Home » Honeywell » Thermostats » Honeywell TH8320U1008

Honeywell TH8320U1008 Support Question

Find answers below for this question about Honeywell TH8320U1008 - Touchscreen Thermostat, 3h.
Need a Honeywell TH8320U1008 manual? We have 1 online manual for this item!

Honeywell Overview Questions Manuals Reviews Videos Research

Question posted by tmeincke on August 13th, 2011

Backlight Does Not Work

The backlight does not work when it plugged in to the base on the wall, but if I remove it from the base it works off the batteries. (it did work when it was installed 10 years ago and in the last year it stopped working) What could be the problem.

I Know the Answer!

I have the same question
Request More Information

Current Answers

There are currently no answers that have been posted for this question.
Be the first to post an answer!

Remember that you can earn up to 1,100 points for every answer you submit. The better the quality of your answer, the better chance it has to be accepted.

Related Honeywell TH8320U1008 Manual Pages

Owner's Manual - Page 1

Operating Manual VisionPRO® TH8000 Series Touchscreen Programmable Thermostat 69-1894EFS-01

Owner's Manual - Page 2

...! Copyright © 2009 Honeywell International Inc. All rights reserved. To prevent damage to press touchscreen keys. Registered Trademark. For assistance with dehumidification (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 Need Help? Perchlorate Material...

Owner's Manual - Page 3

... schedule overrides 12 Vacation hold 14 Special features 15 Screen lock 16 Screen cleaning 17 Humidity display & control 18 Appendices Battery replacement 20 Advanced functions 21 In case of difficulty 26 Optional remote sensors 28 Limited warranty 29 This thermostat is below 50˚F (10˚C). 1 69-1894EFS-01 CAUTION: EQUIPMENT DAMAGE HAZARD.

Owner's Manual - Page 4

...give you know when to service or replace filters, batteries and other critical components. • Large touchscreen display with backlight is easy to read-even in the dark. ...Just pull thermostat from the wall to set . • Change/check reminders let you many years of the level you set schedules. • EnergyStar® compliant to greatly reduce your new thermostat Congratulations! ...

Owner's Manual - Page 5

... bed at 10 pm See pages 10-13 ENGLISH ONE-TOUCH TEMP CONTROL: You can override the program schedule at 6 pm and go to Auto See page 7 3. Then check the settings below and change if needed: 1. AThbiosutthyeorumronsetawt tisherremadoysttaot go . Just set the time and day. VisionPRO® TH8000 Series Your new thermostat is...

Owner's Manual - Page 10

... SCREEN MORE M29349 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 off. • Auto: Thermostat automatically selects heating or cooling depending on the indoor temperature.** • Em Heat (only...

Owner's Manual - Page 11

... you want while you leave for weekdays and weekends. WAKE 6:00 am 70 ° LEAVE 8:00 am 62 ° RETURN 6:00 pm 70 ° SLEEP 10:00 pm 62 ° Set to the time you return home and the temperature you want during the morning, until bedtime. ENGLISH VisionPRO® TH8000...

Owner's Manual - Page 12

...® program settings. ENGLISH Operating Manual EnergyStar® settings for maximum cost savings This thermostat is pre-set to adjust times and temperatures of each time period.) Wake (6:00 am) Leave (8:00... am) Return (6:00 pm) Sleep (10:00 pm) Heat (Mon-Fri) 70 ° 62 ° 70 ° 62 ° Cool (Mon-Fri...

Owner's Manual - Page 17

... 70° by the time you wake at the time you set to Auto, the thermostat automatically selects heating or cooling depending on before 6 am , and the temperature to 70°...temperature settings, so the temperature is displayed on screen. Adaptive Intelligent Recovery: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to wait a few minutes before...

Owner's Manual - Page 19

... use the damp cloth to resume normal operation, or press SCREEN again if you can clean the screen without changing any liquid directly on the thermostat. Avoid abrasive cleansers. Screen cleaning VisionPRO® TH8000 Series Press SCREEN 6:00PM SCHED HOLD CLOCK SCREEN MORE M29358 Screen lock timer (30 seconds) 30 OK...

Owner's Manual - Page 20

... Humidity SCHED HOLD CLOCK SCREEN MORE Indoor humidity level M29360 Select models can display the current indoor humidity level. (If an optional outdoor sensor is installed, the outdoor temperature is shown instead of the humidity level. Press MORE to display the humidity level.) ENGLISH 69-1894EFS-01 18

Owner's Manual - Page 21

...) Press MORE until the humidity screen is displayed 6:00PM SCHED HOLD CLOCK SCREEN MORE Press to set the desired humidity level. The thermostat monitors humidity. When humidity increases, the thermostat runs the air conditioner longer to reduce humidity (up to exit without saving changes. DONE Press to save and exit, or press...

Owner's Manual - Page 22

... once a year, or before batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries immediately when the LO BATT warning begins flashing. The warning flashes about 30 days before leaving home for more than a month. Operating Manual ABbatotuetryyoruerplnaecwemtheenrtmostat Grasp thermostat and pull to remove fom...

Owner's Manual - Page 24

... change the current date: Options: 1 - 31 69-1894EFS-01 22 Operating Manual Adbvoaunt cyeodurfunnecwtiothnesrmostat ENGLISH Year setting (first two digits) Function 0120 Press s/t to change the first two digits of the year: Options: 20 = Year 20xx 21 = Year 21xx Year setting (second two digits) Function 0130 Press s/t to change the last two digits of the...

Owner's Manual - Page 25

ENGLISH Advanced functions VisionPRO® TH8000 Series Program schedule on/off Function 0160 Press s/t to turn the program schedule on /off Function 0330 The thermostat is pre-programmed to automatically adjust to daylight savings time. Temperature format (°F/°C) Function 0320 Press s/t to daylight savings time (2007 and beyond, for ...

Owner's Manual - Page 26

... after 3 months 2 Reminder after 6 months 3 Reminder after 365-day run time (about 3 years) Note: Press RESET to cancel the alert Humidifier pad change reminder Function 0510 This feature displays an... to set the desired interval: Options: 0 Off (no reminder to change furnace filter) 1 Reminder after 10-day run time (about 1 month) 2 Reminder after 30-day run time (about 3 months) 3 ...

Owner's Manual - Page 28

...;C) ENGLISH Backlight is dim • If thermostat is battery powered, make sure the thermostat is pressed. 69-1894EFS-01 26 Make sure heating and cooling temperatures are correctly installed (see ...8226; Cool: 50° to 99°F (10° to make sure fresh AAA alkaline batteries are correctly installed (see page 20). • If thermostat is AC powered, a dim display is normal....

Owner's Manual - Page 29

Auto indicates the thermostat is on . • Make sure furnace door is closed securely. • If "Wait" is displayed, the compressor protection timer is following the programmed fan setting. ...

Owner's Manual - Page 30

If an indoor remote sensor is installed, the display shows the indoor temperature at the location of temperature readings ...Inside temperature Outside temperature M29367 If an outdoor sensor is installed, the current outdoor temperature is installed, the display shows an average of the sensor. (The internal sensor in the thermostat is disabled.) If more than one indoor sensor is displayed...

Owner's Manual - Page 33