Some Pro1 thermostats have a built in minimum run time feature that will make sure your system always runs for at least 5 minutes every time your system turn on. If the thermostat has good batteries, but has a blank display or does not respond to key presses, the thermostat should be reset by removing the batteries for 2 minutes . How to turn light off on Honeywell T6 thermostat. You set it up to adjust the temperature when you are away or asleep-times when you don't necessarily You can heat or cool your home to exactly the temperature you want based on your schedule and preference. When this feature is turned “On,” the backlight will remain on. Turn off the power on the air conditioning and furnace units associated with your thermostat. Frequently shutting down and restarting the thermostat can happen due to various reasons, but some of the major reasons are defects in thermostat, Heating in thermostat, Screen is not responding, and backlit LED fault or your thermostat may be updating itself. You should see a switch for the blower, … Follow these steps to turn off the backlight feature: Menu > Settings > Display/Audio > Display Brightness > Standby set to ‘0’ > Accept A programmable thermostat can save you up to 33-Percent off your energy bill, if used as directed. Backlight buttons at the same time and hold until the display goes blank and resets. If you do not see this feature, you do not have a “C” wire installed and powering your thermostat. 1 Turn the power off to the heating system. So, in order to prevent the air conditioner or furnace from kicking on unnecessarily, you should turn off the programmable thermostat. In case you want a dimmer screen or completely turn off your screen light simply adjust the backlight settings. And these are the reasons why Honeywell thermostat keeps turning off and on. Thermostatic Controls - Trane XL624 Backlight won't turn off - I have installed an XL624 thermostat on my 4TWX/4TEE system. Your thermostat may have a pre-set bright backlight that affects your eyes. When your thermostat says one temperature and you know the room is another, it may be dirty, tilted on the wall, or located where it can’t get a proper reading. Everything seems to work except I cannot get the backlight … 4) Unit runs both heat and cool at the same time – the heat pump setting is wrong – go to setup step 3 and turn HP to OFF. Thermostat Does Not Control Temperature. A simple, easy to use 5-2 day programmable thermostat. hi i have just installed the honeywell rth8580wf thermostat and have noticed the green backlit screen never turns off. Go to your thermostat … it may not require a heat pump thermostat, so step 3 should be turned OFF. Step 2 Identify the different controls. When set to “Off” the backlight will only briefly illuminate when the backlight button is pressed. The Honeywell 5-1-1 Day Programmable Thermostat The Honeywell 5-1-1 Day Programmable Thermostat with Backlight has a simple interface and offers separate weekday and weekend programming with up to 4 periods per day. 2 Remove the thermostat’s cover. i have read from a review on amazon as well as another article on techive.com that there is a way to have it only come on when you touch the screen and stay on for 8 seconds but i cant find this in any honeywell documentation or settings or menu on the screen it self. You can do this by going to your breaker box and flipping off the respective switches. If your 4iE thermostat is installed in your bedroom, the backlight from the unit may prevent you from falling asleep. 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