All rights reserved. It is similar in nature to the Swing setting, however, it only effects the operation of the second (auxiliary) heating stage of heat pumps. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Your thermostat may lose calibration after a while, a situation which affects thermostat temperature. Up to three degrees warmer than the set temperature. 1 Turn power OFF. Plus, an accurate display reading helps prevent calling for more heat or cold than your HVAC can deliver. Press the button to save the change (or press to cancel the change) Thermostat User Guide Read and save these instructions. Also note that our heat has come on since we made this adjustment. Displays Ambient (Measured) Temperature At All Times. ... 32 Temp. Factors that affect the room thermostat's behavior include is location in the building, for some models how level the thermostat was installed, the thermostat's heat anticipator adjustment, even dust and debris in or on the thermostat. We then scroll down using the arrow buttons, circled in green above, to bring the  Advanced Preferences  item into view, as pictured next. Then we show how to set it on the Honeywell RTH9580WF smart thermostat. I bought this thermostat to replace a Honeywell programmable unit that's been in use since I built the house in 2001, it wouldn't turn off the heater when the set temp was reached for some reason. Enjoy! Loss of calibration can result from a number of things, such as accidental bumping and dirt. In fact, the room temp does not change when the heater starts up again. Just consider our rankings above as a suggestion. What is Top 10 Honeywell Temperature Offset Thermostat to buy? The OFFSET setting is shown as number of degrees (default = 4F). Because the thermostat now senses that the room is one degree cooler than before. Nice, simple thermostat. Adjust Indoor Temperature Offset Use the UP and DOWN arrow buttons to set the indoor temp offset. Setting Temperature Differential on Honeywell RTH9580WF Thermostat Temperature differential is the difference between the turn-on and turn-off temperatures on a thermostat, whether heating or cooling. This happens on 8-10 min intervals in cold weather. The  Preferences  screen then appears, as shown next. • Touch to deactivate or activate the Heating schedule. But your heat won’t shut off until the thermostat reads 79 degrees! Thermostat May Need Calibrated Honeywell RTH9580WF thermostat, displaying its -Indoor Display Offsets- screen with a minus 1 degree temperature offset highlighted. At this temp, your furnace might run way excessively. Operating Temperature Range (F) 32 F to 120 F Operating Temperature Range (C) 0 C to 48.9 C Power Method Battery or Hardwired Color Arctic White Programmability 7 Day Program or Non-Programmable Terminal Designations R, RC, C, W-O/B, W2-AUX/E, Y, Y2, G, A-L/A, K, S1 S1 Display Size 10 sq in. If the thermostat is located in a particularly hot/cold location and cannot be moved because of wiring restrictions then the measured/displayed temperature can be adjusted by +/- 1,5°C. In this case, your set temperature is 76. I did a test. Reviewed: 04/03/2019 by Don. But our place is still the same actual temperature. The "Temperature Offset" can be modified from the "Installer Set-Up Mode", below are instructions on how to achieve this. Not good. But the HVAC system keeps running until your indoor temp falls to 73 degrees. Honeywell RTH9580WF thermostat, showing its -Indoor Display Offsets- screen, with the -Indoor Temperature Offset- buttons highlighted. This video is about How to change some of the advanced settings in the function menu, which I personally struggled with at first but finally figured out. See our   How to Calibrate Honeywell Thermostat Temperature RTH9580WF   post for more details on that aspect of how to use this setting. Note: If you have a digital thermostat that has a blank display, skip this step. -24% Flexible programming: 7 – … The swing setting, when the t-stat has it, often ranges between one and three degrees. With a -2 degree offset setting, this makes the t-stat read, and behave, as though the temperature was two degrees cooler. It did before we changed the temp offset Home comfort and save on energy costs with -2... By the surrounding temperature or by self-heating the thermistor temperature may be by! Use it to its minimum value ( -3 degrees ), this makes the t-stat read, and,! 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