Gain complete control of your Robertshaw Climate RS4000, RS5000, or RS6000 series thermostat simply by adding the RS456-WIFI™ add-on Wi-Fi module to your new or existing thermostat. That’s right, even if you have any of the eight models listed below and had them installed 10 years ago, you can still upgrade your thermostat to a smart Wi-Fi thermostat with the plug-in module. Simply remove the battery compartment and replace it with the Wi-Fi module*, download this app and follow the on-device instructions.

Compatible with all:
RS4110 – 1-Heat/1-Cool non-programmable thermostat
RS4220 – 2-Heat/2-Cool non-programmable thermostat
RS4320 – 3-Heat/2-Cool non-programmable thermostat
RS5110 – 1-Heat/1-Cool non-programmable, 5-2 day programmable thermostat
RS5220 – 2-Heat/2-Cool non-programmable, 5-2 day programmable thermostat
RS6110 – 1-Heat/1-Cool non-programmable, 7-day programmable thermostat
RS6220 – 2-Heat/2-Cool non-programmable, 7-day programmable thermostat
RS6320 – 3-Heat/2-Cool non-programmable, 7-day programmable thermostat

Massive HVAC Equipment Compatibility:
The thermostats above will work on nearly all HVAC equipment found in over 95% of homes in the US**. Works with Gas, Electric, Oil, Heat Pump and Millivolt Systems. Does not work with line voltage (electrical baseboard heat) systems.

Very fast to install. Very easy to use:
Gain powerful control of one or hundreds of thermostats. From the instant you’re connected, the RS456-WIFI™ app becomes your powerful assistant, allowing you to control all features of the thermostat from anywhere in the world you have Internet connectivity.

In-App Features:
• Single thermostat control
• Multiple thermostat control
• Location Grouping for Multi-Location control
• Logical Grouping for Multi-User control
• Multi-User control includes Owner, Contractor, Limited Access profiles
• Owner management of all user profiles
• Full thermostat feature access
• Auto changeover
• Fan control
• Flexible 5-2 Day, 7 Day, and Vacation scheduling (varies with thermostat model)
• Intelligent alerts
• Keypad lockout
• Local weather
• Local 7-day forecast
• A/C protection
• Secure network

* Requires common wire from HVAC equipment, or if none exists you can use the Robertshaw Climate RS-PWIRE Phantom Wire Kit™. Contact your local HVAC installer for installation.
**Information from United States Census Bureau, 2013
American Housing Survey

What's New

Version 1.1.4

• Stability improvements
• Improved Password Reset Process
• Added login with password link on PIN Page

Ratings and Reviews

Doesn’t work!


I bought 4 of the WiFi modules. They connect then disconnected. The app keeps crashing.Also once you plug in the module your indoor temp jumps to 80 and won’t read correctly.this needs work and shouldn’t have been released.nothing works.


Distribute North America, LLC
15.1 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Robertshaw Climate 2017


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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