Operating and Installation Manual

19
STATUS DISPLAY
ERROR
LIGHT
SUGGESTED ACTION
FP
Freeze Protection
Engaged. The room temperature
measured by the wireless remote thermostat or indoor
ambient thermistor active sensor falls below 40°F.
YN
No Action required. This setting will disengage
when the room temperature rises above 43°F.
Fd
Front Desk
switch is closed. All outputs are switched off. Y N
Open front desk switch to allow occupant unit
operation.
Fb
Low Remote Battery Warning. N Y Replace Battery in Wireless Devices.
Indoor Ambient Thermistor reads outside the range -20°F
to 200°F
&
the wireless thermostat is not communicating
to the unit control or
Indoor Ambient Thermistor (IAT) without a wireless remote
thermostat reads outside the range -20°F to 200°F.
F4
Indoor Coil Thermistor either above or below operating
tolerances.
N Y Replace Red Indoor Coil Thremistor .
F5
Wireless Thermostat failure. N Y Replace Wireless Thermostat.
F6
Indoor Discharge Thermistor either above or below
operating tolerances.
NY
Replace Yellow Indoor
Discharge Thermistor.
L6
Discharge Air Too Hot.. N Y Clean Filter or Remove Air Blockage.
L8
Air Restriction in Heating. N Y Clean Filter or Evaporator Coil.
L9
Air Restriction in Cooling. N Y Clean Filter or Evaporator Coil.
LC
Outdoor Coil Thermistor temperature high. N Y
Clean Condensor Coils, Check Fan
fault code. Code will reset after cleaning.
C1
Clean Indoor Coil / Filter. N Y Check for Blocked Indoor Air.
C0
Clean Outdoor Coil. N Y Check for Blocked Outdoor Air.
CODE
M
O
D
E
S
A
I
R
F
L
O
W
W
A
R
N
I
N
G
S
Replace black Indoor Ambient Thermistor or
Wireless Remote Thermostat.
YY
F
A
I
L
U
R
E
S
F1
Diagnostic Codes