Honeywell home rth9585wf1004 wi fi smart color thermostat manual

1.0 out of 5 stars Sensor broke after about 36 hours
Reviewed in the United States on August 24, 2018

Recieved and installed Tuesday and working fine, and 36 hours later in Thursday midday I recieved a notification on the app that my thermostat had thrown an error code. Checked out the Tstat and it said “Faulty Sensor”, and it would not do anything but blow the fan. The error code said that “A sensor in my thermostat had encountered an error and my thermostat needs to be replaced”. How frustrating on a hot August day! I tried to call Honeywell customer service and I hung up after about 30 mins on hold. I replaced this with my old thermostat for now. I will be returning and I already ordered a Nest to replace this.

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Top reviews from the United States

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Reviewed in the United States on October 20, 2022

A better alternative to Nest. A few years ago, we had a nest generation blow the fan motor from our AC unit. The technician said that Nests can be known to do this, especially later generations and recommended Honeywell. I loved it so much, I purchased a second one for my upstairs HVAC unit to now be able to control both of them. I will say the smart function and getting it set up can be slightly a pain, especially if you're trying to add two thermostats to the app. If I recall correctly, you had to use a computer and a web browser to do it, as it cannot be done from the smart phone app. The app look is VERY functional, but definitely looks outdated. I could careless on how it looks, I haven't had a single issue with connecting or using the app.

I had to contact Honeywell support when I first installed the product and they were quick to provide me the documentation I needed specifically to get it rolling. Highly recommended.

Reviewed in the United States on August 9, 2018

While this thermostat may lack some of the modern "smart" features of competing products, its "smart-learning" ability can't be beat. With this feature, the thermostat learns how long it takes to heat or cool your house. It will then start the furnace or air conditioner so the house reaches the set temperature at the time you program. It really works.

I installed my first Honeywell smart-learning thermostat 20 years ago. That house had passive solar and radiant floor heat. The house got toasty warm during the day. With a traditional thermostat, it would not cool off enough for the heat to come on until after midnight. However, it took several hours for the floors to heat up enough to actually warm the house. So it would still be cold when we woke up. Then the sun would come out and heat the house to a comfortable temperature before the hearing system could catch up. Basically, then, the heat ran for several hours for no reason.

The Honeywell thermostats were smart enough to turn the heat on early in the evening. The floors were just warm enough when the house temperature started dropping to keep a uniform temperature. The thermostats even knew to turn the system off early, so the heating system would not overshoot and make the house too warm.

I tried a Nest thermostat at another house (conventional forced air heat and A/C, no passive solar). It worked fine and it looked nice. I never really liked the way it learned my schedule, so I ended up manually programming it. The automatic home/away feature was okay but not entirely reliable.

When I moved into my current house (conventional forced air hear and A/C, no passive solar), I gave the Ecobee 3 a try. It looked nice and has a nice interface. I never found the multi-room sensors that useful. The main thermostat tended to lose contact with them, perhaps because of the size of the house (aren't they supposed to be for larger houses?). They did help some rooms that don't heat or cool enough maintain a better temperature, but then other rooms get too hot or too cold. I found it better just to find a temperature at the main thermostat that keeps all of the rooms at close to a reasonable temperature. Plus my system actually ran more with the Ecobee, trying to get those outlier rooms to the set temperature.

What killed the Ecobee for me is that it almost destroyed my air conditioner. It worked fine all summer and for the first month of the heating season. But then one morning this terrible rumbling started coming from my roof (where the A/C unit is mounted). The Ecobee was trying to run my air conditioner in sub-freezing weather. Although it was set to heat, it would cycle the A/C on. The A/C would shut itself off, so as not to destroy itself, then the Ecobee would cycle it back on. I spent a lot of time on the line with customer support, who eventually concluded that the unit was defective. They offered me an RMA, but I couldn't trust that it wouldn't happen again.

So I went back to the Honeywell smart-learning thermostat. It took about a day for it to learn the heating times for my house. You can't set the temperature differential for cycling, but it keeps the temperature even to less than a degree without excessive cycling of the unit. For cooling, I set the thermostat to 73 F. It never moves off of 73 once it reaches that temperature.

Programming is easy. You get four temperature changes per day, like a traditional programmable. That is plenty for my needs. The touchscreen and app interfaces make the programming easier than with the older thermostats. Temporary and permanent holds are easy to set - just change the temperature and make it permanent or set a time when it should revert to the schedule (although that appears to be the time the system comes back on - it does not appear to use smart-earning to hit the programmed temperature at the time the hold expires). Changing settings remotely with the app is also simple. So far, I don't miss any features from the Nest or Ecobee. The Alexa interface isn't very good, but even with the Ecobee I found it more of a gimmick than useful. I haven't tried using IFTTT for additional controls yet.

The thermostat can be set to either home or business mode. The business mode has some additional programming options that would also be useful for home use. However, smart-learning is not available in business mode. I don't see why - if any developers are reading, please add smart-learning to the business mode. Make it an on/off option if necessary.

The one negative is that customer support is terrible and non-existent. I installed on a Saturday and had an issue. I tried to call and got a message that said due to high call volume the call could not be answered. It then hung up on me, no chance to leave a message or anything. I went to the web site which offers live chat. There was a message that chat was down and I should call. I tried email and eventually heard back after a week, but the suggested fix was something I had already tried and described in my original email.

The issue, in case you run across it, was that the thermostat would say "waiting for equipment" while the room temperature was well outside the set temperature. Eventually the A/C would turn on, run for a few minutes, then turn off and repeat the cycle. It may have been user error (I pulled it off and reinstalled), or it may have been something related to the smart-learning system doing its initial learning. But either way it resolved itself that day.

Reviewed in the United States on October 21, 2022

Upgraded my old clicky plastic thermostat to this sleek modern style. Can set temps, fan operation and even auto function from display. Connect to home Wi-Fi and control the thermostat from your smart phone app. Monitor and adjust temps and environment conditions when away from home. Also can change the background colors to match your decor or mood. Learned this little tip that at 2am your thermostat will change the screen color to white for one hour to prevent screen burn in. Nice! Honeywell will also email you a Energy Report that will detail your heating and cooling times, hours your system was off, avg temps. You’ll also get a comparison from the heating/cooling from the previous month.

Reviewed in the United States on October 30, 2022

Bought this to use at our lake home. It works awesome and allows us to change the temp so it is perfect when we arrive - cool in summer and heat in winter. Able to change to emergency heat quickly on an older unit that does not change on its own. The app works well. It was easy to install - just follow the directions. Love this so much going to change out my one at home with this unit as well!

Top reviews from other countries

1.0 out of 5 stars Misleading Pictures

Reviewed in Canada on August 20, 2019

The pictures of this thermostat in this ad and on the box, make it look like it has a big bright screen. It doesn't. It's a pathetic looking little thing, smaller than a cigarette pack. Clearing Honeywell is playing catch-up against NEST and other market leaders, and losing. I'm returning this this thing, feeling angry about being tricked.

1.0 out of 5 stars I am Very upset with 5 problems in it

Reviewed in Canada on November 21, 2019

1) It did not start my old furnus even though i used C-Wire Adapter, I dont think its compatible with furnus that have 2 wired system. ( R & W)
2) I ordered a new one but i received an old one, ( I found pen markes on the wire terminals, & found hand written note on the user manual)
3)Touch screen is not responsing so fast
4) Terminal holes are to thight that if you dont have strong wire and push it through, it does not get in, (It would be easier if wires could be attached by screws)
5) Its so hard (almost impossible) to separate the wall plate (The back part) and the screen unit.

1.0 out of 5 stars I am Very upset with 5 problems in it
Reviewed in Canada on November 21, 2019

1) It did not start my old furnus even though i used C-Wire Adapter, I dont think its compatible with furnus that have 2 wired system. ( R & W)
2) I ordered a new one but i received an old one, ( I found pen markes on the wire terminals, & found hand written note on the user manual)
3)Touch screen is not responsing so fast
4) Terminal holes are to thight that if you dont have strong wire and push it through, it does not get in, (It would be easier if wires could be attached by screws)
5) Its so hard (almost impossible) to separate the wall plate (The back part) and the screen unit.

Images in this review

3.0 out of 5 stars Short on details

Reviewed in Canada on September 4, 2019

Unfortunately we couldn't use the Thermostat. I didn't realize (from the lack of information in the description of the product) that we would be giving up the function of the 2-speed fan of the furnace while having to accommodate the missing"C" wire. I had installed one before in a different home, but that particular furnace didn't have a 2-speed fan to begin with. Check the product description before you order.

1.0 out of 5 stars Disappointed. RETURNED.

Reviewed in Canada on January 11, 2020

It said add a C wire on the instructions, so I bought a C wire but turns out they wanted a specific Honeywell C wire. The customer service people were unhelpful even though we video chatted with them as to what specially the problem was. So
as a moment of frustration, I took out the c wire and it started working but then it would turn off and on and kept doing that. I went to Home depot where they sold the same damn thermostat and they all were telling me, they did not sell the c wire associated with it, I would have to order it from Amazon. Which would take another 2-3 days.
So, I took it off and installed my old one, and I had to return both the C wire and the Thermostat.
I returned it and got a Nest Thermostat on sale.

5.0 out of 5 stars Great smart thermostat.

Reviewed in Canada on October 23, 2022

This smart thermostat is so helpful. Makes your house more efficient when you program it to your setting. It's easy to install if you have the right wires installed originally. Love the touch screen. I installed this in my home and my rental to program the heat settings.

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