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Honeywell RTH6400 Support Question

Honeywell RTH6400 Support Question

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Question posted by pomalley012617823 on October 8th, 2012

Hold Button

If you change the temperature and push the "hold" button, how do you release the "hold"?

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Related Honeywell RTH6400 Manual Pages

Owner's Manual - Page 1

Quick Installation Guide RTH6400 Series Programmable Thermostat 69-2210EF-03
Owner's Manual - Page 2

It is Easy Label wires and remove your old thermostat Install and wire your new thermostat Set your new thermostat to match your heating/cooling system - Call 1-800-468-1502 for the most common system We are here to help. Installation is preset for wiring assistance before returning the thermostat to the store. 69-2210EF-03 ii
Owner's Manual - Page 4

If so, see back cover for proper disposal instructions. Leave wallplate in place Is there a sealed tube containing mercury? 2 Remove Old Thermostat Remove old thermostat but leave wallplate with wires attached. Old thermostat Cover 69-2210EF-03 2 M28099
Owner's Manual - Page 6

Pull here to remove wallplate from New Thermostat Remove battery holder. Wallplate M28343 69-2210EF-03 4 4 Separate Wallplate from new thermostat.
Owner's Manual - Page 7

M2834 Thermostat M28344 5 69-2210EF-03 5 Insert Quick Reference Card Insert quick reference card into slot in back of thermostat.
Owner's Manual - Page 10

8 Install Batteries Install two AA alkaline batteries. Back of thermostat M28346 69-2210EF-03 8
Owner's Manual - Page 11

9 Install Thermostat onto Wallplate Install thermostat onto the wallplate on the wall. M28347 9 69-2210EF-03
Owner's Manual - Page 15

RTH6400 ASybsotuetmyosuertunpew thermostat Press and hold the s and FAN buttons until the screen changes (approximately 5 seconds). M28349 Press NEXT to advance to change settings. SETUP WIRING ASSISTANCE M28348 Press s or t to next function. 13 69-2210EF-03 TROUBLESHOOTING Function 1 Setting 0 Done Next Press DONE to exit and save settings.
Owner's Manual - Page 16

M28351 69-2210EF-03 14 TROUBLESHOOTING When correct setting is selected, press NEXT to change setting. SETUP Advanced Installation Guide Function 1: System type Press the s or t button to select the type of system you have in your home: 10 WIRING ASSISTANCE Done Next ... you could turn the fan on and off with a fan switch on your old thermostat.) Press to display next function.
Owner's Manual - Page 17

ASSISTANCE TROUBLESHOOTING Press to change setting. When correct setting is used in heating or cooling: NOTE: If Function... you connected a wire labeled "B" to the O/B W wire terminal (see page 21). SETUP WIRING RTH6400 Function 2: Heat pump changeover valve Press the s or t button to select whether your changeover valve is selected, press NEXT to display next function. M28351 15 69-...
Owner's Manual - Page 18

...Press to display next function. When correct setting is selected, press NEXT to change setting. SETUP WIRING Advanced Installation Guide Function 3: Heating fan control Press the s or t button to select your heating system and fan operation: NOTE: If Function 3 does... operation). 1 Electric heat: Use this setting if you have an electric heating system (thermostat controls fan operation).
Owner's Manual - Page 19

... SETUP RTH6400 Function 5: Heating cycle rate Press the s or t button to select... your heating system and optimize its operation: NOTE: If Function 5 does not appear, please turn to the next page to continue. 55 WIRING ASSISTANCE Done Next M28354 5 Gas or oil furnace: Use this setting if you have a standard gas or oil furnace that is selected, press NEXT to change...
Owner's Manual - Page 20

When correct setting is selected, press NEXT to change setting. NOTE: System maintains a minimum 3ºF difference between heat ... (Heat/Off/Cool/Auto) Automatically turns on heat or cool based on room temperatures. SETUP Advanced Installation Guide Function 12: Manual/Auto Changeover Press the s or t button to option 0 if the outside temperature drops below 50ºF (10ºC).
Owner's Manual - Page 21

... RTH6400 Function 13: Smart Response® Technology Press the s or t button ...to display next function. When correct setting is selected, press NEXT to select Smart Response® Technology: 13 1 Done Next M28356 1 Smart Response® Technology ON 0 Smart Response® Technology OFF NOTE: See Operating Manual for information on Smart Response® Technology. Press to change...
Owner's Manual - Page 22

... Guide AFubnocuttioynou1r4n: eTwemthpermatousrteadt isplay Press the s or t button to select Fahrenheit or Celsius temperature display: 14 0 Done Next 0 Fahrenheit temperature display (°F) 1 Celsius temperature display (°C) M28357 Press to exit and save changes. When correct setting is selected, press DONE to change setting. M28351 ASSISTANCE TROUBLESHOOTING 69-2210EF-03 20
Owner's Manual - Page 23

... Rc terminals, remove metal jumper (see notes, below). Wrap B wire with electrical tape. 21 69-2210EF-03 RTH6400 Wiring If labels do not use C, X or B. SETUP WIRING ASSISTANCE TROUBLESHOOTING M28418 If wires will be connected to...of wire with electrical tape and do not match letters on the thermostat, check the chart below and connect to terminal as shown here (see page 6).
Owner's Manual - Page 24

... heating and cooling equipment (see page 7). Cannot change ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to match your thermostat, please try the following suggestions. ASSISTANCE TROUBLESHOOTING 69-2210EF-03 22 Temperature Make sure heating and cooling settings do not...
Owner's Manual - Page 25

... to make sure in system (see page 15). Make sure the temperature is set lower than the Inside respond temperature. • Press SYSTEM button to set system to Cool. SETUP WIRING Troubleshooting RTH6400 Heating or • Press SYSTEM button to set higher than the Inside temperature. • Check circuit breaker and reset if necessary. • Make...
Owner's Manual - Page 27

... Cover plate assembly Part No. 50002883-001 *Use to cover marks left by old thermostats. To save time, please remove the battery holder and note your model number and date code before calling. SETUP ACbuosutotmyoeur ransseiwsttahnecremostat RTH6400 For assistance with this product, please visit http://DIYthermostats.honeywell.com or call Honeywell Customer...
Owner's Manual - Page 30

...Drive Toronto, Ontario M1V 4Z9 http://DIYthermostats.honeywell.com Printed in a sealed tube. Rev. 08-08 Contact your old thermostat in the trash if it contains mercury in U.S.A. D542,677 and other patents pending. © 2008 Honeywell International Inc....: To avoid possible compressor damage, do not run air conditioner if the outside temperature drops below 50°F (10°C).

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