Honeywell T8775C1005 Support Question
Honeywell T8775C1005 Support Question
Find answers below for this question about Honeywell T8775C1005 - Digital Round 24V.Need a Honeywell T8775C1005 manual? We have 2 online manuals for this item!
Question posted by robburns314 on December 31st, 2014
Honeywell T8775c1005
im trying to turn on my heater but the display went blank. I tried turning it to cold then it will come back up but when i turn it off or to heat it just goes blank.
Current Answers
Answer #1: Posted by TechSupport101 on December 31st, 2014 9:52 PM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,305
Member since:
May 24th, 2013 Points: 12,171,305
Hi. Do see number 5 of the steps here
http://www.ehow.com/how_5766844_repair-honeywell-thermostat.html
Related Honeywell T8775C1005 Manual Pages
Owner's Manual - Page 1
All Rights Reserved
69-1679EF-1 Registered Trademark Patents Pending © 2004 Honeywell International Inc. T8775A,C The Digital Round™ Non-Programmable Thermostats
OWNER'S GUIDE
® U.S.
Owner's Manual - Page 2
DISPLAYS AND ADJUSTS
TEMPERATURE SETTING/TURNS
BACKLIGHT ON
M19470
Fig. 1.
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 ROOM OR SET TEMPERATURE
SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED.
Owner's Manual - Page 3
...;F (10°C), or damage to compressor could result. SET THE SYSTEM SWITCH: ❑ Heat: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems are controlled by using SYSTEM and FAN switches located on the top of the thermostat (see Fig. 1).
Setting SYSTEM and FAN Switches (T8775C only)
❑ System and Fan...
Owner's Manual - Page 4
...to the room temperature display.
❑ A indicator points to Set when the temperature setting is displayed.
Backlit Display
❑ The backlight can be turned on by turning the dial, or by...the room temperature 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 ...
Owner's Manual - Page 5
... compressor to compressor or other equipment. Heating or cooling does not come on.
❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). Troubleshooting Guide
CAUTION
Equipment Damage Hazard.
See equipment manufacturer instructions. Adjust Temperature Setting
❑ To lower the temperature setting, turn the dial counterclockwise.
❑ To...
Owner's Manual - Page 6
... minutes, or if a power interruption occurs while the compressor is present in the display (T8775C only).
NOTE:
If a call Honeywell Customer Care at the register. The snowflake 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...
Owner's Manual - Page 8
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. Rev. 6-04 Printed in Mexico
www.honeywell.com/yourhome
Installation Instructions - Page 1
...
Disconnect power supply before installation.
® U.S. T8775A,C
The Digital Round™ Non-Programmable Thermostats
The T8775A,C Thermostats provide single-stage temperature control for 24V systems. The T8775A,C models include a thermostat, wallplate (for your application.
3. INSTALLATION INSTRUCTIONS
Location
Install the thermostat about 5 ft (1.5m) above the floor in the instructions...
Installation Instructions - Page 2
...-cool system with single transformer.
Refer to wire the T8775A,C Thermostats. O
B
2 Rc
G
R
Y
W
1
HEATING RELAY OR VALVE COIL
FAN RELAY
B
Rc
G
2
R
Y
W
COMPRESSOR CONTACTOR
HEATING
1
RELAY OR VALVE COIL
FAN
RELAY
1
1 POWER SUPPLY. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
Wiring
IMPORTANT Use 18-gauge wire to Fig. 2 through 6 for typical...
Installation Instructions - Page 3
... DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
CUSTOMIZE THERMOSTAT
Setting Fuel Switch (T8775C only)
The fuel switch is connected. The E setting allows the fan to turn on immediately with manufacturer for gas or oil systems. If the T8775C is being installed on the back of the thermostat.
Table 2. Mounting thermostat to Wallplate
ENGAGE TABS AT BOTTOM OF THERMOSTAT AND...
Installation Instructions - Page 4
...176;C) in the display and the heat should turn on .
4....Honeywell International Inc. Rev. 6-04
Printed in heating and 45°F to 99°F (7°C to Auto. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
(T8775C ONLY) SELECTS COOL/OFF/HEAT
(T8775C ONLY) SELECTS ON/AUTO
ROOM
SHOWS THAT THE
SET
CURRENT ROOM
TEMPERATURE IS
DISPLAYED.
Heating
1. A flame will display...
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