If your Honeywell thermostat isn't working properly, it's worth checking behind the cover and giving it a clean to see if that helps. Well, you’ve come to the right place! Last Updated on August 26, 2020 by Alexander A. Smith. Steps 1) From the locked home screen, press the center button. 1. Below, you can check out the list of troubleshooting instructions for different models of Honeywell thermostat brand. Keeping the temperature of a room in control is everything that a Honeywell Thermostat will do for you. Nowadays thermostats have become so smart that it can automatically detect your arrival and when you leave your home. Honeywell Thermostat Troubleshooting. So, what you have to do is shutting the door of the furnace correctly to get the power to the thermostat back. For instance, there is 9 second delay after pushing the button to turning the fan on before the fan actually turns on. The default passcode when the Honeywell T4 Pro is partially or fully locked is 1234. If your thermostat looks totally fine, the problem is likely with the sensor. Database contains 1 Honeywell T4 Pro Manuals (available for free online viewing or downloading in PDF): Installation instructions manual . Menu Home; About; Blog; Contact; Posted on February 6, 2021 by The guidelines are present in the form of tables for you to navigate them easier. Just find the technical issue, check out the possible causes, and fix … The word "program" never comes up allowing me to set the 4 times for each day. Display is blank • Check circuit breaker and reset if necessary. Dirt or debris within the thermostat can also cause problems. Note: Don't remove any wires from your thermostat at this time. T4 Pro Programmable Thermostat User Guide Package Includes: • T4 Pro Thermostat • UWP™ Mounting System • Honeywell Standard Installation Adapter (J-box adapter) • Honeywell Decorative Cover Plate – Small; size 4-49/64 in x 4-49/64 in x 11/32 in (121 mm x 121 mm x 9 mm) • Screws and anchors • 2 AA Batteries To help, we’ve put together a step-by-step video explaining the process of how you can unlock your Honeywell T4 Pro Thermostat! APCO Intellicomm. On most thermostats, you can take off the thermostat by grasping and gently pulling. Verify that the wiring was matched correctly from the old thermostat to the new thermostat. Honeywell introduces his smart thermostat ProSeries category with so many features that help us all to maintain the home temperature and save energy. Remove your existing thermostat from the wall plate . Recovery Mode Explain in Honeywell Thermostat. However, a thermostat is everything for controlling the whole HVAC system. The common honeywell thermostat problems is caused by the door on the furnace which not fully shut. Then, you can reset the thermostat and use it just like before. Menu Home; How It Works. 18. I have a Honeywell T4 Pro programmable thermostat.I am having trouble programming it. If there are not separate wires to R and Rc, these terminals must be connected. After hitting menu i go thru the several steps of setting time, date etc. 2) Enter the passcode. Honeywell TH4110U2005/U T4 Pro Programmable Thermostat works fine. If your sensor is broken, your Honeywell thermostat could be reading the wrong temperature in the room. There can be quite a delay when changing settings before the new setting takes effect. Some thermostats may have screws, buttons, or clasps. I do not use this as a programmable thermostat. On some thermostats this connection is made by a jumper wire connection and on other models this connection is made by a slider switch that has 1-wire and 2-wire settings. Supported by IBM Watson Analytics. Guidecards; Technical; Reports; Pricing If you are well aware of the HVAC system and you are dealing with the Honeywell Thermostat, you might have suffered some unwanted situations..