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GE RARMC Series - User Manual

GE RARMC Series
54 pages
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Important Safety Information .................3
Installation Instructions
........................... 4
Controls
.......................................................... 8
Controls and Operating Functions
..... 9
On Board Diagnostics
.............................. 11
Fault Codes
................................................. 12
Wiring Diagram
......................................... 13
Testing the Thermostat
..........................14
Troubleshooting
........................................ 16
Limited Warranty
...................................... 17
Consumer Support
................................... 18
49-5000400 Rev. 5
05-21 GEA
THERMOSTAT
OWNER’S MANUAL
& INSTALLATION
INSTRUCTIONS
RARWT_ _ (Single Zone Smart T.Stat)
RARMC_ _ (Standard Ceiling Control)
RAREC3A (Standard Ceiling Control)
RAREC2A (Direct Wire or Smart T.Stat)
RAREC1A (RV-C or Smart T.Stat Control)
Write the model and serial numbers
here:
Model #
____________________
Serial # ____________________
You can find them on a label on the
thermostat.
GE is a trademark of the General Electric Company.
Manufactured under trademark license.
Single Zone RV

Questions and Answers

  • C
    Cindy AndersonSep 8, 2025
    Why compressor does not turn on immediately on GE RARMC Thermostat?
    • G
      Gina RobertsSep 8, 2025
      This is normal behavior. The GE Thermostat has a built-in 3-minute OFF timer to prevent the compressor from being turned off and immediately back on.
  • L
    laurenhernandezAug 23, 2025
    Why does my GE RARMC Thermostat fan run continuously?
    • R
      Robert MurphyAug 23, 2025
      If the fan on your GE Thermostat runs continuously, check the fan setting. If the fan setting is set to 'ON', the fan will run continuously.
  • M
    maria91Aug 25, 2025
    Why does my GE RARMC fan not turn on immediately?
    • T
      Terri SanchezAug 25, 2025
      If the fan on your GE Thermostat does not start immediately, this is normal. Some models have a minimum run time or time delay for the fan.
  • B
    Billy ThomasAug 27, 2025
    What to do if all GE RARMC buttons are inoperative?
    • D
      Daniel RobertsAug 27, 2025
      If all the buttons on your GE Thermostat are inoperative, check that 12 VDC is present. The unit will not operate if 12 VDC is not present.
  • D
    Deborah Hill MDAug 27, 2025
    What to do if my GE RARMC Thermostat fan runs continuously?
    • N
      nhallAug 27, 2025
      Check the Fan Mode setting on your GE Thermostat. If it is set to FAN ON, the fan is designed to run continuously.
  • S
    sbondSep 22, 2025
    What to do if room temperature does not match setpoint on GE RARMC Thermostat?
    • D
      Diana MeyerSep 22, 2025
      Verify proper installation. Ensure the thermostat is not on an exterior wall, in direct sunlight, or in an area affected by a vent or duct.
  • G
    Gregory StewartSep 16, 2025
    Why fan does not turn on immediately on GE Thermostat?
    • J
      Joseph MasonSep 16, 2025
      In Heat-Pump mode, if Auto Fan is selected, the fan will not turn ON until the compressor turns ON after the 3 minute OFF timer.
  • V
    Valerie GreenSep 18, 2025
    What to do if the fan does not turn on, but the compressor does on GE RARMC Thermostat?
    • S
      Shannon GibbsSep 18, 2025
      With power removed, check that nothing is obstructing the fan blade and that it spins freely. Also, check the 5 amp Fuse on the board.
  • M
    Melanie FordSep 7, 2025
    Why room temperature does not match setpoint on GE RARMC?
    • C
      Christopher MartinSep 7, 2025
      Verify proper installation of the thermostat, ensuring it's not on an exterior wall, in direct sunlight, or in an area affected by a vent or duct.
  • M
    Matthew DuncanSep 4, 2025
    Why does GE RARMC fan not turn on immediately?
    • P
      Peter YoungSep 4, 2025
      In Heat-Pump mode, if Auto Fan is selected, the fan will not turn on until the compressor turns on after the 3-minute OFF timer.

Summary

IMPORTANT SAFETY INFORMATION

Specifications

Electrical rating, operating ranges, wire sizes, and communication connections for the thermostat.

Installation Instructions

To Install Thermostat and Main Control

Instructions for mounting the thermostat and main control box, and connecting wiring.

Controls (RARWT__)

Controls and Operating Functions (RARWT__)

On Board Diagnostics (RARWT__)

Low Voltage Detection

Explains how the thermostat behaves when voltage drops below 10.5V.

A;C Freeze-Up Prevention

Indicates a flashing snowflake icon for potential indoor coil freezing.

Heat-Pump Auto-Defrost

Identifies the flashing heat-pump icon during auto-defrost cycles.

Heat-Pump Lockout

Signifies the heat-pump lockout due to low outdoor temperatures.

Fault Codes (RARWT__)

Wiring Diagrams

Testing the Thermostat

Troubleshooting Tips

GE RARMC Series Specifications

General IconGeneral
Stages1 Heat/1 Cool
DisplayBacklit LCD
Hold FunctionYes
Battery BackupNo
Voltage24V

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