Honeywell T8090A Support Question
Honeywell T8090A Support Question
Find answers below for this question about Honeywell T8090A.Need a Honeywell T8090A manual? We have 1 online manual for this item!
Question posted by bipcar on February 10th, 2012
Digital Replacement For T8090a?
Is there Honeywell digital replacement for T8090A?
Steam boiler
Current Answers
Answer #1: Posted by BusterDoogen on February 11th, 2012 4:47 PM
BusterDoogen
Member since:
October 30th, 2011 Points: 28,565,447
Member since:
October 30th, 2011 Points: 28,565,447
I would try a Lowe's or HD, take your thermastat with you if possible.
If you can not visit on e of these try here.
That thermostat is obsolete , the one at the following link is the recommended replacement.
http://customer.honeywell.com/honeywell/ProductInfo.aspx/TH8110U1003
You can also replace it with the one at the following link,
http://customer.honeywell.com/honeywell/ProductInfo.aspx/TH6110D1021
Creds to: Mark Henley
Related Honeywell T8090A Manual Pages
Owner's Manual - Page 1
Heating or Cooling Thermostat and Wallplate or
Heating/Cooling Thermostat and Subbase
T8090A/191108A, Q682B
OWNER'S MANUAL 1
696-095-07547-4-22
Owner's Manual - Page 2
... this control, or of an old control containing mercury in your new thermostat.
Contact your local waste management authority for years to come. The Honeywell name is replacing a control that contains mercury in the trash. This allows you have questions, call Honeywell Inc. Welcome to the world of energy savings with your fuel costs...
Owner's Manual - Page 3
TABLE OF CONTENTS
Features Of Your Thermostat ...4 Setting The Temperature ...7 Inserting Clock Batteries ...8 Setting The Clock ...9 Programming ...10 Troubleshooting ...14 Servicing The Thermostat ...23 Cycle Rate Adjustment ...23 Thermometer Adjustment ...24 Warranty ...27
3
69-0574-2
Owner's Manual - Page 4
... WHEEL. Lift it up and
remove to set by program pins.
8 TEMPERATURE SETTING LEVERS. Arrow head indicates
time for
energy savings and normal temperature
periods.
2 THERMOSTAT COVER. Features Of Your Thermostat
1 FLIP-UP COVER.
Owner's Manual - Page 6
15 191108AJ WALLPLATE. Provides mounting base, wiring connections and manual switching control for heating-only or cooling-only thermostat.
15
16 Q682B SUBBASE. Provides mounting base and wiring connections for heating/cooling thermostat.
69-0574-2
16 6
M2421
R
G
FAN ON
AUTO
O B W
Y
HEAT
COOL OFF
M719
Owner's Manual - Page 8
...
Fig. 2-Inserting clock batteries.
69-0574-2
8
Inserting Clock Batteries
Power is interrupted when using 24 Vac powering method. Once a year or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer® batteries. BATTERY LOCATION FOR (2) AAA BATTERIES; Install batteries in...
Owner's Manual - Page 9
.... For 11 AM, the arrow will point directly to dark band. Adjust the clock to light band on dial.
wise
direction. Setting The Clock
Lift thermostat flip-up cover and you'll find
the 24-hour program dial, slotted in
a clockwise
direction 23 hours. Time ends, move the minute hand carefully...
Owner's Manual - Page 10
... at ten-minute intervals. Before setting your program:
Lift thermostat flip-up to six temperature changes with your thermostat to automatically lower and raise the temperature one or more...period.
24-HOUR PROGRAM DIAL (GRAY AREA FOR NIGHT SETTINGS)
FLIP-UP COVER
PROGRAM PINS
THERMOSTAT COVER
PROGRAM PIN SLOT PROGRAM INDEX WHEEL
MANUAL PROGRAM ADVANCE BUTTON
PROGRAM PIN STORAGE
TIME INDICATOR...
Owner's Manual - Page 14
system switch. If blown or tripped, replace fuse or reset breaker.
- pilot flame. Turn On power.
-
furnace power switch. Relight pilot flame per furnace manufacturers instructions.
- Check for assistance.
(continued)
14 R and W thermostat connections.
Repair any frayed or broken wires.
Troubleshooting
Your Honeywell thermostat requires little or no attention. ...
Owner's Manual - Page 15
Troubleshooting (continued)
Problem
Check
Energy savings
- levers.
-
time.
position of thermostat setpoint
are not correct. Move setting knob clockwise only. Reset to desired settings. timer program for correct time
occurs at programmed
May need more time ...
Owner's Manual - Page 16
... .
(continued)
69-0574-2
16 HEATING/COOLING SYSTEM-With system switch at HEAT, move temperature setting levers 5°F (3°C) above room temperature. Heating system should start. thermostat circuits. Heating system should start . If the system does not operate, call a qualified technician. If the system does not operate, call a qualified technician.
Check - COOLING...
Owner's Manual - Page 17
... setting by 0.05. Action
With system switch at COOL, move temperature setting levers 5°F (3°C) below room temperature.
If fuse is blown or breaker tripped, replace or reset.
(continued)
17
69-0574-2 Burner-on page 23 for anticipator location.)
- system switch. Observe burner operation.
No cooling. 1
Check
- anticipator setting. (See figure...
Owner's Manual - Page 18
... or radiant heat. level position of location.
(continued)
69-0574-2
18 Located outdoors and may be about 5 ft (1.5m) above floor on an inside wall. thermostat connections. Use a spirit level.
- Move to cooling system. Repair any frayed or broken wires. Firmly tighten all terminal screws.
- other...
Owner's Manual - Page 19
... for cause and reaction.
(continued)
69-0574-2
Refer to run. 3 Batteries may need replacement
-
if new batteries are installed and clock still does not run .
Replace thermostat. thermostat connections at the two C terminals. Batteries may not have been installed. Remove thermostat from the wallplate or subbase and measure the voltage.
Install as shown on page...
Owner's Manual - Page 20
... power is on page 8. power to clock and equipment
may be off on pins to make sure they are not completely seated in program dial.
Replace filter and reset clock.
(continued)
69-0574-2
20
filter. Troubleshooting (continued)
Problem Clock does not run (continued). Clock loses time. Push down on safety...
Owner's Manual - Page 21
... applicable on page 8. Troubleshooting (continued)
Problem
Clock loses time (continued). Action
Replace with two new AAA alkaline batteries as shown on model used in cooling-only system....not battery powered, clock may need replacement. If this Troubleshooting section has not solved the problem, call your qualified heating service technician or Honeywell Customer Assistance Center, 1-800-468-...
Owner's Manual - Page 22
.... 3. Free or replace limit switch. 4. Replace thermostat.
69-0574-2
22 Voltage At Clock Terminals
AC Voltge at C-C Terminals
0 Vac. Restore power.
2. the clock is burned out.
2.
used to power the clock has
inadequate voltage.
1. Short in clock power supply wiring.
3. Replace transformer.
1. Rebend spring fingers to a 45 degree angle to 30 Vac. Clock has...
Owner's Manual - Page 24
...adjust- If the readings are the same, replace cover
and put the
system into operation. Replace thermostat cover and put the system into operation. Set the thermostat cover on it.
M1810
Fig. 7-Thermometer... slot, shown
in Fig. 7, and turn it has been dropped or mishandled. Remove thermostat cover and open the flip-up cover.
ment if it until both thermometers
read the same...
Owner's Manual - Page 26
If you call, please have questions regarding the installation and programming of furnace, old thermostat and air conditioner.
69-0574-2
26 Before you have the following information available: make and model of your Honeywell thermostat, please contact the Honeywell Customer Assistance Center at 1-800-468-1502, Monday-Friday, 7:00 AM to 5:30 PM, Central time.
Owner's Manual - Page 27
... this limitation may not apply to you.
This warranty shall not apply if it is defective or malfunctions, Honeywell shall repair or replace it , postage
prepaid, to the following address:
Honeywell Inc. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR...
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