Written I really think we need more detail, but there are a couple of things that can be tried if it is not accepting re-programming and is "held" at a particular temperature.  These thermostats operate much like computers, if garbage goes in, garbage comes out.  So we want to remove the "garbage" instruction it is stuck on and re-instate some semblance of correct behavior.You need to download the instructions if you have not done so already. Make certain the thermostat was set for the type of heating unit you have on the original install.  Make certain the thermostat wires are correctly attached and are secure, and that none are touching more than one terminal.Remove the unit from the wall following the instructions.Either verify your batteries are good, or install new tested ones.Proceed to program using the instructions. Everything should now work as designed and programmed.Update:  Look at what Alan Webb has referenced.  Written I was going to say, "replace it" because I don't know that much about this thermostat.

This might be useful: How to Lock the Honeywell RTH7500 Thermostat | eHow.Written Written I bought a new heat pump about 4 years ago and installed a Venstar Thermostat. It is the best one that I ever had, and I paid about $170 for it. You can get it for less if you shop around. The reason that I liked it is that the room temperature has about 1" high digits that you can see from several feet away. I had my A/C company install it after I got it. You can also get a new Honeywell thermostat like your model for about $80. I honestly don't think that thermostats that are made in the the recent past are even repairable. If you have a defective IC, it can be difficult to repair. If your current one is out of warranty (1 year on this model), then you are likely looking at a new one. You can get some digital thermostats for $20 to $30, but they may not be programmable. If you can spring for a new one, that is likely the way to go. You can even get wi-fi ones that work with a smart phone. The Venstar is in color, so it looks pretty good.

Written Written Actually, The recovery mode is to adapt for the humans. This technology is brought mainly for the comfort of humans and contributes to the power saving also. This thermostat observes the activity and prepares the algorithms accordingly. When you leave the house it starts to compare with the outside temperature and maintains a temperature 5-15 degrees above the comfortable zone(In cooling type ). When you enter the house from the hot scorching sun you would definitely feel colder than the outside temperature and you won't sense that the temperature is not in the set point. This is employed for one main reason called the 'Thermal shock '  which is caused when the temperature of the environment changes drastically within a short period of time within which the human skin wont be able to adapt itself. So to minimize the uncomfortable situation when you enter the house, this thermostat maintains the temperature like that! This is called the recovery mode. Then it senses the presence and adjusts the system to provide the comfortable temperature in a while.

Written It means the thermostat is controlling the HVAC system to return the temperature in the space it's conditioning to the occupied period setpoint by the start of the occupied time.Example: your house cools down to 55 degrees at night.  You've programmed the thermostat to maintain 68 degrees in the house from 7 a.m. to 10 p.m.  The thermostat will turn the heating system on early enough to heat the house up to 68 degrees by 7 a.m., which could take over an hour, and during that time it will say "recovery" on the thermostat display.fujitsu air conditioning units costWritten Recovery mode on a thermostat is used to bring a space back to a normal occupied setpoint after having been set back usually by a schedule.ac / dc power supplies encapsulated modulesLet’s say you are gone all day so your schedule sets the temp to 80 degrees while you are gone. hvac unit icing up

But it is scheduled to reset the temp to 76 at 5:00 PM when you normally get home. Rather than just waiting until 5:00 to reset the temperature setpoint, it looks at the current room temperature and predicts how much sooner it should reset the temperature setpoint to achieve 76 degrees by 5:oo PM when you walk through the door.My Honeywell Thermostat Won't Go Into Cool Honeywell manufactures manual, digital and touchscreen digital thermostat models for residential use. They all have different functions and features. A standard feature for all Honeywell thermostat models is the control for the cooling system in your home. Incorrect thermostat settings and enabled safety features will often prevent your thermostat from entering the cool mode. By learning how to properly set the thermostat and manage its safety features, you can control the cooling system with your Honeywell thermostat. Push the heating and cooling switch to "Cool" on a manual Honeywell thermostat. Press the button underneath "System" on digital thermostats until "Cool" appears on the display.

If you have a digital touchscreen thermostat, tap "System," "Cool" and "Done." Your cooling system will not turn on if the Honeywell thermostat is not set to "Cool." Turn the dial on a manual thermostat to the left so the set temperature is less than the current temperature reading. For digital thermostats and digital touchscreen thermostats, press the down arrow button to lower the temperature setting. Press the "Hold" button on digital thermostats and tap "Switch to Permanent Hold" on digital touchscreen thermostats to maintain your input temperature setting. The cooling system will not turn on unless the temperature setting is lower than the temperature reading inside your home. Open your circuit breaker box and locate the circuit breaker for your cooling system. Reset the circuit breaker if it was tripped. Look at the digital or digital touchscreen thermostat for "Wait" and a blinking "Cool On." The thermostat has enabled a safety feature in this instance to protect your cooling equipment.

The cooling system should turn on after approximately five minutes. If you are still unable to turn on your cooling system, the problem is likely not with the thermostat. Contact a service technician to check your cooling system and heating systems for any problems. "Honeywell T87N Easy-To-See Owner's Manual"; "Honeywell FocusPro TH6000 Series Programmable Thermostat Operating Manual"; "Honeywell Prestige THX9000 Touch-Screen Thermostat Operating Manual"; Honeywell: Frequently Asked Questions Honeywell T8000c thermostats ... Pay particular attention to this if the little flame sign or snowflake sign is flashing. Honeywell Th6000 Thermostat Problems. Wait five minutes for your system to restart if "Cool on" or "Heat on" is flashing. How to Troubleshoot RTH230B Honeywell Thermostats. My Honeywell Thermostat Won't Go Into Cool. Honeywell manufactures manual, ... The Honeywell RTH7600D thermostat lets you adjust your home heating and cooling system from a discrete wall-mounted panel.

The device features a...Your Honeywell thermostat tells the heater or air conditioner when to turn on and ... My Honeywell Thermostat Won't... How Do I Install a Cool Heat Honeywell Thermostat? A thermostat is your primary means of controlling the heating and cooling system... My Honeywell Thermostat Won't Go Into Cool. Honeywell manufactures manual, digital and touchscreen digital thermostat models for residential use. Honeywell Thermostat RTH110B Instructions. Honeywell's battery-powered RTH110B thermostat has a thermometer that detects the ... or "Cool" to activate the cooling ... My Honeywell Thermostat Fan Won't Go On. ... the fan will not start even if it is too hot if the thermostat... Push the "System" button on the thermostat, and set the system to "Cool." ... The message will stop flashing and the system... How to Reprogram Honeywell Thermostats; 1. Turn your thermostat to "Cool" and "On" during the warmer months after... How to Reset a Honeywell Programmable Thermostat