Questions & Answers
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QuestionHow do I know if I have a C-wire in the wall where my old Honeywell thermostat was? Is there a way to make this work if I do not have a c-wire?
- Answer You can use the fan or “g” wire to Power it.
- Answer You will need to have a "C" wire in order to use this. If you do not have one, there are additional instructions on how to wire it and it includes the wire you can use to jump it in your thermostat. If you have minor DIY skills, you should have no problem with the installation.
- Answer You will need to remove your old thermostat to determine if you have a C wire. Just because it's there don't assume it's real. You will need your system powered on to test. You need to CAREFULLY, using a volt meter set on AC, measure the voltage between the R ( could be RC in some cases) wire and the C wire. You should see 24 Vac. It could be as high as 29 Vac when nothing is running, and nothing will be with your thermostat removed. If you have the voltage then the C wire is real and you can continue. If not consider having your system updated to include it.
QuestionHoneywell says we need a redlink module for the internet interface. Instructions do not mention it and all the reviews says easy to install and program so I need one?
- Answer Honeywell RTH9585WF wirelessly connected to my home Wi-Fi network just like a tablet or laptop. No additional modules were required.
QuestionFor those who use this thermostat for both heat and AC, say it’s July and you have the nighttime temperature set to 72 until you leave at 8am. Then it’s set for 78. Will the heat go on to make up that 6 degree difference? I know it shouldn’t but..:.
- Answer Hi there! The Honeywell Smart Color Thermostat does have the ability to be setup for Auto Changeover; this will allow the thermostat to turn on heating or cooling as needed based on your schedule setup. However, the heating and cooling set points must be at least three degrees apart and the heating set point is unable to be set above the cooling set point. So for your example, if your cooling set point is 72 degrees, you would only be able to set your heating set point to 69 or lower. To answer your question, this thermostat will not turn your heat on to bring your home up to the 78 degree set point you have chosen for the next scheduled period. It will allow the house to naturally get that warm if it is able to, and if it does, the thermostat will turn your cooling on to maintain the 78 degrees if necessary. I hope this helps!
QuestionWill this operate honeywell whole house humidifier, i see it has humidity on display put no clear answer if can control so can remove the 2nd control I have
- Answer Hi there! Thank you for reaching out to us, this thermostat will not control a humidifier it can only show the inside and outside humidity on the screen. If you are looking for a compatible thermostat that can control humidity, please call us at (855) 733-5465 Monday-Sunday 7 am to 10 pm CST and reference case 01026620 and we will be happy to recommend you a compatible thermostat. Have a wonderful weekend!
QuestionHi. I have a regular Honeywell thermostat. I know for sure it uses AA batteries. Does this mean that I don't have c wire and then I won't be able to install the new smart thermostat?
- Answer You will need to confirm if you have a common wire or not. You can not tell simply by the thermostat needing batteries or not. Some thermostats used the batteries for display illumination or to hold the program memory in case of a power outage.
QuestionWhen using the app for this thermostat, does it display the current temperature & humidity in the home as well as temperature & humidity outside?
- Answer Yes. The app displays both inside and outside temp and humidity.
QuestionDoes this support the same wiring configurations as the Nest 3rd gen? I live in an apartment and cannot run extra wiring for the HVAC system.
- Answer Yes, it does. I would double check the compatibility on Honeywell's website but I went from Nest to this as well (in an apartment too) and it was a smooth transition. My system has Central air, forced air gas furnace, and a central fan (4 wires with the ground, looks identical to your picture).
- Answer Yes, but you have to enable Automatic changeover in the Advanced Preferences screen as this feature is off right out of the box.
QuestionIf internet connection is lost, does the system keep running at the last setting, remain off until reset, or does it turn back on when internet is restored?
- Answer It keeps running. the internet part is pretty much to communicate with your phone.
- Answer If your referring to a thermometer to give you the outside temp, no, but it does give you the current outside temp via your wi-fi connection on the thermostats display
- Answer You can control different models of Honeywell. You give each a separate name.
- Answer Yes, I have this thermostat installed on two heatpump systems that have Aux heat coils. My systems have an automatic low outdoor temperature cut out relay that cuts off the heatpump and energizes the heating coils whenever there is a demand for heat and outdoor temperature is below 27 degrees. When outdoor temperature goes back above 30 degrees, it switches back to the heatpump. The thermostat can also be set to emergency heat in case there is a problem with the heatpump itself. My thermostats have wires connected to the following points: C R Y G O E/Aux During the thermostat setup, you will be prompted with questions regarding Y, O and E/Aux, I chose the default prompts and my systems work fine. Hope this helps.
- Answer Hi Doug! This Smart Color WiFi Thermostat has temperature limits that you will be able to adjust by going to Settings> Preferences> Advanced Preferences, then press 'Next' until you see "Temperature Limits". You can adjust the Range Stop by pressing the up/down arrow for heat and cool and then you have to press 'Done' and select 'Yes" to save the changes. Have a great weekend!
QuestionI have a heat pump with Auxiliary Heat (AH) that I select when the outdoor temperature falls below 32F. I set it manually on my current thermostat. Is it possible to program this thermostat to automatically turn on AH when it is below 32F outdoors?
- Answer Hi TedinICT! Thank you for reaching out to us. The Aux Heat cannot be adjusted or set on these thermostats. The thermostat work with an algorithm that senses when the system is taking too long to have the heat on, that's when it is going to call for the auxiliary heat. If you have Emergency Heat (E wire connected to E terminal) you will be able to turn it on manually. When you select the "Mode", the status will appear depending on how the system is working, (Heat on, cool on or Emergency Heat). If you have further questions, at your convenience, please contact us at 1-855-733-5465. We have opened a case #00776647 for you. Thanks!
QuestionMy thermostat was working incredibly and suddenly I cannot change the program while I'm away from home, and have to manually change it in the house. Not sure what I turned off, but I did something. Thanks! ,
- Answer I had some trouble with mine saying sensor error replace thermostat. I reset the tstat to factory erasing everything I programed and it seems to have fixed the problem. Hope it works for you. You might also have a wifi problem, wifi problems. Usually won't let you sign in. I would just reset and start over
- Answer No - but depends on your DIY comfort level. If your existing thermostat has a "C" (common) wire supplying continuous 24 VAC, then this should be a simple change out. If your thermostat has 3 wires (eg heat and fan or AC and fan) then you'll need to pick up 24VAc either by installing a plug-in transformer nearby or by running a new line from your furnace. Honeywell posts a lot of DIY videos to support installation of their thermostats so you might give those a look to see if it looks OK to you. Good luck!
- Answer Yes, just select Autp instead of heat or cool.