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Thm5421r Help No Heat
Just installed the THM5421R EIM prestige 2.0 T-STAT got fan but no heat! Why please help
Just installed the THM5421R EIM prestige 2.0 T-STAT got fan but no heat! Why please help
(Posted by Anonymous-144769 9 years ago)
When Wiring A Truesteam Hundifier Do You Use A Separate 24v Thru H Term.
(Posted by lgsmith65 10 years ago)
How To Test Interface For Thm5421c
(Posted by nchantd1 11 years ago)
I Have A Thm5421 Honeywell With A Error Code 119 How Do You Fix It ?
(Posted by pennerf 12 years ago)
Warranty
What is the warranty on the THM5421c EQUIPMENT INTERACE MODULE?
What is the warranty on the THM5421c EQUIPMENT INTERACE MODULE?
(Posted by gomiami 12 years ago)
Popular Honeywell THM5421 Manual Pages
Owner's Manual - Page 4
... to Auto See page 6 3. Set humification, dehumidification & ventilation controls, if applicable See pages 17-19
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and manually adjust the temperature (see pages 10-11).
69-1815EFS-06
2 Set clock...See page 5 2. Operating Manual
About your new thermostat
Your new thermostat is pre-programmed and ready...
Owner's Manual - Page 8
You can press FAN to override the fan settings you press FAN again to select Auto, and return to select fan operation, then press DONE:
&#...with the heating or cooling system. Press FAN to the fan schedule (see page 9).
Operating Manual
Fan setting
WED
70 FAN Inside
AUTO
SYSTEM HEAT
6:01 AM
70 Set To
Following Schedule
SCHED HOLD CLOCK SCREEN MORE
Press FAN
Note: If a fan schedule is...
Owner's Manual - Page 9
...
70 FAN Inside
AUTO
SYSTEM HEAT
6:01 AM
70 Set To
Following Schedule
SCHED HOLD CLOCK SCREEN MORE
Press SYSTEM
VisionPRO® IAQ
Press the SYSTEM button to select, then press DONE:
• Heat: Thermostat controls only the heating system.
• Cool: Thermostat controls only the cooling system.
• Off: Heating and cooling systems are...
Owner's Manual - Page 10
... they can program four time periods each day, with different settings for each time period.)
Wake (6:00 am)
Leave (8:00 am)
Return (6:00 pm... °
[Or cancel period]
82 °
69-1815EFS-06
8 This thermostat is pre-set to adjust times and temperatures of each day. Operating Manual
EnergyStar® settings for maximum cost savings
It's easy to program your heating/cooling expenses by as...
Owner's Manual - Page 12
... program schedule
69-1815EFS-06
10 To cancel the temporary setting at any time, press CANCEL (or SCHED).
When the timer expires, the program schedule will temporarily override the temperature setting for the current time period. The new temperature will resume. Operating Manual
Program schedule override (temporary)
Adjust temperature
WED
70 FAN Inside...
Owner's Manual - Page 13
This will be maintained 24 hours a day until you set will turn off the program schedule. Whatever temperature you manually change it or press CANCEL (or SCHED) to cancel "Hold" and resume the program schedule.
Press CANCEL (or SCHED) to permanently adjust the temperature. Program ...
Owner's Manual - Page 14
... the schedule to select the number of days. Press s or t to set the temperature you want, then press s or t to set the time of day you return. After this number of days have elapsed...be maintained 24 hours a day for the number of time. Operating Manual
Vacation hold
1WSEDet temperature
70 FAN Inside
AUTO
55 Set To
SYSTEM
HEAT
Hold Temperature Until
6:00PM
SCHED
HOLD CLOCK SCREEN MORE...
Owner's Manual - Page 15
... you set to Auto, the thermostat automatically selects heating or cooling depending on screen. Flashing message: Reminder to reactivate the alert timer. After replacement, press RESET to replace filter or UV lamp.
During the wait time, the message "Wait" is vacant during the humid season. This will control temperature and humidity to control humidity while your installer.)
13...
Owner's Manual - Page 16
... displays SCREEN LOCKED for screen lock options
To prevent tampering, the screen can be partially or fully locked. Operating Manual
Screen lock
WED
70 FAN Inside
AUTO
SYSTEM HEAT
6:00PM
SCREEN LOCKED
70 Set To
Following Schedule
43
SCHED HOLD CLOCK SCREEN MORE
See advanced function 0670 (page 26) for several seconds...
Owner's Manual - Page 18
... than one indoor sensor is displayed.
Operating Manual
Optional remote sensors
WED
70 FAN Inside
AUTO
SYSTEM HEAT
6:01 AM
70 Set To
Following Schedule Outside
43
SCHED HOLD CLOCK SCREEN MORE
Inside temperature
Outside temperature
If an outdoor sensor is installed, the current outdoor temperature is installed, the display shows an average of...
Owner's Manual - Page 20
...69-1815EFS-06
18
If you don't have a dehumidifier, the thermostat activates the air conditioner to exit without saving changes.
If installed to control a dehumidifier, the thermostat can activate it as 3°F lower than your temperature setting). Operating Manual
Dehumidification control
Press to select Auto or Off
Press to set the desired humidity level and operation (Auto or Off).
Owner's Manual - Page 24
Thermostat is non-programmable. 4 Program schedule is lighted:
0 Light on for approx. 45 seconds after keypress
69-1815EFS-06
22
Restore Energy Star® schedule
Function 0165
Press s/t to restore default Energy Star settings:
Options: 0 No change 1 Restore factory default Energy Star settings
Backlight
Function 0280
Options:
Press s/t to turn the program schedule on...
Owner's Manual - Page 26
Press s/t to set the desired reminder interval:
Options:
0 Off 1 10-day run time 2 30-day run time 3 60-day run ... 14 365 calender days E Auto Alert (requires optional equipment)
Note: Press RESET to change the furnace filter. Operating Manual
Advanced functions
Furnace filter change reminder
Function 0500
This feature displays an alert to remind you to cancel the alert
69-1815EFS-06
24...
Owner's Manual - Page 28
...Manual
Advanced functions
Program schedule periods
Function 0540
Press s/t to set the number of program periods:
Options: 2 Two program periods (Wake, Sleep) 4 Four program periods (Wake, Leave, Return, Sleep)
Clock format
Function 0640
Press s/t to set...screen lock setting (see page 14):
Options: 0 Screen is unlocked (fully functional) 1 All functions locked except temperature controls and ...
Owner's Manual - Page 29
...set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C) • Cool: 50° to 99°F (10° to make sure the thermostat ...Err" appears on screen
• Contact your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.
Your equipment may need service or repair.
27
69-1815EFS-06 Display is blank
•...
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