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 randywsmith on November 16th, 2011
Turn A/c On
I just recently turned the system off, due to season change. unseasonable warmth requires me to turn it back on, it wont go on. I can change the fan from auto to on etc, I can change the date and weekly settings. I cannot , however turn the system from off to on? Please help
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
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.gov/hazardouswaste/perchlorate
CAUTION: EQUIPMENT DAMAGE HAZARD. Need Help? For assistance with this product please ...
Owner's Manual - Page 3
...contents
About your new thermostat Thermostat features 2 Programming at a glance 3 Quick reference to controls 4 Quick reference 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...
Owner's Manual - Page 4
... been designed to give you many years of the level you set. • Change/check reminder lets you know when to replace furnace filter. • Large display with backlight is easy to read-even in the dark.
69-2222EF-03
2 You've just purchased the world's most advanced, easy-to -follow menu programming...
Owner's Manual - Page 5
Select fan setting: Preset to Heat To change , see page 8
4.. Select system setting: Preset to Auto To change , see page 7
3.. This thermostat is set the time and day. Set clock See page 6
2.. All...go . Then check the settings below and change , see pages 13-14).
3
69-2222EF-03 Program schedules: Preset to go! RTH7400/RTH7500 Series
Your new thermostat is pre-programmed and ...
Owner's Manual - Page 7
Quick reference to 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: • Cool...
Owner's Manual - Page 9
System Heat
System
Fan Auto Fan
Done
M28082
7
69-2222EF-03 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.
Owner's Manual - Page 10
... are off. • Em Heat (only for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Operating Manual
System setting
Press SYSTEM & FAN
System & Fan
Schedule
Clock & More
Press SYSTEM to select mode, then press DONE
M28081
System Heat
System
Fan Auto Fan
69-2222EF-03
Done M28083
Follow steps at left to select system...
Owner's Manual - Page 11
... you return home and the temperature you leave for the day. RETURN
6:00 pm
70 °
Set to bed and the temperature you are away (usually an energy-saving level).
RTH7400/RTH7500 Series
Save money by setting program schedules
It's easy to the time you awaken and the temperature you want during the...
Owner's Manual - Page 12
Operating Manual
Energy saving settings for maximum cost savings
This thermostat is pre-set with energy saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.)
...
Owner's Manual - Page 13
... day(s) Select time Select temp
11
69-2222EF-03 RTH7400/RTH7500 Series
To adjust program schedules (RTH7400 only)
Press SCHEDULE
System & Fan
Schedule
Clock & More
Press EDIT
Go Back
Edit
M28084 View
MON TUE WED THU FRI
Go Back
Period
6:00 Wake AM
M28085
Set to save & exit. Press SCHEDULE, then EDIT to highlight...
Owner's Manual - Page 15
... SCHEDULE.
13
69-2222EF-03 The new temperature will temporarily override the temperature setting for the current time period.
Program schedule 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...
Owner's Manual - Page 16
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 will be maintained 24 hours a day, until you manually change it, or press USE SCHEDULE to cancel "Hold" and resume the program schedule.
Press...
Owner's Manual - Page 17
... show an up to maintain a 3-dgreee separation. For example, if the heat temperature is raising the cool setting up arrow next to "cool" to show both air conditioning and heating are currently adjusting. RTH7400/RTH7500 Series
AubtooutCyhoaunrgneeowvetrhermostat
Use this feature in Auto, the thermostat automatically selects heating or cooling depending on the same day.
Owner's Manual - Page 18
...
AubtooutCyhoaunrgneeowvetrhermostat
If the cool temperature is lowered to where it gets close to the heat setting, an arrow next to heat will show the thermostat is increasing to maintain a 3-degree separation.
Tue
69 1:09PM System Auto Fan Auto Heat
Temporary Set To
74 Heat Cool
System
Hold
Cancel
M27486
The triangle indicates the cool temperature is...
Owner's Manual - Page 19
AFibltoeurtryeomuirndnewr thermostat
RTH7400/RTH7500 Series
Press RESET after changing the filter, to replace your filter. M28090
17
69-2222EF-03
Press MORE, then NEXT. 2. 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...
Owner's Manual - Page 21
... batteries immediately when the LO BATT warning begins flashing.
The warning 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 appear, you should replace batteries once a year, or...
Owner's Manual - Page 23
...• If 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 32°C).
not change)
21
69-... be corrected quickly and easily. AInbcoausteyoouf rdnifefiwcutlhtyermostat
RTH7400/RTH7500 Series
If you have difficulty with your thermostat, please try the following suggestions.
Owner's Manual - Page 25
... Dr. N., Golden Valley, MN 55422, or whether a replacement product can be free from the date of purchase by the consumer. This warranty shall not apply if it ; or
(ii) call ...,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you . RTH7400/RTH7500 Series
A1-byoeuatr yliomuirtendewwathrrearnmtyostat
Honeywell warrants this product, excluding battery...
Owner's Manual - Page 29
Mode d'emploi
Série RTH7400/RTH7500
Thermostat programmable
69-2222EF-03
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