AC.

It is always a possibility that your thermostat has reached the end of the road and needs to be replaced. Most thermostats last around 10 years. Therefore, if your thermostat has been around a while, has a blank screen and isn’t working, it may be time for a new one.

Your thermostat display could refuse to work if you don’t close the control door completely. If it’s not the access door, you’ll need to inspect the position of the breaker switch, inspect the thermostat configuration and check for sensor issues.

We assume that you’ve connected your thermostat to your smartphone application via WiFi and if it is still connected while the display is not working, it means that you have full control over it.

Regardless of if it’s only the display or the entire thermostat is not working, here are a few steps to apply that will definitely resolve any problems related to

When ready, make sure that the internal hardware that you’ve cleaned is DRY before you turn on the thermostat. Lastly, test and check if the display will turn on.

Once you turn on the thermostat the display should light up and provide you with visuals of the initial setup configuration. If not, continue with the next step.

It is possible that the mercury switch is not reading the temperature you applied correctly. This can cause your system to power offandonover and over again.

In most cases, these symptoms are related to the temperature sensorfault, which will definitely prevent the display controls or disable the visual entirely.

If both values do not align perfectly (there should be 1-2 degrees alloweness) then you’ve got a sensor issue, which is not that expensive to be replaced.

Next, we’ll review cases in which people report that they cannot adjust the brightness of their display which if lowered to the minimum can make the impression of a non-working display.

Turn OFF your thermostat, then locate the circuit breaker responsible for the HVAC system and turn it OFF as well. Wait for about 1 minute and put it back ON.

Once you’re done with these steps, restart your thermostat and check if the display will work. If it doesn’t, well, your display might just be broken, and you’ll need a replacement.

To fix a non-working display on the Honeywell thermostat, first, try to increase the brightness. Then change the batteries to perform a reset and make sure that the circuit breaker switch is flipped ON.

If however, the problem is still there and you don’t think that you’ll need repair service, you can contact Honeywell customer service for another round of troubleshooting.

Kevin has over five years of experience working in various Tech startups and providing Technical solutions. He has contributed to many Tech publications and websites.

However, as with any other electronic device, your thermostat may malfunction occasionally leaving you exposed to uncomfortable temperatures and astronomical heating and cooling costs.

Below we look at how to troubleshoot one of the not-so-common faults with this brand of thermostats: Honeywell thermostat buttons not working (the buttons suddenly stop responding).

The following instructions demonstrate how to clean up any caked in material in your Honeywell thermostat- follow the steps and see if your thermostat will start to work once again:

If you’re unsure how to take the Honeywell thermostat battery compartment out, check your Honeywell thermostat model instructions- you should find the procedure under the battery replacement section.

Quick Tip: Of course, Honeywell makes plenty of different style stats so it’s important to check your owner’s manual for precise instructions on how to reset yours.

If the thermostat buttons still don’t work and this is what you’re suspecting, we suggest that you call your HVAC contractor for further troubleshooting.

Contacting the Honeywell Support Teammay also be worth particularly if your device is still under warranty for assistance (and possible replacement).

Imagine you’re waking up on a cold California winter day and you decide to turn the temperature in your house up to get a little warmer and you discover the thermostat won’t work. You wonder why is my thermostat blank even though I haven’t lost power? Being that your thermostat is the command and chief for your entire home’s air system, it is crucial that the problem gets solved, whatever that may be. It is important because there may be a bigger underlying issue that needs to be addressed. Here are some of the thermostat options out there and what we recommend:

Standard non-programmable thermostats such as the Honeywell thermostat and Totaline thermostat and the Trane thermostat brands (which also make smart thermostats) generally have no issues with them other than battery replacement and dust piling up. Although these are the least expensive thermostats fairly simple to use, this is the least energy-efficient model. When you modify the thermostat because of the outdoor temperature changing, you have to constantly go back and forth with it to adjust and readjust.

Programmable thermostats such as the brands listed above as well as Google, Ecobee, and Bosch often have issues such as batteries or drawing too much power when they are using the same power source as a big appliance (tripped circuit breaker). Some programmable thermostats don’t send notifications when the power supply is off, which is a larger issue for homeowners relying on that information to ensure there isn’t an emergency within the home that needs to be tended to. Overall though, programmable thermostats prolong the life of your heating and AC system and can save you up to 30% of your costs lost from energy efficiency.

Smart thermostats learn the behavior patterns of your home (when people are home versus when they are not). They can also detect weather patterns and if there are any major issues with your HVAC system, notify you right away. By using Wifi technology, you can control from your smartphone, computer, or tablet all of its actions. These thermostats can adjust themselves. Although these are the most expensive thermostats, they are the most energy-efficient option. With this technology can come some issues that usually can be fixed with a minor adjustment. Rarely, they can produce faulty analytics on your home heating and cooling habits. These are the thermostats we recommend.

Ecobee’s top-tier model outperformed all other thermostats, and it comes with the best remote sensor we’ve tested. It has an air-quality monitor, as well as a built-in microphone, speaker, and Alexa for voice control, but it also works with most smart-home platforms.

The Ecobee Smart Thermostat Premium consistently kept my home more comfortable than any of the other thermostats I tested, and it even saved more energy in the process (on average, bills were at least 7% lower than in the same period the prior year). This device can be controlled directly from its touchscreen, remotely using a smartphone or tablet, or by voice command via a built-in Alexa speaker (or with an external Google or Apple smart speaker). An included remote SmartSensor detects your presence and your temperature, and it can be placed in an area that’s too cold or warm so the Ecobee can better balance temps around your home. (The unit comes with one sensor, and you can add up to 32.) There’s a bit of a learning curve involved in getting the most out of all the Ecobee thermostat’s settings, but this pays off in the end.

We also recommend the Ecobee Smart Thermostat Enhanced, a slightly stripped-down model that functions identically but doesn’t have a built-in Alexa smart speaker, air-quality monitor, or remote sensors (they are compatible, but you have to buy them separately). If you have a smaller home or don’t need a remote sensor or voice controls, this is a great, less expensive option.

Nest’s most-advanced smart thermostat features a larger, crisper, and more useful display than its predecessors, as well as wide compatibility with HVAC systems.

The Google Nest Learning Thermostat (3rd generation) learns your preferred heating and cooling settings. Then it automatically creates a schedule that should maximize efficiency, so you don’t have to program the device yourself. It installs easily and supports geofencing, and it’s compatible with most home climate-control systems. You can also add optional Nest Temperature Sensors, little wireless pucks that measure the temperature in rooms without a thermostat. If you have trouble spots that are often too cold or hot, you can place one of Nest’s sensors there and expect your room to be more comfortable. Unlike the Ecobee’s SmartSensors, however, Nest’s Temperature Sensors don’t detect presence or movement (the thermostat itself does, though), so they can’t be used to trigger heating or cooling based on someone being in a specific room.

Though Amazon’s Smart Thermostat isn’t as sophisticated as other picks, it works well, is widely compatible with HVAC systems, and is simply inexpensive.

The Amazon Smart Thermostat may be basic, with simple controls and rudimentary AI, but it does what it does well, and for some people that makes it ideal. This model can be configured to run on a timed schedule, or, using Alexa Hunches (Amazon’s term for Alexa’s AI-based learning feature), it can eventually learn your patterns and suggest customized settings. Unlike Nest’s hallmark mechanical control dial or Ecobee’s smartphone-like touchscreen, to adjust the Amazon Smart Thermostat, you first tap the white touch-surface face to wake it up and make controls visible. You can also adjust the temperature setting using voice commands to an Alexa device or with the Alexa app in your smartphone. The one conspicuous missing feature we’d like to see is compatibility with remote sensors, which our top picks have.

A pricey but practically perfect option for adding smart controls to electric baseboard heaters, the Mysa Smart Thermostat uses scheduling, geofencing, and a smart eco mode to save you money while imperceptibly using less energy.

The Mysa Smart Thermostat will make your “dumb” and inefficient electric baseboard heating far more cost-effective. It’s our only pick in what is an admittedly limited field—it works with 110-volt (up to 240-volt) electrical heating sources. We like its clean, modern design, the fact that it doesn’t require a separate hub, and that it works with all the major smart-home systems. The Mysa uses geolocation and artificial intelligence alongside scheduling and zoning to heat your home efficiently and save energy while keeping you comfortable.

The thermostat can be reset by power cycling.  Power cycle the thermostat by removing if from the subbase and remove the batteries (some thermostats will not have batteries). Wait 10 seconds and then replace the batteries and place the thermostat back on the subbase.

The Pro1 professional thermostat systems are designed to give you the best technology of today and the flexibility for easy upgrading in the future.  Our innovative design always has the same footprint so you never have to worry about wall marks to repair if you upgrade to a new model.  Your Heating and Air Conditioning technician can help you upgrade.

Auto-changeover is a feature on some of our models that automatically selects heating or cooling based upon your program settings.  The user sets the program for heating and for cooling and then put the thermostat in “Auto” mode on the system switch.  The thermostat will then use the programmed settings to turn on heating or cooling as needed.

Many Pro1 programmable thermostats have a morning recovery feature that will turn on your heating or cooling before the start time of your wake program so that the room temperature is near your wake set point temperature at the time you selected for the wake time period.

Some Pro1 thermostats have built in delays that will last for 5 minutes or longer before heating or cooling is turned on. One reason this feature is used is to help protect your system against short cycling.  Your heating and cooling professional knows how to use these features to your best advantage.

Some Pro1 thermostats have a built in minimum run time feature that will make sure your system always runs for at least 5 minutes every time your system turn on.  This feature is often used to help remove humidity and to keep your system from turning on and then off too quickly.

Our programmable thermostats have an override feature that lets you override the program temporarily or permanently.  Your thermostat will be in permanent override if you press the up or down temperature keys and then press the “hold” key. You will notice the word “hold” near your setpoint and now your thermostat will stay at your setpoint temperature until you press “run sched” or turn the system switch to “off”.

Your display will be blank except for the low battery icon as a final warning to replace the batteries. You should replace the batteries immediately. Your display will return to normal operation after the batteries are replaced.

Some Pro1 thermostats will turn off the display light when the batteries are getting low. The display light will return to normal operation after the batteries are replaced.

Open the door on the front of the thermostat.  Replace with 2 high quality AA Batteries (Duracell or Energizer).  If you don’t see batteries behind the door on the front, pull the thermostat off its sub-base with a firm tug to access the batteries at the back of the thermostat.

If your installing contractor has configured the thermostat to remind you when your filter needs to be changed, you will see “FILt” in the display when it is time to change your filter.

After your have changed your filter and reset your Filter Change Reminder, “FILt” will disappear and not appear again until it’s time to change your filter again.

The thermostat operates between 20-30 VAC, "supplied" to the R/RC terminals and "returning" through the C terminal. A C wire, connected to C on the equipment, is required for the thermostat to power itself.

Confirm you have a C wire in the C terminal. If your previous thermostat did not use a C wire, it"s unlikely that it is connected at the equipment. Verify the C wire is connected to the C terminal in your furnace or air handler.

Using a multimeter, measure the AC voltage between your R/ RC wire and your C wire. Your thermostat operates between 20-30VAC, any reading outside this range should be addressed by a Professional Contractor.

Honeywell is a popular brand that is known for providing different kinds of smart thermostats. Their thermostats are designed to keep your room temperature just according to your needs. But even a normal thermostat can help you achieve that.

What really takes the Honeywell thermostat apart from others is that it will help you save plenty of energy. You will also be able to control the thermostat while remotely being anywhere. Thanks to Honeywell, you will be able to choose from a list of options, each aimed at fulfilling all of your needs.

Most Honeywell thermostats come with a built-in touchscreen. The screen can be used to do certain commands on your thermostat. It can also be used to show status of the thermostat.

Unfortunately, an ongoing problem with the Honeywell thermostat has made many users worry. The problem is that their Honeywell thermostat screen is not responding at all.

One of the first reasons why your screen is not giving a response might be due to a drained-out battery. If the thermostat is running completely on battery, then it is bound to run out of juice.

A very common reason which could lead to no display on the thermostat screen could be a tripped circuit breaker. Most HVAC systems have their own circuit breaker. Ensure you check that as well.

One of the most common reasons behind no response on your thermostat’s screen is loose wire on the back of your thermostat. In order to fix this, you will have to remove the thermostat cover.

Grab the sides and pull gently. Unscrew the 2-4 screws that may be securing the base to the wall. You should see a bundle of thin wires. You will need to watch out for the fastening screw that is that is missing any wire. Reattach them together. If this does not fix the issue, then you may want to call in a professional.

If nothing seems to work, then chances are that your device is faulty. In this case, there is nothing much that you can do. The only thing that should work is to get your thermostat replaced with a new one.

Through this article, we have explained all the 4 different ways on how you can fix Honeywell thermostat screen is not responding. Following them should help you get rid of this annoying issue.