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Question posted by alagrande on December 1st, 2019

T8112c1007 Is Not Working How Do I Replace It.

My honeywell t8112c1007 is not working how do I replace it. Not working how do I replace it and what model do I use as a replacement.

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Answer #1: Posted by Odin on December 1st, 2019 2:08 PM

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Odin

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TH4110U2005 is the direct replacement for T8112C1007, and you can get it at https://www.supplyhouse.com/Honeywell-TH4110U2005-T4-Pro-Programmable-Thermostat-1H-1C-Heat-Pump-1H-1C-Conventional. Installation instructions are included, but if anything's not clear you can ask Honeywell [use the contact information at https://www.contacthelp.com/honeywell/customer-service] or possibly the seller.

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Related Honeywell T8112C Manual Pages

Owner's Manual - Page 1

Owner's Manual - Page 2

Table of Contents Programming Your Thermostat 3 Program Schedule 5 Set Current Time/Day 6 Heating Program 6 Cooling Program 7 Operating Your Thermostat 7 Using Programming Features 7 Setting Fan Switch 8 Setting System Switch 9 Maintaining Your Thermostat 9 Installing Batteries 9 Troubleshooting Guide 12 Limited One-Year Warranty 17 2 69-0862-4

Owner's Manual - Page 3

... on the display when you are installed, your thermostat can set for your WAKE period, include extra lead time, depending on installing or replacing the batteries, refer to program your time and ... before it is installed or after it is mounted on the wall. Programming Your Thermostat When batteries are away at work or school. (This will be a higher temperature during heating season, and a...

Owner's Manual - Page 4

... programs for each. For example, a house that is the time period you decide not to program the thermostat, it . ature and your furnace response time, to give the furnace a head start to heat the ...20°C) and cooling at the last step. If you arrive home. When pressing the keys, use the ball of sharp fingernails or pencil points can set one schedule for weekdays and another for weekends ...

Owner's Manual - Page 6

... batteries, set to Heat, press and release the Set Schedule key once. This guide can be used for LEAVE, RETURN, and SLEEP. 6 69-0862-4 See Maintaining Your Thermostat section. WAKE, Mon-Fri, and SET appear on the thermostat left side) using a coin at 78°F (26°C), 24 hours a day. Press Run Program key.

Owner's Manual - Page 7

... Off Heat HOLD TEMP KEY USE TO SET TIME LATER USE TO SET COOLER TEMPERATURE M8473 Cooling Program WIth System switch at the next scheduled program change; Operating Your Thermostat Using Programming Features Temporarily Change temperature ... adjust the Fan and System switches, as for Sat-Sun. Use Time keys to program WAKE time and Temp keys to cancel sooner, press Run Program key. 7 69-...

Owner's Manual - Page 8

...switching positions are: Auto: Normal setting for more efficient electronic air cleaning. 8 69-0862-4 If using Temporary Change or Hold features, pressing this key cancels your change. On: Fan runs continuously. A... return to the normal program or the starting program-Press Run Program key once. Use for improved air circulation during special occasions or for most homes. Press Run Program...

Owner's Manual - Page 9

...causing damage to remove the battery door. 4. Maintaining Your Thermostat Installing Batteries IMPORTANT Batteries must be installed for programming and operation of the thermostat and heating/cooling system. AM TU LEAVE Fan Auto On ... conditioning systems are oriented correctly. 9 69-0862-4 Heat: Thermostat controls heating system. Use a coin to the thermostat or wall surface. 2.

Owner's Manual - Page 10

INSTALL TWO AA ALKALINE BATTERIES AS SHOWN AM TU LEAVE M5781 5. Replace the battery door. As batteries are completely dead, bAtLo indicator disappears, leaving the display completely blank and the ...After batteries are running low, bATLo indicator flashes for one to two months before batteries run out completely. Replace batteries as soon as possible after indicator starts flashing.

Owner's Manual - Page 11

If the display is blank, the batteries are installed within 20 to 30 seconds of removing the old ones, the thermostat does not have to be reprogrammed. See Programming Your Thermostat section for instructions. 11 69-0862-4 If the new batteries are dead or incorrectly installed and the thermostat has to be reprogrammed. To remove batteries, press down on the left ends.

Owner's Manual - Page 12

...;F (31°C) during programming. Display does not come on the clips. Correctly replace batteries. Temperature display does not go • The temperature setting limit is 45 to 88°F (7 to reset thermostat. Reprogram, if necessary. 12 69-0862-4 Do not use anything abrasive on . • Make sure batteries are fresh and installed correctly...

Owner's Manual - Page 13

...thermostat is set to Cool. Allow a minimum of five minutes for time-guard protection to Heat. If... Allow a minimum of five minutes for time-guard protection to expire. • Check the system fuse or circuit breaker and replace...contact your local dealer. • Check that System switch on thermostat is blank or displays bAtLo, install fresh batteries. 13 69-0862-4 Cooling does not ...

Owner's Manual - Page 14

If air conditioner does not come on (Cont) Then... • The thermostat has a built-in time delay on ). • If temperature setting is lower than current temperature, and System On indicator is installed. 14 69-0862-4 If ...

Owner's Manual - Page 15

... the wall behind the wallplate was plugged with insulation to prevent drafts that could adversely affect thermostat operation. • Be aware that it is coming from setback or setup, setting and ...display temperature can differ for up and the fan to come on thermostat display. Then... • Press Run Program key to within +/- 1°. System On indicator is...

Owner's Manual - Page 17

...M1V 4Z9 17 69-0862-4 Limited One-Year Warranty Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year... Douglas Drive, Golden Valley, MN 55422. If the product is defective or malfunctions, Honeywell shall repair or replace it , postage prepaid, to the dealer or contractor where you purchased it, or ...

Owner's Manual - Page 18

... warranty does not cover removal or reinstallation costs.This warranty shall not apply if it is shown by Honeywell that vary from state to you. Honeywell's sole responsibility shall be to repair or replace the product within the terms stated above limitation may have any questions concerning this limitation may not apply to...

Owner's Manual - Page 20

Automation and Control Solutions Honeywell International Inc. Rev. 10-04 www.honeywell.com/yourhome Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-0862-4 J.S.