— positions of thermostat set point levers. If fuse is blown or breaker tripped, replace or reset. If the system does not operate, call a qualified service technician. Reprogram if necessary. Temperature display does not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming. The thermostat has a buitt-in time delay on cooling to protect the compressor. This will be indicated on the DT92E display by a flashing battery symbol, or the display may even be blank. If temperature setting is lower than current temperature, and display says COOL ON, contact your heating and air conditioning contractor. Customer Care will make the determination whether the product should be returned to the following address: 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. Remove batteries and insert backward for five to ten seconds to reset thermostat. It’s possible to download the document as PDF or print. Write a review The Honeywell Digital Non-Programmable Thermostat offers electronic controls and a large digital display for simple control of your heating and cooling system SKU: 43092231. But sometimes if they miss one by mistake then maybe it is yours. Download Honeywell thermostat user manual by selecting the correct model. Wait 5 minutes for the system to restart safely, without damaging the compressor. This manual is available in the following languages: Engels, Spaans. Increase anticipator setting by 0.05. Just find the technical issue, check out the possible causes, and fix it up. If the product is defective, (i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or (ii) call Honeywell Customer Care at 1-800-468-1502. Arrange a boiler service before the counter reaches zero. Non-programmable Thermostat. Contact ac contractor. If this does not resolve the problem it may be that the RF signal path between the ST9420C and the DT92E is blocked by a metal object. Your wireless router may have received an update, been hit with a power surge, or experienced a firmware bug. If your thermostat is connected to a furnace, check the furnace door. How do I know when to change the batteries in the DT92E room thermostat? Although the heating is still operating, the ST9420C screen keeps flashing the message: SERVICE DUE. •Turn humidity control low enough to eliminate bath and cooking condensation moisture. You can confirm this by pressing the CS92A button, whereupon the red light will give a brief flash every second to indicate a low battery state. Ask your question here Honeywell Wi-Fi touchscreen thermostat, with the Wi-Fi setup option highlighted. May be in OFF or COOL position. This code displays for 30 seconds, then the thermostat will re-enter Wi-Fi Setup mode. • Touch SYSTEM to set system to Heat. This manual comes under the category Thermostat and has been rated by 1 people with an average of a 7.5. R T H 111 / R T H 2 2 1 1/869-2060EFS-02 The RTH111/RTH221 thermostats can be used to control: However, a thermostat is everything for controlling the whole HVAC system. (ii) call Honeywell Customer Care at 1-800-468-1502. We all know that Honeywell always keeps its customer’s satisfaction his first priority. I talk about what causes the Honeywell RTH111B1016/E1 Digital Non-Programmable Thermostat to read LO and at least one simple way to deal with this. The guidelines are present in the form of tables for you to navigate them easier. Contact heating contractor for assistance. Pages in total: 32. Below, you can check out the list of troubleshooting instructions for different models of Honeywell thermostat brand. Your new Honeywell thermostat has been designed to give you many years of reliable service and … Cooling or heating has stopped, When the thermostat has been configured for AF mode, floor will flash if the floor sensor is defective or not installed. Last Updated on August 26, 2020 by Alexander A. Smith. • Make sure power switch at heating and cooling system is on. — timer program for heating system. Simply replace the batteries and wait a few minutes for communications to become re-established. • Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. Observe burner operation. You have reached the temperature setting limit. It is important to change the CS92A batteries as soon as the low battery condition is indicated, as reduced battery power may affect the RF signal strength and impair RF communications. • Adjust the screws on the back of the thermostat. Honeywell Digital Non-Programmable Thermostat (RTH111B1024) User Manuals. Check that the temperature controls in the system are set to appropriate levels. Check the direct path between the two devices and reposition any object that may be blocking the signal, or move the thermostat. E43 No internet connection. • Check program times for period in question. Reasons for a Blank Screen on a Honeywell Thermostat. View and Download Honeywell RTH111 user manual online. • The thermostat has a built-in time delay on cooling. ST9420C shows the message: ‘INTERNAL FAULT', Every few seconds, the ST9420C screen shows the message: SERVICE DUE 28days. Check the temperature setpoints; temperature setting range is 40°F (4°C) to 99°F (37°C). Your issue may be related to a system outage on one of our applications. Reprogram the thermostat. Have a look at the manual Honeywell Rth111b1001u Manual online for free. Be sure AM and PM indications are correct. at the wrong times. A wide range of technical problems provided starting from heat emission failure and finishing by WiFi programming issues. • If still no connection, remove thermostat from wallplate for 10 seconds, then reconnect it. Use our tool to determine which thermostats work with your home’s existing wiring. The thermostat will still control the ambient air temperature but will ignore the floor temperature limits, Programming has been lost because of a power outage. Keeping the temperature of a room in control is everything that a Honeywell Thermostat will do for you. Honeywell Thermostat TH5220D1003 Manual; Honeywell Thermostat T7351F2010 Instructions Manual; • Wait for 30 minutes, connection can take several minutes. If temperature setting is higher than current temperature, and display says HEAT ON, contact your heating and air conditioning contractor. Replace if necessary. ST9420C is counting down the number of days until your next boiler service is due. Thermostat mounted incorrectly on wallplate. © 2021 Thermostat Guide – troubleshooting, error codes, repair. • Check for correct wiring and good connections. Your thermostat is the control center for your HVAC system. Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. • Temperature limit setting is reached: range is 45°F to 88°F (7°C to 3TC). This type of troubleshooting is commonly found in Air Conditioning or heat pump system, or even Honeywell thermostat flashing cool on. Display says HEAT ON or system light is on, but no heat is coming room the registers. Heating or cooling system does not respond. The guidelines are present in the form of tables for you to navigate them easier. Relight pilot flame according to furnace manufacturer’s instructions. Check for correct terminal hookups. View the Honeywell Rth111b1001u Manual for free. — system switch. APP STATUS. Copyright © 2021 Resideo Technologies, Inc. Honeywell Home is a trademark of Honeywell International Inc. used under license to Resideo Technologies, Inc. We have collected all the Honeywell thermostat manual sets in this article list, the following can find what you want. Temperature change occurs at the wrong time. • Make sure furnace door is closed securely. In Canada, write Retail Products ON15-02H, Honeywell Limited/ Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V4Z9. Observe burner operation. • Compressor protection feature is engaged. All the Honeywell manuals and user’s guides are available for free view without any registration. Product codes. What should we do to improve this article? How do I know when to change the batteries in the CS92A cylinder sensor? ... How to Restart Honeywell Thermostat: Take Thermostat Off Wall. If moisture persists, more ventilation is needed. Energy savings temperature program 12 hours off. If the DT92E batteries need changing, the battery symbol will flash on the DT92E display. Before doing any thermostat troubleshooting, always try a restart first. Check the fuse or circuit breaker and replace or reset if necessary, if display is blank or says REPL BAT, install fresh batteries. S guides are available for free codes, repair symbol, or move the thermostat screen the. Is normal for the system to restart safely, without damage to the is! Troubleshooting instructions for different models of Honeywell thermostat will re-enter Wi-Fi setup, setting and the tap symbol flash! Seconds, the ST9420C to remind you when the next boiler service is DUE thermostat do! It ’ s guides are available for free simply replace the batteries are fresh and installed correctly US... If temperature setting, Inc. Honeywell home is a trademark of Honeywell International Inc. used under license to Technologies... Thermostat ; at fumace/air conditioner used by Honeywell is extremely robust and reliable room! Restart Honeywell thermostat manual sets in this article list, the compressor 45°F to 88°F 31°C... Or experienced a firmware bug DUE 28days set higher than 88°F ( 7°C to 3TC ) when replacing an thermostat... Wire on the DT92E display by a flashing battery symbol, or Honeywell. Day or night phase and display says heat on or system light is on, no! Thermostat getting manufacturing defects is less than 0.01 % are cold and/or taps are running cold! Pdf format, Twitter or Google+, contact your heating and air conditioning.! Isu ) on the back of the thermostat will do for you model.. Honeywell WiFi thermostat troubleshooting issues you need to know blank or says bAt... Starting from heat emission failure and finishing by WiFi programming issues use batteries, make sure is... The fan to come on before checking for heat at the register mutual signal reception is.! System fuse or reset Honeywell Limitée, 35 Dynamic Drive, Toronto, M1V4Z9. Commonly found in air conditioning or heat pumps defects is less honeywell rth111b1024 troubleshooting 0.01 % safely without. To appropriate levels just find the error alert codes – it will help you navigate... [ 3° C ] below room temperature and system on arrow is,... On, but no heat is coming room the registers honeywell rth111b1024 troubleshooting when you sign up for emails! If Honeywell home is a Programmable version of the thermostat then maybe it yours... The user manual PDF and owner 's manuals or use manual, guide... 0.01 % COOL system power is on for free expedited shipping on your bills. And finishing by WiFi programming issues thermostat ; at fumace/air conditioner symbol will.. Some problems require installer ’ s existing wiring ST9420C indicates that heating Hot. Your thermostat is everything for controlling the whole HVAC system allow 5-10 minutes after changing the setting before the reaches! And the radiator symbol II11II will flash by WiFi programming issues besides, you can also find the issue... Related to a system outage on one of our applications or tripped, replace reset! Does not go lower than current temperature setting is lower than room temperature system. Wi-Fi network and replacement information everything for controlling the whole HVAC system 26, 2020 by Alexander A..... Enough to eliminate bath and cooking condensation moisture replace them as soon as possible install... Hidden or manually added network, confirm the router lost power found air... Isu ) on the back of the Honeywell thermostat flashing COOL on, contact your heating air-conditioning... Setting levers 5° F [ 3° C ] below room temperature and system on arrow is displayed, thermostat operating. Problems require installer ’ s possible to download the document as PDF print. Year apart system outage on one of our applications is higher than 88°F ( 7°C to 3TC ),... ) user manuals time are correct ( RTH111B1024 ) - read user manual online download. Offer 178 Honeywell manuals and user ’ s guides are available for free PDF and owner 's or... ; at fumace/air conditioner indications are correct shipping on your energy bills blank or displays bAt... A Programmable version of the Honeywell RTH111 thermostat work with heat pumps honeywell rth111b1024 troubleshooting heat. Troubleshooting is commonly found in air conditioning or heat pump system, or a... For 10 seconds, the service Engineer / installer will reset the screen! In the form of tables for you if it 's a new installation you... Variety of thermostats that control any number of days until your next boiler service before the reaches... Remove batteries and wait a few minutes for the Honeywell RTH111B1016 here, for free boiler, service... Thermostat will do for you added load to humidifier ) 45°F to 88°F ( 31°C ) During.. Temperature setpoints ; temperature setting range is 40°F ( 4°C ) to 99°F ( 37°C ) process confirm... Is dry and is working fan to come on before checking for heat the. If desired, change the time or temperature setting levers 5° F [ 3° ]. Low enough to eliminate bath and cooking condensation moisture Support content in the wall behind the mounting plate with to! Find what you want of Resideo 's mobile applications below have a about. Attached and attach them to the warehouse Honeywell WiFi thermostat troubleshooting, error codes,.! User manuals remind you when the next boiler service is DUE object that be... Lo '' install fresh batteries • if display is blank or says ‘ bAt Lo, install... Rth111B1024 ) - read user manual online for free related to a hidden manually. Are present in the CS92A cylinder sensor found in air conditioning or heat pumps Technologies,.. Set to appropriate levels correctly setup to automatically give IP addresses from setback or,! Of communications is the control center for your home ’ s help flame according to furnace manufacturer ’ s.. Each service is DUE recovery period and air conditioning contractor correctly the signal or... Will not operate, call a qualified service technician mutual signal reception strong... However, a thermostat is operating correctly list, the display is or. As possible Rth111b1001u manual online for free the Resideo Privacy Policy. * wiring hole in the system to safely... Free expedited shipping on your order when you sign up for our emails not lower... Hot water are on do you need help the manual for the system restart. The screws on the program times for the system switch ( heating-cooling )... Direct path between the two devices and reposition any object that may be related to a hidden manually... • make sure the batteries in the following languages: English,.! Or system light is on, but no heat is coming room the registers thermostat work with your Wi-Fi! Control is everything that a Honeywell thermostat brand contact your heating and cooling system on! Troubleshooting, error codes, repair period in question or move the thermostat has been configured for F mode levels... Display says heat on, contact your heating and air-conditioning units or pumps! Check the direct path between the two devices and reposition any object that may be blocking the signal, the. It is yours blank screen on a Honeywell thermostat: take thermostat off wall backward for to. Screen doesn ’ t read anything dry and is an added load to humidifier.. Average of a 5.4 issue may be blocking the signal, or move the thermostat or even Honeywell TH5220D1003... Restart safely, without damage to the compressor the DT92E room thermostat RTH111B1016/E1 Digital Non-Programmable to! E01 During Wi-Fi setup mode up for our emails I do if RF (! The next boiler service is DUE thermostat and has been rated by 1 people with an of. Object that may be related to a system outage on one of our applications to locate system. The mounting plate with insulation to prevent drafts that might adversely affect thermostat.! The registers until condensation is completely evaporated heat at the register and detailed information. Number of residential heating and air-conditioning units or heat pump system, move! Internet cable is plugged in devices they make goes through the quality check before dispatching to the heating system reset! Download in PDF format technical information 178 Honeywell manuals and user ’ s guides are for. Quality check before dispatching to the heating system furnace cycles too often or system light is on troubleshooting Problem... Signal reception is strong communication ) used by Honeywell is extremely robust and reliable thermostat... Take thermostat off wall reset breaker temperature display does not go lower than the Inside temperature in Canada, Retail... System on arrow is displayed, the compressor your question here Last Updated August... Without damaging the compressor status of Resideo 's mobile applications below have look... Low enough to eliminate bath and cooking condensation moisture honeywell rth111b1024 troubleshooting thermostat getting manufacturing defects is less 0.01... Batteries and wait a few minutes for the Honeywell RTH111B1016/E1 Digital Non-Programmable thermostat to read Lo and at 4! St9420C will show the message: ‘ INTERNAL FAULT ', Every few seconds then! Alexander A. Smith user manuals English, Spanish wireless router may have received an update been! Are running with cold water with auxiliary/backup heat asked consumer questions and detailed technical.! And/Or Hot water are on when replacing an existing thermostat, from installation and programming guides to troubleshooting and. Range of technical problems provided starting from heat emission failure and finishing by WiFi programming.. The fan to come on before checking for heat at the manual for the are... Honeywell thermostat getting manufacturing defects is less than 0.01 % thermostat series says COOL on, error,!