My observation - not suitable for Empire heaters that need a millivolt thermostat. • Temperature limit setting is reached: range is 45°F to 88°F (7°C to 3TC). Contact Support at 1-855-733-5465 to find a pro-installer in your area. @dgpapke @Honeywell_Home well, Jerry @Honeywell_Home seems I cannot get setup on Honeywell to register my T5, because it requires set up, and I cannot set it up, because the Honeywell Home iOS app is not working and I changed my network with my new modem and router, so the thermostat is off line too NEW THERMOSTAT, NEW INSTALLATION – This is for people who recently bought a new thermostat and are installing it for the first time. Replace batteries correctly: display should come on. Those primitive models relied on a bi-metal spring to sense temperature. I changed t … read more . Honeywell Home CT30A1005 Standard Manual Economy Thermostat I see in the Q&A's the manufacturer replied it is suitable for Empire heaters, while a seller said no it isn't. A Honeywell thermostat can help keep your home at a comfortable temperature. There are a few reasons a thermostat may not be maintaining its heat setting which can be fixed fairly easily. WARM/HOT – This means your reversing valve may not be configured or wired properly. Most Honeywell thermostats contain a heat anticipator. Thermostat Not Level May Cause Honeywell Thermostat Not Turning On Heat Problem. Honeywell Return Goods,Dock 4 MN10-3860,1885 Douglas Dr.N.,Golden Valley, MN 55422,or whether a replacement product can be sent to you. CT3200. The thermostat is simply a switch. If your thermostat's Wi-Fi isn't working, the solution depends on what you're experiencing. I had no power to my Honeywell VisionPro IAQ thermostat. Manufacturers would affix a mercury switch to the outside end of that coiled spring. turns the system on or off based on temperature in the home. Ok, let's start with basics. Remove batteries and insert backward for five to ten seconds to reset thermostat. . • Set System switch to Off. But if your thermostat is not holding temperature then your home will feel cooler than it should. Saved me a bunch of money. Poor leveling on older thermostats can affect how well they respond to room temperature changes. I have not run the air or heat for at least 3 months, but I went to turn the heat on, and noticed the "bat lo" indicator was on the screen. The fix was way easier than I thought. This warranty does not cover removal or reinstallation costs.This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused Stats do fail, but not as often as people would think. I expect that seller speaks from having had thermostats returned to him as unusable. I have a Honeywell Thermostat, model no. Temperature display does not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming. 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