Will this thermostat loose all programmed settings when the battery is replaced? I have a programmable thermostat I thought was good, but after a few years the backlight won't turn on anymore and won't improve when you put fresh batteries in it. AND when you do put fresh batteries in it, it looses all your programmed settings (temp, etc). It's a pain. This one looks nice (Honeywell RTH8500D) as well as a Filtrete 3M30 at home depot, that's half the price, but I can guess which is better. Thanks for any info.Also - anyone know the warranty length on this Honeywell? Will this thermostat loose all programmed settings when the battery is replaced? I have a programmable thermostat I thought was good, but after a few years the backlight won't turn on anymore... » Read More Will this thermostat loose all programmed settings when the battery is replaced? I have a programmable thermostat I thought was good, but after a few years the backlight won't turn on anymore and won't improve when you put fresh batteries in it. AND when you do put fresh batteries in it, it looses all your programmed settings (temp, etc). It's a pain. This one looks nice (Honeywell RTH8500D) as well as a Filtrete 3M30 at home depot, that's half the price, but I can guess which is better. Thanks for any info.Also - anyone know the warranty length on this Honeywell? « Show Less
607038
The memory in these is non-volatile, meaning you won't lose your settings when replacing the batteries.
607039
Thanks Geronimo, I ended up buying the Honeywell touch screen smaller one and LOVE it.
945020
Feb 19, 2016: I just talked to the Honeywell customer service department (couldn't understand name) and he said you can buy this thermostat anywhere you want, but you must have a contractor install receipt showing it was installed by a contractor - or they wouldn't honor any of the warranty (referring to TH9320WF5003 thermostat). I'm not trying to contradict what others have said - just reporting on what Honeywell customer service told me today.
1240198
Ken:Honeywell is using a generic photo for all of the FocusPro thermostats on their site. The ones that you can program for daily difference in use have three buttons at the bottom; the one you are ordering here (model 5000) only has two: fan on/auto and heat/cool/off.As I said in my review, if you don't need the program capability, then this one will do quite nicely.Brian
1999469
Is this a new thermostat? If so, I'd return it. I have the identical unit and mine adjusts to at least 80. There is nothing in the instructions to explain why you would be having the problem. Also, Honeywell has a good website for instruction PDF downloads.
72644
Yes it does. yourhome.honeywell.com/home/Products/Thermostats/Digital-Non-Programmable/RTHL3550D.htmAnd to the genius who said no thermostat has an auto mode: Practically every thermostat retailing for more than $30 has this capability. Might I suggest you refrain from offering advice on subjects you clearly know absolutely nothing about?
42267
If it chirps every 30-40 seconds, the battery may need replacement. I can't recall if there is any "expiry" date on the detector - is it exactly 1 minute? I suggest tossing in fresh batteries and maybe clean by vacuuming around the detector with a brush attachment. And see if that stops the beeping? I thankfully have not had the chirping problem until after about a year and it was because the battery was weak. Is it all of them beeping at once? I would hardly think all 4 could fail at the same time, but try the obvious approach first. Otherwise, you may have defective detectors or your wiring may be faulty. If it chirps every 30-40 seconds, the battery may need replacement. I can't recall if there is any "expiry" date on the detector - is it exactly 1 minute? I suggest tossing in fresh batteries and maybe clean by vacuuming around the detector with a brush attachment. And see if that stops the beeping? I thankfully have not had the chirping problem until after about a year and it was because the battery was weak. Is it all of them beeping at once? I would hardly think all 4 could fail at the same time, but try the obvious approach first. Otherwise, you may... » Read More If it chirps every 30-40 seconds, the battery may need replacement. I can't recall if there is any "expiry" date on the detector - is it exactly 1 minute? I suggest tossing in fresh batteries and maybe clean by vacuuming around the detector with a brush attachment. And see if that stops the beeping? I thankfully have not had the chirping problem until after about a year and it was because the battery was weak. Is it all of them beeping at once? I would hardly think all 4 could fail at the same time, but try the obvious approach first. Otherwise, you may have defective detectors or your wiring may be faulty. « Show Less
557819
I have had no clicking problems with this thermostat. I never reprogrammed it. I change the setting with the arrows on the front panel. It holds that setting for three hours. Even when it comes on there is no noticeable click.
1504780
I got this message from Amazon.com. I have had this for 1-1/2 years. We have power outages all to often where we live, however I've never had a problem with the programmable functions. My biggest complaint with the device was that the manual function only works for one zone at a time. In other words, you can't set it on zone one in manual mode and have it go through all the zones.
318733
No, it doesn't. It resets if you unplug it. Regardless of whether it stays plugged in or not, every time you turn it back on you have to manually set the "thermostat" function and temperature, although if it hasn't been unplugged it will default to the last temperature you set it on. There is a light on the front panel so that you know whether it's on automatic/thermostat or just "on".
1868406
Reset automatically? It works just like a thermometer, changing as the temperature and humidity changes. I just bought it, turned it on, and check it daily. It will run till the battery goes out, but has no particular programming buttons. Hope that helps.
580487
That would be a question for Honeywell ... not Amazon customers. It's an awesome thermostat and I have no clue how someone would break a screen, might be cheaper to just buy a whole new unit.
340811
Here is Honeywell's response to my email on the differences. (see below)The RTH9580WF is a Retail Do-It-Yourself thermostat available through any retail stores like Home Depot, Lowe's etc. This thermostat comes with 1 year warranty from the date of installation or by 4 Digit Serial/Date Code of the thermostat. Whereas TH9320WF5003 is a professionally installed thermostat installed and available through licensed HVAC contractors only. The professional installed product TH9320WF comes with 5 year of warranty from the date of installation and warranty is honored by your installer or other licensed HVAC professionals only. Here is Honeywell's response to my email on the differences. (see below)The RTH9580WF is a Retail Do-It-Yourself thermostat available through any retail stores like Home Depot, Lowe's etc. This thermostat comes with 1 year warranty from the date of installation or by 4 Digit Serial/Date Code of the thermostat. Whereas TH9320WF5003 is a professionally installed thermostat installed and available through licensed HVAC contractors only. The professional installed product TH9320WF comes with 5 year of warranty from the date of installation and warranty is honored by your installer... » Read More Here is Honeywell's response to my email on the differences. (see below)The RTH9580WF is a Retail Do-It-Yourself thermostat available through any retail stores like Home Depot, Lowe's etc. This thermostat comes with 1 year warranty from the date of installation or by 4 Digit Serial/Date Code of the thermostat. Whereas TH9320WF5003 is a professionally installed thermostat installed and available through licensed HVAC contractors only. The professional installed product TH9320WF comes with 5 year of warranty from the date of installation and warranty is honored by your installer or other licensed HVAC professionals only. « Show Less
500543
This question made me think a bit.....I don't recall ever having to reset the thermostat. And, I know we've lost power a few times. Hope this helps!
1100303
Mine remembers the last used temp. I don't change that much. I altered one of the presets slightly for my favorite temp, although don't recall that I made it the startup default. But it pops up to that temp everytime I turn it on. Just checked it again for you simply altering it on the fly, turned off, and it popped right back to the new (last set) temp. Fine unit; don't know what I did without it.
948334
I don't have an exact answer about battery life. But my sort of reliable memory is, 6 or 9 months. The batteries seem to last longer in the Honeywell. When the low-indicator symbol appears it gives you a week or two to replace the batteries. But the problem is I sometimes failed to notice the symbol. It doesn't matter in one way--when you replace the batteries you have to completely reprogram your 7 days :(.
251154
I personally don't have this device anymore, however, If my memory serves me right I believe so. On the other hand, I would not recommend this product as it's not entirely reliable a lot of resetting from what I recall. It may have just been a bad model but in any case for the money I would rather recommend to anyone looking to have wireless access to their thermostat to simply upgrade to the latest Honeywell Smart. It's really reliable and has Wifi built in. No need for exterior sensor as this picks up your local temperature from the web. I've had one now for close to a year and I must say I love it. Honeywell | Wi-Fi Smart Thermostat
1318957
It has a battery for memory back up, but it runs off the C wire. Be sure your thermostat setup has a C wire.