It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz

On 1/17/2010 11:25 AM, Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz
You didn't mention what the actual room temperature was at 3 AM when the furnace
was running. I suspect that either the temp was quite a bit below 68 deg. or
your heating system takes a very long time to substantially raise the temp in
your home. These thermostats have a factory set default to "adaptive" mode
which senses both the time of day and the difference between the actual room
temperature and the temperature that is set for the next programmed interval.
The goal is to have the room at the desired temperature at the time the next
programmed interval starts (not to begin warming or cooling at that time). Over
the course of about 5 days, the thermostat "learns" how much time is required to
get to the next set point and adjusts the start time accordingly.
Let it do it's thing and you will probably note that the start time gets later
and later until eventually your room is at 68 deg. at almost exactly 6:30AM.

My Honeywell also shows the temperature of the next programmed interval when the
heat or A/C kicks in to start getting the temp to the desired next set point.
It's not a malfunction.

P.S. On my thermostat, there is an adjustment screw on the back that lets you
over-ride the "adaptive" mode and have the thermostat work in the traditional
timed mode - which starts the heating or cooling cycle at the programmed time.

Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz
Hi,
What is the model? It has wake, leave, return, sleep; 4 settings.
Your case needs only 3 settings bypassing leave. Jot down program to do
on a piece of paper and do it. I use Visio Pro 8000 and it does anything
I want. Just a matter of (armchair)programming. Maybe I am biased as an
ex-Honeyweller.(retired in '96 when times were good after 30 odd years)

On Sun, 17 Jan 2010 11:53:13 -0500, Peter wrote:

Thanks for the info, Peter.

You didn't mention what the actual room temperature was at 3 AM when the furnace
was running.

The temp at 3 am was about 66 deg, only 2 deg below the temp setpoint
set to start at 6:30 am. My furnace is 24 yrs old, but it is more
efficient than that.

I suspect that either the temp was quite a bit below 68 deg. or
your heating system takes a very long time to substantially raise the temp in
your home. These thermostats have a factory set default to "adaptive" mode
which senses both the time of day and the difference between the actual room
temperature and the temperature that is set for the next programmed interval.
The goal is to have the room at the desired temperature at the time the next
programmed interval starts (not to begin warming or cooling at that time). Over
the course of about 5 days, the thermostat "learns" how much time is required to
get to the next set point and adjusts the start time accordingly.
Let it do it's thing and you will probably note that the start time gets later
and later until eventually your room is at 68 deg. at almost exactly 6:30AM.

My Honeywell also shows the temperature of the next programmed interval when the
heat or A/C kicks in to start getting the temp to the desired next set point.
It's not a malfunction.

P.S. On my thermostat, there is an adjustment screw on the back that lets you
over-ride the "adaptive" mode and have the thermostat work in the traditional
timed mode - which starts the heating or cooling cycle at the programmed time.

On Sun, 17 Jan 2010 09:54:12 -0700, Tony Hwang
wrote:

Hi,
What is the model?

It;s probalby 10 yrs old, CT3600

It has wake, leave, return, sleep; 4 settings.

Mine does not have these settings, only morning, daytime, evening,
night.

Your case needs only 3 settings bypassing leave. Jot down program to do
on a piece of paper and do it. I use Visio Pro 8000 and it does anything
I want. Just a matter of (armchair)programming. Maybe I am biased as an
ex-Honeyweller.(retired in '96 when times were good after 30 odd years)

Thanks for the input,
-Zz

I have one and let me make a few suggestions. If you haven't done so
already carefully read the directions again. Secondly, are you
hitting "run program." I had mine on HOLD instead of the "run
program" button activated and I had a similar problem. Did you set
all seven days? Is the time and day correct? Scan through your days
and times (all 4 of them) to make sure that they are where you want
them then push "run program." Did you install it or have it
installed? Have you checked the Honeywell sight? good source for
info.

phil

On Jan 17, 10:25*am, Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. *Set the
temp to 40 degrees (essentially turning off the furnace). *"Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". *I turn it off and check the settings, it
says "40 deg". *Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz

Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

You did tell the thermostat what the current time was, right?

On Jan 17, 10:25*am, Zz Yzx wrote:
It seems to have a mind of it's own.

snip

I set "Morning" to start at 12:00 am

Isn't high noon 12:00 AM? And midnight 12:00PM? Maybe you should get a
military thermostat with 24 hour timing to avoid confusion. That's
what eBay did.

Joe

"Eric in North TX" wrote in message
...
On Jan 17, 10:25 am, Zz Yzx wrote:

As others have said, that is likely the adaptive mode getting a run at
the next setting. I've learned to live with it, and pushed my times a
head slightly so it will still be pushing up when I want it to be
there.


The adaptive mode does not work well in areas with wide temperature swings.

By the time the system adapts the weather has changed again.

While I love the setback feature I have disabled the adaptive mode on both
of our units.

I would have to look it up in the manual but it was as simple as turning a
small screw on the back of the unit.

But just in case you missed the other post 12AM is midnight and 12PM is
high noon.

Colbyt

Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz

I've had very good luck with Honeywell. That said, they do break after a
time and they do wear out batteries. Low batteries do cause flaky things to
happen. Try a new one and see what happens.

Zz Yzx wrote:
It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-

Hi,
Come to think of it, 40 and 68 degs.
Your temp. never goes down to 40 and furnace has to run to
bring up the temp back to 68. I don't think Adaptive mode can
handle your particular setting. To pove a point set it to 50 and 68
and see what happens. My Vision Pro works OK with temp swt at 17 and
21 Deg. C. After reacing 17 deg. in the night, it needs about an hour
to bring it back to 21. So furnace starts running 1 hour ahead of
set time. I bet you setting is near or at outside design specs.

On Sun, 17 Jan 2010 08:25:34 -0800, Zz Yzx
wrote:

It seems to have a mind of it's own.

I set "Morning" to start at 12:00 am and run untill 6:30 am. Set the
temp to 40 degrees (essentially turning off the furnace). "Daytime"
(6:30 am start), "evening" (7:00 pm start) are set at 68 deg.
"Nightime" starts at 11:00 pm, set to 40 deg.

BUT, I wake up at 3:00 am to find the furnace running, and check the
settings, it says "68 deg". I turn it off and check the settings, it
says "40 deg". Turn it back on, the settings says "68 deg".

What am I missing?

Thanks a heap, in advance
-Zz

Thanks for the responses.

I did in fact have it set up and running correctly (i.e. hit the "Run
Program" button).

It must have to do with the "Smart" mode, and ramping up to the target
temp for the next setting. BUT, it comes on 2-3 hours ahead, then
turns off for an hour ort so, then on, then off....

I'd expect it to come on maybe 30-45 mins early, and turn off when it
gets to target.

I'll fiddle with another couple days and see what gives.

-Zz

Try this-- do NOT set it at midnight, try 12:10 AM or 11:50 PM.

I had mine (also a Honeywell) set to set back at midnight... one night
I woke up in the middle of the night, happened to be walking past the
thermostat, and it was daytime temperature.

I set it back to 11:50 and never had that problem again.

I think that there's a bug in the software that confuses it at exactly
midnight because that's a different day.

And please-- let us know what happens.

-Shaun Eli
www.BrainChampagne.com

(copyright 2010 by Shaun Eli. All rights reserved)

On Jan 18, 11:31*pm, Shaun Eli
wrote:
Try this-- do NOT set it at midnight, try 12:10 AM or 11:50 PM.

That's a good idea to try. Also, the way he's using the time periods
is not like I have ever used them. He has the day start at 12AM.
I've always had night set from like 11:30pm to 6am, morning 6am to
8am, day 8am-5pm, evening 5pm-11:30pm. I don't see why it really
should matter, but he could also try using the more conventional
assignment of the periods.

It's hard to imagine that is adaptive recovery causing it because he
says it's kicking on 3 hours ahead of time with only a 2deg temp delta
to achieve. If he said it was an hour, then I'd suspect that. If
they behaved that way, even when learning, they'd have a lot of
disatisfied customers. Other obvious questions:

Is the battery new? Try taking the battery out, doing a complete
reset? Did it used to work properly?







I had mine (also a Honeywell) set to set back at midnight... one night
I woke up in the middle of the night, happened to be walking past the
thermostat, and it was daytime temperature.

I set it back to 11:50 and never had that problem again.

I think that there's a bug in the software that confuses it at exactly
midnight because that's a different day.

And please-- let us know what happens.

-Shaun Eliwww.BrainChampagne.com

(copyright 2010 by Shaun Eli. *All rights reserved)