I’ll list some problems I’ve having with Honeywell TH8320ZW1007 with vera 2 :
when I had the thermostat on a non schedule mode that means It was sole controlled by the vera 2 controller everything appeared to be fine… but one day the thermostat was showing a message “LOST CONNECTION” and it was non responsible from the zwave point of view… so I remove the thermostat from the wall socket and put it back right after and It came back to work … and after some days " Lost Connection" again…
So I decided to disable all scenes that regarded the Honeywell TH8320ZW1007 and I setup it own scheduling so now no more “LOST CONNECTION” however I noticed some issues
2.1) very pour updates on the UI in which regards temperature and no updates on “Set heat” temperature…
2.2) setting fan modes using vera 2 will fail or be disregarded by the thermostat.
2.3) setting fan modes using vera 2 may disrupt the fan scheduling on the thermostat. ( critical to me)
So I live in Canada so no need to say that a thermostat operation is very critical to me.
my question is anyone is having problems like this one with vera 2.
2)Yesterday somehow the vera controller when I tried to set the fan mode triggered a malfunction on the thermostat that put it on save mode and on permanent hold.
I opened a ticket with support. And I start to think about remove the Thermostat from the zwave network.
I reset the Honeywell TH8320ZW1007 so vera now is pulling from it again ( the thermostat was showing “lost connection”).
So then I tried to remove it from vera2 but the operation fails every time...
I guess I will need to reset all zwave network from vera 2 to remove the thermostat from it.
I just bought one of these thermostats from Amazon…to replace a 1 year old 2Gig Z-Stat which periodically loses connection. It seems like running a “heal” on the Vera 2 get the 2Gig working again but does not instill confidence. I need this to work well once the weather drops consistently below freezing as this is a lightly uses vacation home in MI and I am not able to get there quickly if the thermostat stops working.
I looked at the new Trane / Schlage version but confirmed with Reconsys (the actual manufacturer) that Trane still specifies they hard-code a minimum setpoint of 55F. The Reconsys TZ45 can be set to 43F. The Honeywell to 40F. I plan to use 40-45F so Trane was out. Intermatic and Wayne-Dalton look alike, seem to have more complaints and I worry they are being withdrawn from the market since they seem on sale very cheap and less available. Homwerks looks like the 2Gig which is made by RadioThermostat. RadioThermostat said I should add more devices to my network to make it stronger…I did that and still have the same issues…so I am trying a different brand. My other thought was to switch to WiFi enabled stats since WiFi is a more powerful radio and maybe more robust…I guess that will be next if the Honeywell doesn’t work well.
I realized that that keep a thermostat (Honeywell TH8320ZW1007) controlled by vera in my setup is unreliable as I`m experiencing (Lost Connection) errors so what i did was to enable the scheduling on the thermostat and disable/delete all scenes to it.
So now a Lost connection won’t make my house freeze on the Canadian winter.
Update of today : ( trying to get rid of “Lost connection” )
execute a heal network from vera 2. ( no changes on the Lost connection on the thermostat)
I reset the thermostat using the function ( 0710 ) … removed it from the wall socket for few seconds.
re-configured / reviewed all Installer setup functions.
tried to execute again ( rf10 - 0) to remove the thermostat from vera 2 … and action failed as result again.
execute (rf20 - 1) to send node to vera 2 ( desperation !!)
put back vera on power source from the wall outlet.
execute a heal network from vera 2 .
So now I can again pull from the thermostat and get some stats from it.
Lets see how long it will take to a Lost connection error again.
Today just noticed that the thermostat is showing again “Lost Connection” and vera 2 is unable to send or poll anything from it.
So my question is the problem is on Vera 2 or on the Thermostat?
I called Honeywell yesterday they said I need to call a licensed contractor and pay for his labor to check on the problem… and he also said there is no complaints about “Lost connection” errors to TH8320ZW1007 … I find hard to believe.
I also just learned that some users of vera 2 had problems with other types of thermostats so my question is where is the problem? on the thermostat or on the vera 2 controller? on the setup? interferences?
It’s as far as an another zwave device a wall switch that is working fine… they are at around 3 meters or 10 feet from the Vera 2 controller.
In my network I have more 4 other zwave devices all working fine.
However the thermostat is the most complex device with more possibility to fail or have bugs on its side and the Vera 2 side.
Since the last zwave network reset / vera upgrade / and set vera to use 2.78 insted 3.20 , the thermostat Honeywell TH8320ZW1007 didn’t had any “lost connection” episodes.
[quote=“bcbix001, post:5, topic:169560”]I just bought one of these thermostats from Amazon…to replace a 1 year old 2Gig Z-Stat which periodically loses connection. It seems like running a “heal” on the Vera 2 get the 2Gig working again but does not instill confidence. I need this to work well once the weather drops consistently below freezing as this is a lightly uses vacation home in MI and I am not able to get there quickly if the thermostat stops working.
I looked at the new Trane / Schlage version but confirmed with Reconsys (the actual manufacturer) that Trane still specifies they hard-code a minimum setpoint of 55F. The Reconsys TZ45 can be set to 43F. The Honeywell to 40F. I plan to use 40-45F so Trane was out. Intermatic and Wayne-Dalton look alike, seem to have more complaints and I worry they are being withdrawn from the market since they seem on sale very cheap and less available. Homwerks looks like the 2Gig which is made by RadioThermostat. RadioThermostat said I should add more devices to my network to make it stronger…I did that and still have the same issues…so I am trying a different brand. My other thought was to switch to WiFi enabled stats since WiFi is a more powerful radio and maybe more robust…I guess that will be next if the Honeywell doesn’t work well.[/quote]
You are correct about the issue of min set point on the RECOn TZ45, As far as the Wayne Dalton I don’t see what issues people are having. It is made by Radio Thermostat also. It is a very simple unit. The only item that is flawed is the wire compartment. The 2gig is a nice piece too. I wonder if your issues are Vera related
Well, I ended up buying a Honeywell after confirming the Trane cannot be set below 55F and the Honeywell will go to 40F. Meanwhile my 2Gig has been performing well for 6 weeks. I will likely install the Honeywell after Christmas as a 2nd T-Stat and see which unit works better over the winter (I have 2 zones).
Tried to install the Honeywell this week but it did not work. The 24V transformer / relay down by my furnace, which is REALLY old, apparently is only putting out 15V and the T-stat says it needs 24V and did not even light up. I’ll replace the transformer and try again. Meanwhile my 2Gig t-stat, which worked well for almost 2 months, suddenly decided to drop communication with the Vera again and refuses to be healed. Physically resetting it requires a 4 hour round trip drive and $50 worth of gas, I hope the Honeywell works better once I get it installed, but maybe the problem is the Vera.
[quote=“brunogiovs, post:11, topic:169560”]Hello All
Updates on the issue:
Since the last zwave network reset / vera upgrade / and set vera to use 2.78 insted 3.20 , the thermostat Honeywell TH8320ZW1007 didn’t had any “lost connection” episodes.
1 week so far.
thanks[/quote]
So I have had two of these up and running since last August. Some time in the last few days, the downstairs zone 'stat went into this “lost connection” state.
I went into the 'stat menus and was going to have it bail out of the network (and had dragged Vera next to it and put her in “exclude” mode, but when I got to the RF10 'stat menu item, I was unable to chnage the setting to “0” to exclude. I kept getting “action failed” from the Honeywell. Was getting ready to bite the bullet and do a reset on the 'stat, and wade through configuring it again, but looked at your posts again, and gave just removing it from the wall a try. Did that, out it back, and all was back to normal. “lost connection” message gone, Vera able to poll and show current status.
The batteries on this 'stat only appear to power the clock, so a quick R&R like this is basically a reboot. Based on 25 years of working with 'puters, hardware and state machines, I am 99% certain this is not a Vera issue. Honeywell has some bug in the state machine in their z-wave module that allows it to get wedged. I’m sure if they ran a fuzz-tester against it, they would find a fistful of corner cases they’re not handling well. Yours got wedged frequently, and you have dialed back the level of interaction with Vera to a minimum, and things got better. We only occasionally change the setpoint from one of the Vera interfaces–we’re not doing anything that is scene or event driven, so we got by for a long time. But the thing wedged, and when it did, Vera could not talk to the z-wave module, and neither could the thermostat. I can’t see how this can be a Vera bug, just a thermostat z-wave module bug that Vera (or any other z-wave controller) can provoke.
I have been having issues too and I have had intermatic and trane before, they worked perfectly. Honeywell doesn’t work at all. When I had fewer devices, it would fail maybe once every month, now that I have added more devices, it fails every day. My advice, stay away from Honeywell. what I mean by fail is the dreaded “Lost Communication” message. Still trying to get support from Vera to help but just re-opened that ticket just today. I will repost here if I have any new information.
I get the “lost communications” message infrequently. I have a Vera 3 and running 1.5.622 firmware. I’ve found that if I pull the thermostat out of the base and push it back into the base (basically, power cycling the thermostat) the “lost communications” message goes away. I then have to reset the clock which takes a minute or two, then all works well until the next failure. It would seem the button battery that holds the programming would also keep the clock settings, but it doesn’t on my two thermostats.
I have two of the early production models of this thermostat. Maybe later versions keep the time going, mine lose the time but keep the rest of the programming. If I’m home this is a pain, but OK. If I had this thermostat in a remote, unoccupied or rented timeshare, this would be totally unacceptable. It seems that whenever I use a remote connection to the thermostats to change the temperature or other settings the dreaded “lost communications” kicks in. If I read, but try not to control the thermostat is stays stable. So I do the programming changes on the thermostat directly, not using the micasaverde web site or one of the iPhone/iPad apps to control the thermostat, only to read the thermostat.
I don’t know if this will help you much. I’ve been running this thermostat with my Vera 2 for two years now and have never had a lost connection error. I’m currently running firmware 1.5.622. Since this is a vacation residence, I never use scenes for my heat or scheduling. I keep it set to Auto and set a heat value and a cool value. When we get ready to go out to our cabin, I’ll turn the heat up to a comfortable setting. Sounds like you are using your settings in a more robust manner. Good luck!
Thanks for the useful info guys. I have installed a Current Innovations CI300E. So unhappy/ disappointed frustrated, I was looking for options and considering the Honeywell. Now?. not so much.
As some of the other posters, I am away a fair bit, and being in Canada, require reliability.
FYI, basic problem with the CI-300E, once you connect the Z-wave, it will no longer run the internal program, you are dependant on scenes to make it work. I am still working on that, and leaning away from using a Z-wave interface for something so critical as the control of heating…
Mine worked great, perfectly for few months.
Today it showed the “communication lost” error, not responding and not allowing me to remove from network.
Fix was easy for me: removed from wall, took the battery out, waited 5 minutes.
Put it back on the wall, set the date/time, did stress test on vera and it all came back ok.
Put the battery back and now its fine.
I hope this won’t become a monthly ceremony but other than this incident it is simply great.
I especially love the wire saver - i don’t need batteries and can use my 4 wires with this device with no batteries.
That said - yes, their customer support suck big time. As soon as you even mention this model, because of the zwave, they refuse to provide any assistance over the phone.