After install, the set temp. is fine, but the room temp. shows 99. Why? (Digital/non-programable thermostat)
1528826
I had 2 units that exhibited the same symptom - 99 in the display. I called Honeywell and they really didn't have a solution other than to return them, which I did and bought another brand. My only thought was that Honeywell had a bad batch of the thermostats and Amazon got more than there fair share. Only Honeywell will know about the bad batch if they even look at ones that are returned. My guess is they won't unless there are thousands of units with the same failure.
1528827
Sorry - I have not as yet installed the thermostat. Honeywell product support should be able to answer your question.
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.
1789706
Sorry, mine is just a replacement furnace thermostat. I know nothing about it.
2048380
To ensure the temperatures are nearly the same, make sure you place all comparing thermostats in the same exact location. Even testing across the room can make a difference, possibly what you are experiencing.
1023599
Hello! That was the same reason I replaced mine- it worked fine, but the buttons were wearing out. I looked in the service manual and is says that it needs to be programmed, but I installed it and it seems to work fine without any programming. As a side benefit, my vehicle already shows the external temp in the DIC above the gauges, so it does not display it on the HVAC module screen from the factory. After replacing the factory module with the one I bought here, the external temp now shows on the HVAC screen (and still in the DIC). I kinda like it! I suspect that if I were to program the module, it would turn off the feature. Anyways- in my case it worked fine out of the box! Hello! That was the same reason I replaced mine- it worked fine, but the buttons were wearing out. I looked in the service manual and is says that it needs to be programmed, but I installed it and it seems to work fine without any programming. As a side benefit, my vehicle already shows the external temp in the DIC above the gauges, so it does not display it on the HVAC module screen from the factory. After replacing the factory module with the one I bought here, the external temp now shows on the HVAC screen (and still in the DIC). I kinda like it! I suspect that if I were to program the... » Read More Hello! That was the same reason I replaced mine- it worked fine, but the buttons were wearing out. I looked in the service manual and is says that it needs to be programmed, but I installed it and it seems to work fine without any programming. As a side benefit, my vehicle already shows the external temp in the DIC above the gauges, so it does not display it on the HVAC module screen from the factory. After replacing the factory module with the one I bought here, the external temp now shows on the HVAC screen (and still in the DIC). I kinda like it! I suspect that if I were to program the module, it would turn off the feature. Anyways- in my case it worked fine out of the box! « Show Less
2112389
Humm.. that is weird. My unit included a full instructions manual. Contact the seller. They will ask you if your unit is doble or single a/c system. That may make the difference.
457146
Try this: Honeywell CT50K1028/E Low Temperature / Garage Non-Programmable Thermostatby Honeywell
1233698
This is not a programmable thermostat. Single temp setting, adjusted manually. Just like in the old days (only digital).
1523939
That's how thermostats work. I set the temp a bit lower. If the tstat is near there cold air outlet you will also get a false reading so you have to set the temp lower to keep the rest of the house at the desired temp.
2017048
I don't know what the specific temperature setting is for the thermostat is, but I am sure that it is significantly higher than 40. I sometime put it on the low setting just to keep myself comfortable. If i where to guess I would say the lowest is somewhere around 55 - 60 range, but I really don't know for sure.
1480631
Just make sure you set the new one to the correct time zone. Its buried somewhere in the Honeywell software options. Mine reset to the incorrect time as well (after I manually reset the time.) I'm in AZ and the daylight savings option was throwing everything off.
2211414
I believe the units that do not have a "T" in the model name do not have a thermostat. I woud buy a seperate thermostat next time...They heat up well enough, I just have to set them at 80-85 degrees to get the room temperature to 68-70.
554397
it's digital and you just set the temperature by pressing the Up or Down button located on the front of each door. Unit has nice blue lighting also. This is a thermoelectric cooler so it doesn't have extreme temperature ranges I think it can be set between 46 to 66 degrees but it also depends on how hot it is where the unit is located. Works great for my needs as I like my reds more around room temperature and whites around 55 and the temperatures on mine are rock solid and the unit is fairly quiet, in fact I don't notice when it even turns on.
1802603
The thermostat is not set by temperatures. Levels 1-5 settings...setting 1 is pretty low...setting 5 is really high.
1738422
I had this same problem, returned them as defective. I've never had a thermostat on any type of heating or cooling system perform this way.
2099086
If you have an air vent close to the sensor, it will detect the change in temperature from the heater/AC airflow. One of my bathrooms has that issue. Try redirecting the airflow higher so it's not registered by the sensor.
2117179
No Idea, I do know this, I had to have help "professional" to install this thermostat, although after I was shown my mistake it was Obvious. Really happy with performance and money saved in energy costs.