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Honeywell T8775C1005 Support Question

Honeywell T8775C1005 Support Question

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Question posted by bettyjomay24 on October 22nd, 2014

I Have A Honeywell T8775c1005 Digital Round Non-programmable Thermostat 1h/1c.

The green light with the temp is blinking on and off. It will not let me set a different temp.

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Related Honeywell T8775C1005 Manual Pages

Owner's Manual - Page 1

T8775A,C The Digital RoundNon-Programmable Thermostats OWNER'S GUIDE ® U.S. All Rights Reserved 69-1679EF-1 Registered Trademark Patents Pending © 2004 Honeywell International Inc.
Owner's Manual - Page 2

T8775 Thermostat (features and operation). 69-1679EF-1 2 DISPLAYS ROOM OR SET TEMPERATURE SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED. (T8775C ONLY) SELECTS COOL/OFF/HEAT (T8775C ONLY) SELECTS ON/AUTO ROOM SHOWS THAT THE SET CURRENT ROOM TEMPERATURE IS DISPLAYED. DISPLAYS AND ADJUSTS TEMPERATURE SETTING/TURNS BACKLIGHT ON M19470 Fig. 1.
Owner's Manual - Page 3

...; On: the heating and cooling system. The fan runs continuously. SET THE SYSTEM SWITCH: ❑ Heat: The thermostat controls your cooling system. Use for most homes. Setting SYSTEM and FAN Switches (T8775C only) ❑ System and Fan settings are off. ❑ Cool: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems...
Owner's Manual - Page 4

... not made within five seconds, the mode will switch to the room temperature display. ❑ A indicator points to Set when the temperature setting is displayed. Display Temperature Setting NOTE: Your temperature setting can be set anywhere from 40°F to 90°F (4°C to 32°C) in heating and 45°F to 99°F (7°...
Owner's Manual - Page 5

... other equipment. Do not operate cooling when outside temperature is set to Heat or Cool (T8775C only). 5 69-1679EF-1 See equipment manufacturer instructions. Troubleshooting Guide CAUTION Equipment Damage Hazard. Heating or cooling does not come on. ❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C).
Owner's Manual - Page 6

❑ In heating, make sure the temperature setting is below the room temperature and a solid snowflake is running, the thermostat will go into a five-minute delay to protect the compressor. NOTE: If a call Honeywell Customer Care at the register. If you have questions concerning this delay. ❑ Check the system fuse or circuit breaker...
Owner's Manual - Page 8

Rev. 6-04 Printed in Mexico www.honeywell.com/yourhome Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-1679EF-1 J.S. Automation and Control Solutions Honeywell International Inc.
Installation Instructions - Page 1

... about 5 ft (1.5m) above the floor in the trash. Failure to wall. 69-1677EF-1 T8775A,C The Digital RoundNon-Programmable Thermostats The T8775A,C Thermostats provide single-stage temperature control for 24V systems. The T8775A,C models include a thermostat, wallplate (for wiring and mounting thermostat), mounting screws, wall anchors, and a 4074 FAB resistor. See Fig. 1.
Installation Instructions - Page 2

... RC. M19516 Fig. 6. Typical hookup of T8775A in heat-only system with single transformer. All wiring must comply with two transformers. 1 POWER SUPPLY. T8775A,C THE DIGITAL ROUNDNON-PROGRAMMABLE THERMOSTATS Wiring IMPORTANT Use 18-gauge wire to wire the T8775A...
Installation Instructions - Page 3

...) Off Off Electric Warm Air 9 On Off In Floor Radiant Heat Check with the heating equipment in the F position. T8775A,C THE DIGITAL ROUNDNON-PROGRAMMABLE THERMOSTATS CUSTOMIZE THERMOSTAT Setting Fuel Switch (T8775C only) The fuel switch is preset at the top of the thermostat. Temperature Indication. Mounting thermostat to set the switch to the E position. This is the correct...
Installation Instructions - Page 4

... THE DIGITAL ROUNDNON-PROGRAMMABLE THERMOSTATS (T8775C ONLY) SELECTS COOL/OFF/HEAT (T8775C ONLY) SELECTS ON/AUTO ROOM SHOWS THAT THE SET CURRENT ROOM TEMPERATURE IS DISPLAYED. T8775 Thermostat (features... and the FAN switch to Auto. Slide the FAN switch to Auto. 2. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 ...

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