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Honeywell T8775C Support Question

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Question posted by Anonymous-55198 on March 30th, 2012

Rotating Knob Of The T8775c Does Not Set Temperature

When rotating the knob, "set temperarture" does not change or changes incorrectly in unpredictable direction.

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Related Honeywell T8775C Manual Pages

Owner's Manual - Page 1

Owner's Manual - Page 2

DISPLAYS ROOM OR SET TEMPERATURE SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED. T8775 Thermostat (features and operation). 69-1679EF-1 2 (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

... most homes. Operating Your Thermostat NOTE: Batteries are not required because the temperature setting is held permanently in cooling mode when the outdoor temperature is below 50°F (10°C), or damage to compressor could result. SET THE FAN SWITCH: ❑ Auto: Normal setting for improved air circulation. Setting SYSTEM and FAN Switches (T8775C only) ❑ System and...

Owner's Manual - Page 4

... and 45°F to 99°F (7°C to 37°C) in Fig. 1. If a change to the temperature setting is 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. ROOM SET M19489 ROOM SET M19490 69-1679EF-1 4 A indicator points to Room when the room...

Owner's Manual - Page 5

... cooling when outside temperature is set to Heat or Cool (T8775C only). 5 69-1679EF-1 Troubleshooting Guide CAUTION Equipment Damage Hazard. See equipment manufacturer instructions. Heating or cooling does not come on. ❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). Adjust Temperature Setting ❑ To lower the temperature setting, turn the...

Owner's Manual - Page 6

.... ❑ In cooling, 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. ❑ In heating, make sure the temperature setting is above the room temperature and the flame is present in the display (T8775C only). NOTE: If a call Honeywell Customer...