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7-Day Universal Programmable Thermostat
  • Model RTH7500D
  • Internet #203534981
  • Store SO SKU #183706

7-Day Universal Programmable Thermostat

$5015 /each
Discontinued Model:

Model # RTH7500D

Internet #100400023

Honeywell 7-Day Programmable Thermostat with Backlight-DISCONTINUED

Discontinued Honeywell

7-Day Programmable Thermostat with Backlight-DISCONTINUED

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Frequently Bought Together

Product Overview

The Honeywell 7-Day Programmable Thermostat with Backlight offers nearly effortless programming with an extra-large display that is straightforward and user friendly. It has precise temperature control to keep your house the optimal temperature when you are home and away. It is easy to program and retains its memory after a power outage.

  • 7 day menu-driven programming with 4 program periods per day
  • Armchair programming allows you to program the thermostat from the comfort of a chair
  • Clock automatically adjusts for daylight savings time
  • Includes change reminders for filters and low batteries
  • Universal application, works with conventional and heat pump systems up to 2H/2C
  • Precise temperature control of +/- 1 degree Fahrenheit
  • Large, backlit display shows room temperature, set temperature and current time all at once
  • Program is retained in memory in the event of power outage
  • Selectable temperature range stops
  • Eco-options approved product
  • Save up to 33% on energy costs with a programmable thermostat (if used as directed)
  • Eco-options approved product

Info & Guides

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Display height (in.)
1.5 in
Display width (in.)
2.75 in
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Battery Power Type
Lithium Coin
Battery Size
Color Family
Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Battery Operated,Daylight Savings Time Ready,Filter Monitor,Low Battery Indicator,Removable Interface
Periods per Programmable Day
Thermostat Product Type
Programmable Thermostat
Thermostat Type
Heating and Cooling
Voltage (volts)
Works With
24-Volt Heating & Aiir Conditioning System

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year limited warranty

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Customer Questions & Answers

can i use this thermostat with a three zone system

Asked by: Anonymous
In zoning systems you typically need one thermostat for each zone. Depending on your system, the existing thermostats and how they are wired and whether or not your system includes or uses a zone control panel, it may be possible for the Honeywell RTH7500 to be used as a replacement thermostat. What we would recommend is gathering the above information and then contacting the Honeywell Forced Air Zoning Hotline while at your system. They are open from 7:30am to 4:30pm, Monday through Friday, and can be reached at 1-800-828-8367.
Answered by: Honeywell Support
Date published: 2015-09-17

Red light lit in upper right corner...Why?

Red light lit in upper right corner...Why?
Asked by: Gala
not familiar with red light on the Honeywell Thermostat shown in HD's email. In the 7 day wifi model the red light indicates that the backup heat (electrical strip) is on This is true of most thermostats to indicate you are using more expensive back up heat. It will come on if the set temp is 2 or 3 degrees above the actual temp- or the outside compressor is not running. It will also light when thermostat is set for emergency heat mode.
Answered by: oldmanhandyman
Date published: 2017-01-12

Can this run on batteries alone? I have a 2 wire system so I need battery power

Asked by: curious
The Honeywell RTH7500 is a dual powered thermostat. It can be powered by just batteries, directly from your heating and cooling system or from the system with batteries as a backup. If you have more specific questions, please contact the Honeywell Consumer Technical Support Line at 1-800-468-1502. Sincerely, Honeywell Customer care
Answered by: Honeywell Support
Date published: 2015-09-20

What is the lowest temperature that can be set

What is the lowest temperature the heat can be set to with this thermostat?
Asked by: Jason
The temperature set point ranges for the Honeywell RTH7500 are: 40 F to 90 F for heat and 50 F to 99 F F for cooling. If you have additional questions about the Honeywell RTH7500 and your specific application, please call the Honeywell Consumer Technical Support Line at 1-800-468-1502. Sincerely, Honeywell Customer Care
Answered by: Honeywell Support
Date published: 2015-09-17
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Customer Reviews

7-Day Programmable Thermostat with Backlight-DISCONTINUED is rated 4.5 out of 5 by 36.
Rated 5 out of 5 by from Easy installation, tips The directions were easy to follow and the unit easy to install. Three tips: 1 the directions don’t explain how to separate the thermostat from the wall plate. It pulls apart, just grab each and pull. 2 The screws that hold the wires down are very small. Before you start be sure you have a screw driver that will fit. 3 It uses two AA batteries as backup power but they are not included. I would recommend and buy this thermostat again.
Date published: 2011-09-18
Rated 4 out of 5 by from Okay for the most except The thermostat is pretty decent, works well so far, only there is one thing I would change about it. Anytime you want to set multiple schedules for select days, you have to push "Save" after each set schedule, and then start over again to set the next schedule. Thus, what I would change is, after saving a schedule, the unit should remain in Edit mode, so you can select other days for the next schedule. And then once you are completely finished setting and saving all your schedules, there should be a "Done" or "Finished" button that will take you out of "Edit/Schedule" mode.
Date published: 2011-12-13
Rated 5 out of 5 by from Nice Product....Easy Update THE UPS…. Very nice thermostat Easy to install Looks nice on the wall Backlighting is easy to see and easy on the eyes at night It’s a Honeywell THE DOWNS The users manual is a little tricky when configuring thermostat My recommendations Make sure that you know as much about your heating and cooling systems as possible BEFORE switching out your thermostats, read through programming section once you DO know and circle your codes so you can breeze through set-up and make sure that you use the provided labels to tag the wires BEFORE unhooking them. I took a picture with my camera and printed it out and taped it to the wall as a reference. It comes preset with energy star ratings to save you money I left my alone and I guess I will check the gas and power bill next month to see the savings. I installed this model a few years back in my mom’s house and she has had 5 years of trouble free use with it. It is compatible with most all types of heating and cooling systems but if you need help call the 1-800 number and the staff at Honeywell will be ready to help you out.
Date published: 2010-04-05
Rated 5 out of 5 by from Easy to Install, Tricky to Program I have a heat pump/furnace combination. They take you step by step marking the wires coming out of the old thermostat, so installation is easy...a very small screw driver (for the heads of the wire terminals), regular screw driver for two mounting screws, hammer (for plastic screw holders),wire cutters (if you need to clean up the old wire), and drill with 3/16 or 3/32 inch bit depending on wall type. For simple installations, the programming is super easy. For more complicated AC/Furnace combinations there are 'functions' that need to be programmed into the thermostat. I ended up calling the 800 number and they led we through have to press a button twice (where the instructions indicate once) and hold of of them down longer than the five seconds the instructions indicated to get the function screen to come up. From there on, it was pretty easy. The Honeywell call center was, knew the answer quickly, etc. Operation of the unit is very good.
Date published: 2010-07-14
Rated 5 out of 5 by from Does exactly what it is supposed to Our old thermostat was attached with duck tape. Having rambunctious cats around, I was in constant fear of them breaking it and getting mercury poisoning, so I was very determined to replace our thermostat. If you want to do it yourself, please follow instructions carefully and make sure to carefully mark all your wires. We made that mistake and ended up having to bring in a professional to install it. But that's our fault, not the fault of the thermostat. Once we got it installed, it works fantastic. It's nice to be able to set the house to the exact temp. we want, not to have that "fiddle room" you get with the old fashioned thermostats. It looks nice on the wall too, rather than some clumsy dial or box. The timers work perfectly, and it's nice not having to remember to set the heat up or down at certain times. We have it set to go low at night and then to go up about an hour before we wake up, so no more, "I don't wanna get up, it's too cold out there!" We couldn't be more pleased with the unit.
Date published: 2012-02-14
Rated 4 out of 5 by from Easy install This model was installed in 15 minutes, as advertised. Need to go thru the user's manual carefully as there are many programming functions. Need to know the type of heating/cooling system first, as there are many functions with programming features that depend on the type of heating/cooling system. I have a heatpump and the programming was a easy as soon as I understood which functions to program or avoid. Unit works well. Love the resolution of the daily heat/cool functions, with warning for filter change.
Date published: 2009-08-23
Rated 5 out of 5 by from Should have bought this one the first time I bought this to replace a 3 year old programmable Rite Temp. I never could get the Rite Temp to work properly, it was hard to program and began turning on the A/C even when set for heat. The Honeywell was much easier to program and works as expected. The backlight is a really nice feature. I will be buying another Honeywell stat for my basement zone.
Date published: 2012-01-31
Rated 5 out of 5 by from Very Easy Installation Very easy to install especially since I replaced a Honeywell in a home built in 2002. Programming was straight forward. Before doing so, plan out the times and temperatures ahead of time. This will make the process even quicker. Would be cool if the display could be permanently backlit instead of going dark after a few seconds.
Date published: 2006-10-14
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