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White Rodgers 1F85-277 - User Manual

White Rodgers 1F85-277
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@WHITE-RODGERS
1F85-277
Heating & Air Conditioning
7 Day/5-1-1 Programmable/Non-programmable, Auto
Changeover, Multi-Stage/Heat Pump Thermostat
INSTALLATION INSTRUCTIONS
FAILURE TO READ AND FOLLOWALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURYAND/OR PROPERTY DAMAGE.
YOUR THERMOSTAT REPLACES
Description 1F85-277
Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Standard Heat& Cooling Systems Yes
Two Stage Heat& Two Stage Cool Yes
Standard HeatOnly Systems Yes
Millivolt HeatOnly Systems - Floor or Wall Furnaces Yes
Standard Central Air Conditioning Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat- 2 Wires Yes
Hydronic (Hot Water) Zone Heat- 3 Wires No
PREPARATIONS
Assemble tools required as shown below.
HAND OR POWER
DRILL WITH 3/16 INCH
FLAT BLADE SCREWDRIVER
REMOVING OLD THERMOSTAT
To prevent electrical shock and/or equipment dam-
age, disconnectelectricpower to systemat main fuse
or circuit breaker box until installation is complete.
Before removing wires from old thermostat's switching sub-
base, label each wire with the terminal designation it was
removed from.
1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
2. Remove Old Thermostat: A standard heat/cool
thermostat consists of three basic parts:
a. The cover, which may be either a snap-on or
hinge type.
b. The base, which is removed by loosening all
captive screws.
c. The switching subbase, which is removed by
unscrewing the mounting screws that hold it on
the wall or adaptor plate.
3. Remove the front cover of the old thermostat. With
wires still attached, remove wall plate from the wall. If
the old thermostat has a wall mounting plate, remove the
thermostat and the wall mounting plate as an assembly.
4. Identify each wire attached to the old thermostat.
5. Disconnect the wires from the old thermostat one at a
time. DO NOT LET WIRES FALL BACK INTO THE
WALL.
6. Install new thermostat using the following procedures.
Mounting i
Hole
Mounting
Hole
Elec-Gas
witch
Figure 1 - Thermostat base
ATTENTION! This product does not contain mercury. How-
ever, this product may replace a unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not
touch any spilled mercury. Wearing non-absorbent gloves,
clean up the spilled mercury and place into a container which
can be sealed. If a cell becomes damaged, the unit should be
discarded.
Mercury must not be discarded in household trash. When the
unit this product is replacing is to be discarded, place in a
suitable container and return to White-Rodgers at 2895 Harrison
Street, Batesville, AR 72501 for proper disposal.
EMERSON,
Climat:e Ted mo_ogies
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com
PART NO. 37-6560A
0430

Table of Contents

Other manuals for White Rodgers 1F85-277

Preview: Installation Instructions
Installation Instructions12 pages

Questions and Answers

  • G
    Gary SchneiderAug 12, 2025
    What to do if my White Rodgers 1F85-277 Thermostat has no heat?
    • N
      Nancy Black DVMAug 12, 2025
      If your White Rodgers thermostat isn't producing heat, there are several potential causes: 1. The pilot light may not be lit. If this is the case, relight the pilot. 2. The SYSTEM button might not be set to HEAT. Correct this by pressing the SYSTEM button to HEAT and raising the setpoint above room temperature. 3. There may be a loose connection to the thermostat or system. Ensure that all thermostat and system wires are securely attached. 4. It's possible that the furnace is in a Lock-Out Condition. If the heat works intermittently, you should contact the furnace manufacturer or a local service person for assistance. 5. The heating system may require service, or the thermostat may need replacement. Contact a local service person for assistance.
  • S
    samuel15Aug 16, 2025
    What to do if my White Rodgers 1F85-277 has no cool?
    • A
      Adrienne WillisAug 16, 2025
      If your White Rodgers thermostat isn't cooling, here are a few things to check: 1. Ensure the SYSTEM button is set to COOL. If not, press it to COOL and lower the setpoint below room temperature. 2. Check for loose connections to the thermostat or system. Verify that all wires are securely attached. 3. The cooling system may require service, or the thermostat may need to be replaced. In this case, contact a local service person for assistance.
  • A
    Amber WilkinsonAug 20, 2025
    What to do if my White Rodgers 1F85-277 heat setpoint will not respond to the temperature up key?
    • J
      Julie PetersonAug 20, 2025
      If the heat setpoint on your White Rodgers thermostat does not respond to the temperature up key, it may be conflicting with the COOL mode setpoint. To resolve this, change the system mode to COOL, raise the Cool setpoint, then return to HEAT mode and set your desired temperature.
  • G
    Garrett SantiagoAug 23, 2025
    Why does my White Rodgers 1F85-277 Thermostat setting & thermostat thermometer disagree?
    • Z
      zmartinezAug 23, 2025
      If your White Rodgers Thermostat setting and thermometer disagree, it may be that the thermostat thermometer setting requires adjustment. The thermometer can be adjusted +/- 4 degrees.
  • C
    Cheryl HuntAug 27, 2025
    What to do if my White Rodgers 1F85-277 has a blank display and/or keypad not responding?
    • K
      klinepatriciaAug 27, 2025
      If your White Rodgers thermostat has a blank display and the keypad is not responding, it could be due to a voltage spike or static discharge. Use the Reset Operation at top of previous page.
  • B
    Brittney MartinezAug 31, 2025
    Why does my White Rodgers 1F85-277 Thermostat heat, cool, or fan run constantly?
    • J
      Jason BowenAug 31, 2025
      If your White Rodgers thermostat's heat, cool, or fan runs constantly, consider the following: 1. There might be a short in the wiring. Check each wire connection to ensure they are not shorted or touching. 2. There could be a short in the thermostat itself. Try resetting the thermostat. 3. It's also possible there's a short in the heat/cool/fan system. A system manufacturer or service person can instruct you on how to test the Heat/Cool system for correct operation. 4. The FAN switch may be set to Fan On. If so, switch to Auto mode.
  • M
    Mary HansenSep 4, 2025
    What to do if my White Rodgers 1F85-277 cool setpoint will not respond to the temperature down key?
    • R
      Rebecca MccoySep 4, 2025
      If the cool setpoint on your White Rodgers thermostat doesn't respond to the temperature down key, it's likely that the desired setpoint conflicts with the HEAT mode's setpoint. To fix this, change the system mode to HEAT, lower the Heat setpoint, and then return to COOL mode to set your desired temperature.
  • P
    Patricia GregorySep 7, 2025
    Why does my White Rodgers 1F85-277 furnace (air conditioner) cycles too fast or too slow (narrow or wide temperature swing)?
    • M
      Mark RandallSep 7, 2025
      The cycle rate of your White Rodgers thermostat may be influenced by its location and/or the size of the heating system. If an acceptable cycle rate is not achieved as received or by choosing slow cycle, contact a local service person for additional suggestions.

Summary

PREPARATIONS

REMOVING OLD THERMOSTAT

Instructions for safely removing the existing thermostat from the wall.

ELECTRICAL SAFETY CAUTION

Warning to disconnect power before installation to prevent shock or damage.

MERCURY HANDLING PRECAUTIONS

Guidelines for handling potential mercury spills from replaced units.

MOUNTING AND WIRING

ATTACH THERMOSTAT BASE

WIRING DIAGRAMS

HEAT PUMP WIRING

Diagrams for connecting heat pump systems with single/two transformers.

MULTI-STAGE SYSTEM WIRING

Diagrams for connecting multi-stage heating and cooling systems.

CHECK THERMOSTAT OPERATION

CONFIGURATION MENU

SYSTEM CONFIGURATION TYPE

Selects system type (single-stage, multi-stage, heat pump).

PROGRAMMING OPTIONS

OPERATING MODES & CYCLE SETTINGS

Adjusts EMR, cycle speed, compressor lockout, and auto modes.

DISPLAY & LOCKOUT SETTINGS

PROGRAMMING YOUR THERMOSTAT

ENTERING YOUR PROGRAM

TROUBLESHOOTING AND FAQ

RESET OPERATION

Procedure to reset the thermostat to factory defaults.

FORGOT KEYPAD LOCKOUT CODE

Steps to recover or reset forgotten keypad lockout combinations.

White Rodgers 1F85-277 Specifications

General IconGeneral
BrandWhite Rodgers
Model1F85-277
Display TypeDigital
Temperature Range45°F to 90°F
Voltage24V
DisplayBacklit
MountingHorizontal
Power SourceBattery or Hardwired
Programming7-Day Programmable
CompatibilityGas, Oil, Electric

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