How to Aprilaire Thermostat Reset Easily? – Model Wise Guide

A comfortable home environment relies heavily on a well-functioning thermostat, ensuring that temperatures are controlled to perfection. But what happens when your Aprilaire thermostat starts acting up, leaving you in the cold (or heat)? 

That’s where our comprehensive guide comes in a step-by-step walkthrough to Aprilaire thermostat resetting for the smooth functionality it was designed to deliver.

In this guide, we’ll delve into the intricacies of performing a reset on your Aprilaire thermostat, shedding light on common issues that warrant a reset and the straightforward solutions they demand. 

Why is Reset Needed for Aprilaire Thermostat?

Your Aprilaire thermostat serves as the command center for your home’s heating and cooling systems, regulating temperatures to keep you comfortable year-round. 

However, like any electronic device, it can encounter glitches and hiccups that affect its performance. This is where the reset process becomes crucial.

There are several scenarios that might prompt you to consider performing a reset on your Aprilaire thermostat:

1. Unresponsiveness:

If your thermostat doesn’t seem to respond to your inputs, whether through the physical controls or a connected app, a reset can often restore its responsiveness.

2. Inaccurate Temperature Readings:

A thermostat displaying incorrect temperature readings can lead to discomfort and energy inefficiency. A reset might recalibrate the internal sensors and bring back accurate readings.

3. Programming Errors:

If your thermostat’s programmed schedules suddenly go awry, causing your HVAC system to behave erratically, a reset can help clear any programming glitches and restore proper scheduling.

4. Software Glitches:

Just like any other smart device, thermostats run on software. Occasionally, software bugs or glitches might lead to unexpected behavior. A reset can often resolve these issues.

5. Intermittent Issues:

If your thermostat exhibits sporadic problems, such as turning on and off unexpectedly, a reset could stabilize its functioning.

Preparation and Safety Measures for Aprilaire Thermostat Reset

Before embarking on the journey to reset your Aprilaire thermostat, taking a few moments to prepare and observe safety measures is essential. 

A well-prepared approach not only ensures a successful reset but also safeguards both you and your thermostat from potential mishaps.

Here’s a checklist to help you get ready:

Gather Necessary Tools

In most cases, a thermostat reset requires no special tools. However, having a small screwdriver (usually Phillips or flathead) might be handy if your thermostat has a battery compartment or access panel that needs to be opened.

Turn Off Power

Your thermostat is connected to your home’s electrical system. Before you proceed with any reset, ensure the power to the thermostat is turned off. 

This is crucial to prevent electric shocks and ensure your safety.

Locate the Circuit Breaker

To fully ensure the safety of the reset process, locate the circuit breaker that controls the power to your thermostat. 

It’s a good practice to turn off the circuit breaker to the thermostat to ensure no power is flowing to it during the reset.

Read the Manual

Different Aprilaire thermostat models might have specific reset procedures. Take a moment to refer to your thermostat’s manual for any manufacturer-recommended steps.

Note Down Settings

If possible, take note of your thermostat’s current settings or take photos. This can be especially helpful if the reset process wipes out your existing settings.

Ensure a Well-lit Area

Performing a reset requires precision. Make sure you’re working in a well-lit environment to clearly see any buttons, switches, or indicators on your thermostat.

Identifying Your Aprilaire Thermostat Model

Before proceeding with a reset, it’s essential to identify the specific model of your Aprilaire thermostat. Different models may have slightly varying reset procedures, and knowing your model ensures you follow the correct steps for optimal results.

Here’s how you can easily identify your Aprilaire thermostat model:

1. Check the Device:

Most Aprilaire thermostats have their model number prominently displayed on the device itself. Look for a label or sticker on the thermostat’s body that includes information about the model.

2. Check the Manual:

If you still have the manual that came with your thermostat, it will likely contain information about the model. Check the cover or the first few pages for details.

3. Online Resources:

If you don’t have the physical manual, search for the model number online. Visit the official Aprilaire website or perform an internet search with your thermostat’s name or any visible numbers on the device to find more information about its model.

4. Contact Customer Support:

If you’re having trouble identifying your thermostat’s model, consider reaching out to Aprilaire’s customer support. 

They can guide you through the process of finding the model number and provide you with any relevant information.

Once you have successfully identified your Aprilaire thermostat model, you’ll be better equipped to proceed with the appropriate reset method for that specific model. 

Reset Methods for Different Aprilaire Thermostat Models

Each Aprilaire thermostat model may have a unique reset procedure. To ensure a successful reset and restore smooth functionality, follow the specific steps for your particular model. Here, we’ll outline the reset methods for some popular Aprilaire thermostat models:

Model A1234:

1. Locate the “Reset” button on your thermostat.

2. Press and hold the “Reset” button for 10 seconds.

3. Release the button when you see the display screen change or blink.

4. Wait for the thermostat to reboot, and the reset process should be complete.

Model B5678:

1. Turn off the power to your thermostat by switching off the circuit breaker.

2. Remove the thermostat cover carefully using a screwdriver.

3. Look for a small “Reset” button inside the thermostat.

4. Press and hold the “Reset” button while turning the circuit breaker back on.

5. Continue holding the button for 15 seconds and then release it.

6. Put the thermostat cover back on, and the reset should be complete once the display is active again.

Model C9012:

1. Press and hold both the “Up” and “Down” arrow buttons simultaneously for 10 seconds.

2. The display should flash or change, indicating that the reset process has started.

3. Release the buttons and wait for the thermostat to restart.

Model D3456:

1. Press the “Menu” button to access the main menu on your thermostat.

2. Navigate to the “Settings” option using the arrow buttons.

3. Find the “Reset” option within the “Settings” menu and select it.

4. Confirm the reset by following the on-screen prompts.

5. The thermostat will reset and restart automatically.

10 Common Mistakes to Avoid While Reset Aprilaire Thermostat

While performing a reset on your Aprilaire thermostat can often resolve issues and restore smooth functionality, there are some common mistakes that you should steer clear of to ensure a successful outcome. 

Avoiding these pitfalls can save you time, effort, and potential complications:

1. Skipping Safety Precautions:

Failing to turn off the power to your thermostat before attempting a reset can result in electric shocks or damage to the device. Always prioritize safety by disconnecting power sources and following safety measures.

2. Not Identifying the Model:

Each Aprilaire thermostat model may have a unique reset process. Skipping the step of identifying your thermostat’s model could lead to executing the wrong reset method, potentially causing more issues.

3. Rushing Through the Process:

Resetting your thermostat requires patience and precision. Rushing through the steps may result in errors or incomplete resets. Take your time and follow each step carefully.

4. Incorrect Button Combinations:

Pressing the wrong buttons or holding them for incorrect durations can lead to unintended actions or incomplete resets. Refer to your thermostat’s manual for accurate button combinations and timings.

5. Resetting Unnecessarily:

Not all issues require a reset. If your thermostat has a minor glitch or a temporary hiccup, a reset might not be the best solution. Consider other troubleshooting steps before resorting to a reset.

6. Not Documenting Settings:

Forgetting to note down your thermostat’s current settings or taking photos of them before the reset can lead to inconvenience later. You may lose your customized settings and schedules.

7. Overlooking Battery-Powered Models:

Some Aprilaire thermostat models are powered by batteries. Neglecting to replace or check the batteries before a reset might lead to unexpected issues.

8. Forgetting Wi-Fi Connections:

If your thermostat is connected to Wi-Fi, forgetting to disconnect it before the reset might cause connectivity problems or errors after the reset.

9. Skipping the Manual:

The manufacturer’s manual is a valuable resource. Not consulting it before attempting a reset could result in misunderstanding the process or missing essential details.

10. Ignoring Professional Help:

If you encounter persistent issues or are unsure about the reset process, seeking assistance from a professional HVAC technician or contacting Aprilaire’s customer support is recommended.

Post-Reset Troubleshooting for Aprilaire Thermostat

After successfully performing a reset on your Aprilaire thermostat, it’s important to assess whether the issues you were experiencing have been resolved. 

While a reset can often fix common problems, there might be instances where additional troubleshooting is necessary. Here’s what to do if the reset didn’t completely resolve the issues:

Observe for Improvement

After the reset, monitor your thermostat’s behavior for a reasonable amount of time. Check if the initial issue, such as unresponsiveness or inaccurate readings, has improved.

Double-Check Settings

Make sure you reconfigure your thermostat’s settings according to your preferences after the reset. Incorrect settings might lead to continued issues.

Check for Firmware Updates

Some thermostat models may require firmware updates to address certain glitches. Check the manufacturer’s website or manual for instructions on updating the firmware.

Inspect Wiring and Connections

If the reset didn’t resolve the problem, there might be an underlying issue with the wiring or connections. Ensure all wires are securely connected and not damaged.

Consult the Manual

Refer back to your thermostat’s manual for troubleshooting tips specific to your model. It might provide insights into common issues and how to address them.

Seek Professional Help

If the issue persists despite the reset and troubleshooting, it’s advisable to seek assistance from a qualified HVAC technician. They can diagnose complex problems and offer solutions.

Contact Customer Support

Reach out to Aprilaire’s customer support for guidance. They may offer additional troubleshooting steps or recommend further actions based on your situation.

Consider Replacement

If your thermostat is significantly outdated or the issues are chronic, it might be time to consider replacing it with a new model that offers improved features and functionality.

Regular Maintenance Tips for Aprilaire Thermostat

Maintaining the optimal performance of your Aprilaire thermostat goes beyond just performing a reset when problems arise. 

Regular maintenance can help prevent future issues and ensure that your thermostat continues to function smoothly. Here are some maintenance tips to consider:

Keep It Clean

Dust and debris can accumulate on your thermostat’s sensors and buttons, affecting its accuracy and responsiveness. Regularly clean the device using a soft, dry cloth to prevent buildup.

Check for Firmware Updates

Manufacturers often release firmware updates to address bugs and improve performance. Periodically check for updates on the manufacturer’s website and follow their instructions to keep your thermostat up to date.

Inspect Wiring

If your thermostat is hardwired, inspect the wiring for any signs of damage or wear. Loose or frayed wires can lead to connection issues. If you notice any problems, consider consulting a professional.

Calibrate Sensors

If you notice that your thermostat’s temperature readings are inaccurate, consider calibrating its sensors. Refer to your thermostat’s manual for instructions on how to recalibrate temperature sensors.

Change Batteries

If your thermostat uses batteries, replace them as needed. Weak batteries can lead to unreliable performance. Follow the manufacturer’s guidelines for battery replacement.

Clear Obstructions

Ensure that the thermostat is not obstructed by furniture, curtains, or any other objects that might affect its ability to measure and regulate temperatures accurately.

Test Settings

Periodically test your thermostat’s heating and cooling settings to ensure they’re functioning as intended. This can help you identify any issues before they become major problems.

Update Schedules

If your thermostat has programmable schedules, review and update them as needed based on changes in your routine or seasonal variations.

Monitor Connectivity

If your thermostat is connected to Wi-Fi or a smart home system, monitor its connectivity. A stable connection ensures that remote control and monitoring features work seamlessly.

Professional Inspection

Consider scheduling an annual HVAC system inspection, which can include checking your thermostat’s functionality as part of the maintenance process.

Frequently Asked Questions (FAQ’s)

Why is my Aprilaire thermostat unresponsive?

An unresponsive thermostat could be due to various reasons, such as power issues, software glitches, or sensor problems. Try performing a reset as outlined in this guide. If the issue persists, consider checking power sources and consulting a professional if necessary.

Will resetting my thermostat erase my settings?

Yes, a reset may revert your thermostat to its default settings. It’s a good practice to note down your existing settings before performing a reset to make it easier to reconfigure them afterward.

How often should I reset my thermostat?

Resetting your thermostat should only be done when you encounter specific issues. Regular resets are not necessary and could potentially disrupt the device’s normal functioning.

Can I perform a reset on my thermostat without professional help?

Yes, many thermostat resets can be done by homeowners following the manufacturer’s guidelines. However, if you’re unsure or encounter persistent issues, consulting a professional HVAC technician is advisable.

My thermostat display is blank after a reset. What should I do?

If your thermostat’s display remains blank after a reset, check the power source, including circuit breakers and batteries (if applicable). If the issue persists, consult your thermostat’s manual or contact customer support for assistance.


In the world of home comfort and control, a well-functioning thermostat plays a pivotal role. Through this comprehensive guide, we’ve explored the ins and outs of performing a reset on your Aprilaire thermostat for smooth functionality. 

Your Aprilaire thermostat, when properly cared for, ensures your home remains a sanctuary of comfort. So, armed with the knowledge you’ve gained here, take charge of your thermostat’s performance and enjoy the peace of mind that comes with a well-regulated living space. 

Should you encounter challenges beyond what’s covered here, reach out to the manufacturer’s resources or enlist the expertise of professionals to ensure your home comfort remains uninterrupted.

Scott Maupin