On Board Diagnostics (RARWT_ _)
a temperature above 135
was shut off.
Recommended to increase airflow by cleaning the filter
and opening vents.
Fault Codes (RARWT_ _)
Display
Code
F1
All
Models
F2
F3
Heat
Pump
F4
Models
F5
Dip
Switch 1
F6
ON
F7
F8
All
Models
F9
--
FC
12
Heat-Pump Over Temperature:
In HEAT-PUMP modes, a flashing
HEAT-PUMP icon AND 99
indicates that the indoor coil reached
F (58
°
Fault Codes
Sensor
Indoor Coil
Unplugged Sensor or Temp less
than -22°F (-30°C)
Indoor Coil
Shorted wires or temp greater
than 149°F (65°C)
Outdoor Coil
Unplugged Sensor or Temp less
than -22°F (-30°C)
Outdoor Coil
Shorted wires or temp greater
than 149°F (65°C)
Outdoor Temp Unplugged sensor, or Dip Switch
1 set to "ON" for AC only model.
Temp less than -22°F (-30°C)
Outdoor Temp Shorted wires or temp greater
than 149°F (65°C)
Thermostat
Unplugged Sensor or Temp less
Room Sensor
than -22°F (-30°C)
Thermostat
Shorted wires or temp greater
Room Sensor
than 149°F (65°C)
Signal Wire
Thermostat signal wire is
unplugged or shorted (Not
communicating to the main
control)
°
C) and the compressor
°
Potential Cause
F (99
C)
°
49-5000400 Rev. 4