How to Install Honeywell Non Programmable Thermostat Rth111B: Quick Guide

To install the Honeywell Non Programmable Thermostat Rth111B, start by turning off power, removing the old thermostat, and labeling wires. Then, mount the new thermostat base, connect the wires, and attach the thermostat cover securely.

Are you looking to upgrade your home’s thermostat to improve energy efficiency and comfort levels? Installing a Honeywell Non Programmable Thermostat Rth111B is a simple and effective way to achieve this goal. With its user-friendly design and precise temperature control, this thermostat can help you create a comfortable environment while saving on energy costs.

In this guide, we will walk you through the easy steps to install your new Honeywell thermostat, allowing you to enjoy its benefits in no time.

Introduction To Honeywell Rth111b

Learn how to install the Honeywell non-programmable thermostat Rth111B with ease. Simply follow the step-by-step instructions provided in the user manual to set up your thermostat and enjoy optimal comfort in your home.

If you’re looking for a simple and cost-effective solution to regulate the temperature in your home, Honeywell Rth111B non-programmable thermostat is the perfect fit for you. This thermostat is easy to install and use, making it an excellent choice for homeowners who don’t want to deal with complicated programming.

With its user-friendly interface and precise temperature control, the Honeywell Rth111B is an excellent value for your money.

Benefits Of A Non-programmable Thermostat

A non-programmable thermostat is an excellent option for homeowners who don’t have a fixed schedule or prefer to control their home’s temperature manually. Here are some of the benefits of using a non-programmable thermostat:

  • Easy to use
  • No programming required
  • Cost-effective
  • Simple and straightforward

Key Features Of Honeywell Rth111b

The Honeywell Rth111B non-programmable thermostat is a reliable and straightforward temperature control solution for your home. Here are some of its key features:

Battery-powered Provides precise temperature control
User-friendly interface Large, easy-to-read display
Works with most heating and cooling systems Easy to install and set up

With its battery-powered operation, the Honeywell Rth111B thermostat is easy to install and use. It works with most heating and cooling systems and provides precise temperature control to keep your home comfortable. The user-friendly interface and large, easy-to-read display make it easy to set and adjust the temperature, while the simple design ensures that you won’t have to deal with complicated programming.

Tools And Materials Needed

When installing the Honeywell Non-Programmable Thermostat Rth111B, ensure you have the necessary tools and materials ready. Here is a breakdown of what you will need:

List Of Required Tools

  • Screwdriver (Phillips and Flathead)
  • Drill with Drill Bits
  • Wire Cutter/Stripper
  • Level

Safety Equipment For Installation

  • Safety Glasses
  • Gloves
  • Protective Mask

Pre-installation Checklist

When installing a Honeywell non-programmable thermostat RTH111B, a thorough pre-installation checklist is crucial to ensure a smooth and successful installation process. By following this checklist, you can avoid potential issues and ensure that the thermostat is compatible with your HVAC system. Here are the essential steps to include in your pre-installation checklist:

Turn Off Power To Your Hvac System

Before beginning the installation process, it’s important to turn off the power to your HVAC system to prevent any electrical mishaps. Locate the circuit breaker or power switch associated with your heating and cooling system and switch it off to ensure a safe installation process.

Verify Compatibility With Your System

Check the compatibility of the Honeywell non-programmable thermostat RTH111B with your HVAC system. Review the product manual or visit the manufacturer’s website to ensure that the thermostat is suitable for your specific heating and cooling setup. Verify that the wiring and system specifications align with the requirements of the thermostat.

Removing The Old Thermostat

Before you can install your new Honeywell RTH111B non-programmable thermostat, you need to carefully remove the old device. Follow these steps to ensure a smooth transition:

Carefully Detach The Old Device

Start by turning off the power to your heating and cooling system at the circuit breaker. Then, remove the cover of the old thermostat to access the wiring and mounting screws. Carefully detach the thermostat from the wall, taking care not to damage the wires.

Labeling Wires For Easy Reference

As you disconnect the wires from the old thermostat, label each wire according to its terminal using the provided stickers. This step is crucial for easy reference when connecting the wires to the new Honeywell RTH111B thermostat. Take a photo or make a note of the wire connections for added assurance.

Mounting The New Thermostat

To mount the new Honeywell non-programmable thermostat RTH111B, first, turn off power. Remove the old thermostat and label wires. Connect wires to the new thermostat following the manual. Secure the thermostat to the wall plate and restore power to complete the installation.

Positioning The Wall Plate

To begin the installation process of your Honeywell non-programmable thermostat RTH111B, start by positioning the wall plate. Choose a location on a flat, vertical interior wall, away from any heat sources, drafts, or direct sunlight. It’s important to pick a spot where the thermostat wiring will reach your heating and cooling system.

Ensure that the wall plate is positioned at eye level for easy access and readability. Use a level to make sure it is straight before marking the holes for drilling. Once the location is determined, mark the positions for the screw holes using a pencil or marker.

Securing The Thermostat Base

After marking the holes, drill them and insert the wall anchors. Secure the wall plate by attaching it to the wall using the provided screws. Once the wall plate is securely in place, you can proceed to attach the thermostat base to the wall plate.

Align the thermostat base with the wall plate and push gently to snap it into place. Ensure that the base is level before tightening the screws to secure it to the wall plate. Once the base is securely fastened, you can proceed with wiring the thermostat.

Connecting The Wires

Discover how to seamlessly connect the wires for the installation of the Honeywell Non-Programmable Thermostat Rth111B. Follow the easy steps provided to set up your thermostat for efficient and effective temperature control in your home.

Wiring Diagram Guide

Attaching Wires To Corresponding Terminals

Finalizing The Installation

After successfully wiring your Honeywell Non-Programmable Thermostat RTH111B, it’s time to finalize the installation.

Attaching The Thermostat Faceplate

Carefully align the faceplate with the backplate, ensuring the mounting holes match.

Gently push the faceplate onto the backplate until it snaps into place securely.

Restoring Power And Testing The Thermostat

  • Restore power to the HVAC system by turning on the corresponding circuit breaker.
  • Set the thermostat to your desired temperature and mode.
  • Wait a few minutes to ensure the system responds correctly.
  • Verify that the heating or cooling system turns on as expected.
  • Test the fan to confirm proper operation.

Troubleshooting Common Issues

Installing a Honeywell non-programmable thermostat Rth111B is a great way to improve the efficiency of your home heating and cooling system. However, like any other electronic device, you may encounter some issues while installing and using it. Here are some common issues you may encounter and how to troubleshoot them.

Addressing Wiring Problems

If you have installed the thermostat and it is not working, there may be a wiring problem. Check the wiring connections and ensure they are properly connected. The thermostat requires a 24-volt power supply to function, so ensure that the power supply is connected correctly.

If you are not sure about the wiring, refer to the wiring diagram in the installation manual. Also, make sure that the wires are not damaged or broken. If they are, replace them with new ones.

What To Do If The Thermostat Doesn’t Power On

If the thermostat does not power on after installation, check the batteries. The Rth111B requires two AA batteries to function. Ensure that the batteries are correctly installed and that they are not dead. If the batteries are dead, replace them with new ones.

Another reason why the thermostat may not power on is a blown fuse or a tripped circuit breaker. Check the fuse or circuit breaker and reset it if necessary.

If the thermostat is still not powered on, it may be defective. In this case, contact the Honeywell customer support team for assistance.

By troubleshooting common issues related to wiring and power supply, you can successfully install and use the Honeywell non-programmable thermostat Rth111B. It is a cost-effective way to improve your home’s energy efficiency and comfort levels.

Maintenance Tips

To install the Honeywell RTH111B non-programmable thermostat, start by turning off the power to your heating and cooling system. Remove the old thermostat and label the wires before disconnecting them. Then, simply follow the instructions provided with the new thermostat for a smooth installation process.

Regular maintenance of the thermostat is essential for optimal performance.

Routine cleaning and care should be done regularly to ensure the proper functioning of your Honeywell non-programmable thermostat RTH111B.

Routine Cleaning And Care

– Dust the thermostat with a soft, dry cloth. – Do not use water or liquid cleaners. – Inspect for any visible dirt or debris. – Ensure the thermostat is mounted securely. – Check for any signs of wear or damage.

When To Seek Professional Help

If the thermostat malfunctions, call a professional. – Incorrect wiring should be handled by a professional. – If the thermostat displays error codes, seek help. – If you are unsure about any maintenance, consult a professional.

Frequently Asked Questions

Does Honeywell Rth111b Require C Wire?

Yes, Honeywell RTH111B requires a C wire for power. It is essential for proper functioning.

What Color Wires Go Where On A Honeywell Thermostat?

The color wires on a Honeywell thermostat typically go as follows: red to R, white to W, green to G, yellow to Y, and sometimes blue to C. It’s important to consult the manual or a professional if unsure.

How Do I Set A Non-programmable Honeywell Thermostat?

To set a non-programmable Honeywell thermostat, adjust the temperature using the up/down buttons. Press “Hold” to set and maintain the desired temperature.

How To Wire A Honeywell Thermostat With 4 Wires?

To wire a Honeywell thermostat with 4 wires, connect the wires to the corresponding terminals labeled R, W, Y, and G. Ensure the power is off before wiring. If unsure, consult a professional for assistance.


Installing the Honeywell Rth111B thermostat is a straightforward process that can greatly improve energy efficiency. By following the step-by-step instructions provided, you can easily enhance the comfort of your home while reducing energy costs. With its user-friendly design, this non-programmable thermostat is a practical choice for any household.

Scott Maupin