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Question posted by judycarda on February 9th, 2022

Em Heat

I stupidly pressed the em heat button. Now our unit will not turn on. Is there a diy fix for this?

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Answer #1: Posted by SonuKumar on February 10th, 2022 9:26 AM

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Related Honeywell TH3210D1004 Manual Pages

Owner's Manual - Page 1

PRO TH3000 Series Non-Programmable Digital Thermostat Operating Manual 69-1776EFS-01

Owner's Manual - Page 2

...; 2009 Honeywell International Inc. Registered Trademark. Patents pending. ENGLISH M29416 This manual covers the following models: TH3110D: For 1 Heat/1 Cool systems TH3210D: For 2 Heat/1 Cool heat pump systems only (Pull thermostat from wallplate and turn over to find model number.) CAUTION: EQUIPMENT DAMAGE HAZARD. For assistance with this product please visit http://yourhome.honeywell...

Owner's Manual - Page 3

ENGLISH Table of contents About your new thermostat Thermostat features 2 Quick reference to controls 3 Quick reference to display 4 Thermostat Operation System switch (Heat/Cool 5 Fan switch (Auto/On 6 Temperature controls 7 Compressor protection 8 PRO TH3110D / TH3210D Appendices Battery replacement 9 In case of difficulty 10 Customer assistance 12 Accessories 12 5-...

Owner's Manual - Page 4

ENGLISH Operating Manual About your new thermostat Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to read, even in the dark. • Displays both room temperature and temperature setting. • Built-in compressor protection. 69-1776EFS-01 2 Features • Large, clear, backlit display is easy to -use, push-button climate control.

Owner's Manual - Page 5

... screen PRO TH3110D / TH3210D Temperature adjustment (see page 7) ENGLISH M29417 Fan Switch (see page 5) • Cool: Cooling system control. • Off: All systems off. • Heat: Heating system control. • Em Heat: Emergency & Auxiliary Heat control. System switch (see page 6) On: Fan runs continuously. Compressor is on. Auto: Fan runs only when...

Owner's Manual - Page 6

... Set To 75 75 Low battery warning (see page 9) Replace Batt Em Aux Heat On M29418 System Status • Cool On: Cooling system is on. • Heat On: Heating system is on. • Em: Emergency heat is on. ** • Aux: Auxiliary heat is on. ** Temperature setting If "Heat On" or "Cool On" is flashing, compressor protection is engaged...

Owner's Manual - Page 7

... cooling system, depending on the season. • Cool: Cooling system control. • Off: All systems are off. • Heat: Heating system control. • Em Heat: Emergency & Auxiliary Heat control. Do not operate cooling system when outdoor temperature is locked out. (Select models only.) CAUTION: EQUIPMENT DAMAGE HAZARD. Compressor is below 50°F (10&#...

Owner's Manual - Page 8

If set to Auto or On. ENGLISH Operating Manual Fan switch Set the FAN switch to "On," the fan runs continuously. M29417 Set FAN switch to choose whether the fan runs continuously or only as needed. 69-1776EFS-01 6 In "Auto" mode (the most commonly used setting), the fan runs only when the heating or cooling system is on.

Owner's Manual - Page 9

ENGLISH ATebmoupteyraotuurrenecwontthreorlms ostat Inside 78 Set To 75 Cool On PRO TH3110D / TH3210D Press the temperature adjustment buttons until the temperature you want is set to the system you want to control (Heat or Cool). M29419 Temperature adjustment buttons. 7 69-1776EFS-01 Note: Make sure the SYSTEM switch is displayed in the upper right portion...

Owner's Manual - Page 10

...the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). This feature forces the compressor to the compressor in compressor protection... after shutdown. When the safe wait time has elapsed, the message stops flashing and the compressor turns on. 69-1776EFS-01 8 This feature helps prevent damage to wait 5 minutes before restarting. ENGLISH Operating Manual...

Owner's Manual - Page 11

... months before leaving home for backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries when the REPLACE BATT warning begins flashing. Turn thermostat over, insert fresh AA alkaline batteries, then reinstall thermostat. Batteries provide backup power to remove thermostat from wallplate. M29422 PRO TH3110D / TH3210D M29421 Batteries...

Owner's Manual - Page 12

.... Make sure the temperature is set higher than the Inside temperature. • Wait 5 minutes for the system to Heat (see page 5). ENGLISH Operating Manual In case of difficulty If you have difficulty with your thermostat, please try the following suggestions. Display is blank • Check circuit breaker and reset if necessary. •...

Owner's Manual - Page 13

... below the displayed current room temperature (see page 7). 11 69-1776EFS-01 "Cool On" is not • Set the System switch to Heat, and set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to the compressor (see...

Owner's Manual - Page 14

... visit http://yourhome.honeywell.com. Accessories/replacement parts M29421 To order, please call Honeywell Customer Care toll-free at 1-800-468-1502. Cover plate assembly*........ Turn thermostat over to cover marks left by old thermostats. M29423 69-1776EFS-01 12 ENGLISH Operating Manual Customer assistance Pull at bottom to remove...