Honeywell RTH7400 Support Question
Honeywell RTH7400 Support Question
Find answers below for this question about Honeywell RTH7400.Need a Honeywell RTH7400 manual? We have 1 online manual for this item!
Question posted by DONNAUDC on June 23rd, 2011
Screen Frozen On Permanent Hold
I pressed the up arrow key to raise the temperature. The temperature setting did not stop until it got to 99 degrees. Now it is stuck on permanent hold on 99 and the screen is not responding. Is there anything I can do?
Current Answers
Related Honeywell RTH7400 Manual Pages
Owner's Manual - Page 1
Operating Manual
RTH7400/RTH7500 Series
Programmable Thermostat
69-2222EF-03
Owner's Manual - Page 2
...possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).
For assistance with ... 2010 Honeywell International Inc. Registered Trademark.
This manual covers the RTH7400 and RTH7500 models.
(Pull thermostat from wallplate and turn over to find model number) This thermostat contains a Lithium battery which may apply, See www.dtsc.ca....
Owner's Manual - Page 3
... to status display 5
Programming & Operation Clock setting 6 Fan setting 7 System setting 8 Using program schedules 9 Program schedule overrides 13 Auto Changeover 15 Filter reminder 17 Special features 18
RTH7400/RTH7500 Series
Appendices Battery replacement 19 Customer assistance 20 In case of difficulty 21 Limited warranty 23
This thermostat is pre-programmed and ready to check...
Owner's Manual - Page 5
... to do is ready to go ! Program schedules: Preset to energy-saving levels while you're at any time, and manually adjust the temperature (see pages 13-14).
3
69-2222EF-03
Select system setting: Preset to Auto To change if needed:
1.. RTH7400/RTH7500 Series
Your new thermostat is pre-programmed and ready to go .
Owner's Manual - Page 6
Operating Manual
Quick reference to controls
Arrow buttons Press to adjust temperature (see pages 11-14), or to select fan operation (see page 7) or system (see page 6) or furnace filter reminder.
System & Fan Press to make selections from screen menus.
Schedule Press to set program schedule (see pages 11-12).
69-2222EF-03
4
M28426
Clock & More Press to set clock (see page 8).
Owner's Manual - Page 7
... status display
Current day of week
Current inside temperature
RTH7400/RTH7500 Series Current time
Smart Response® Technology in effect (see page 15)
System setting (see page 8)
Mon
75 Recovery System Cool
6:01 AM
Fan Auto
Set to
75
Heat On
System & Fan
Schedule
Clock & Mode
Temperature setting
Fan setting (see page 7)
M28078
Other display messages: •...
Owner's Manual - Page 8
Press and hold s or t to exit without changing the time). Note: To change the current week day display, see System Setup in your Installation Guide.
6
Press DONE to save & exit (or press GO BACK to ... all date/time information. Operating Manual
Clock setting
Press CLOCK
System & Fan
Schedule
Clock & More
Adjust time, then press DONE
Mon
M28079
6:01 AM
Go Back
69-2222EF-03
Done ...
Owner's Manual - Page 9
Fan setting
Press SYSTEM & FAN
System & Fan
Schedule
Clock & More
M28081
Press FAN to select mode, then press DONE
RTH7400/RTH7500 Series
Press SYSTEM & FAN, then FAN to select fan operation:
• On: Fan is always on. • Auto: Fan runs only when the heating or
cooling system is on. System Heat
System
Fan Auto Fan
Done
M28082
7
69-2222EF-03
Owner's Manual - Page 10
... left to select system: • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat automatically selects heating or cooling depending on how your thermostat was installed.
8 Note: The Auto and Em Heat system settings may not appear, depending on the indoor temperature. • Off: All systems are...
Owner's Manual - Page 11
... time periods each day, with different settings for maximum energy savings.
LEAVE
8:00 am
70 °
Set to the time you leave home and the temperature you want while you leave for the day. RTH7400/RTH7500 Series
Save money by setting program schedules
It's easy to bed and the temperature you want during the morning, until...
Owner's Manual - Page 13
... to
62 Heat
Next Step
Done
1. Press NEXT STEP twice, then press s or t to set Wake time for this time period.
5. Press NEXT STEP, then s or t to set Cool temperature for selected days.
4. Repeat steps 3-5 to highlight Mon-Fri (they will share the same settings).
3. Press NEXT STEP, then s or t to set Heat temperature for this time period.
6.
M28086
Select...
Owner's Manual - Page 15
... override (temporary)
RTH7400/RTH7500 Series
Mon
62
System Heat
System & Fan
Adjust temperature
Temporary Set to
68 6:08 AM Heat On
Fan Auto
Use Schedule
Clock & More
Press USE SCHEDULE to resume program schedule
M28087
Press s or t to the level you've programmed for the current time period.
This will temporarily override the temperature setting for the...
Owner's Manual - Page 16
... will be maintained 24 hours a day, until you set will turn off the program schedule. Press HOLD to adjust temperature, then press HOLD. Operating Manual
Program schedule override (permanent)
Mon
62
System Heat
Adjust temperature
Set to
6:08 AM 68
Fan Auto
Permanent Hold
Hold
Cancel
Press s or t to turn off program schedule and maintain set temperature
M28088
69-2222EF-03
14
Owner's Manual - Page 17
... takes place (temporarily or permanently) the thermostat will also show the thermostat is raised to where it gets within 3-dgrees of the cool setting, the display will show an up arrow next to "cool" to select between the cool and heat settings. The display will automatically adjust the cooling and heating settings to maintain a 3-degree separation between the heat...
Owner's Manual - Page 18
... arrow next to heat will show the thermostat is increasing to maintain a 3-degree separation. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C).
69-2222EF-03
16
Tue
69 1:09PM System Auto Fan Auto Heat
Temporary Set To
74 Heat Cool
System
Hold
Cancel...
Owner's Manual - Page 19
AFibltoeurtryeomuirndnewr thermostat
RTH7400/RTH7500 Series
Press RESET after changing the filter, to restart the timer.
Press RESET after changing filter
Change Filter
70
Set to
6:01 AM 70 Heat On
System
Fan Auto Heat
Reset
Schedule
Clock & More
M28089
Press MORE to reset reminder interval
60
Days
Reset
Next
Done
If activated during installation, the furnace filter...
Owner's Manual - Page 20
... few minutes before a scheduled time period. The thermostat will come on screen. When the system is displayed on before 6 am , and the temperature to 70°. The message "Recovery" is ...allows the thermostat to "learn" how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you wake at least 3 degrees apart.
...
Owner's Manual - Page 21
... flashes about 30 days before leaving home for more than a month.
Battery replacement
RTH7400/RTH7500 Series
Grasp thermostat and pull to run on AC power when installed. Even if the warning does not... or before batteries are optional (to provide backup power) if your thermostat was wired to remove from wallplate
M28103
Batteries are depleted. Install fresh batteries immediately when the...
Owner's Manual - Page 23
... heating and cooling temperatures are correctly installed (see page 19). not change)
21
69-2222EF-03
temperature will • Cool: 50° to 99°F (10&#...thermostat is battery powered, make sure fresh AA alkaline
batteries are set to acceptable ranges:
key presses (or • Heat: 40° to 90°F (4.5° to 37°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat
RTH7400...
Owner's Manual - Page 29
Mode d'emploi
Série RTH7400/RTH7500
Thermostat programmable
69-2222EF-03
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