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5284792-UIM-A-0317
TABLE 7: Outdoor Control Faults/Status Code Display
Outdoor Control Description
Suction temperature sensor failure (open)
Discharge pressure sensor failure (low volt-
age) not in lockout yet
Discharge pressure sensor failure (low volt-
age)
Discharge pressure sensor failure
(high voltage) not in lockout yet
Discharge pressure sensor failure (high volt-
age)
Suction pressure sensor failure (low voltage)
Suction pressure sensor failure (high voltage)
Discharge Temp Faults
High discharge temperature (not in lockout yet)
High discharge temperature
High discharge temperature
Suction Pressure Faults
Low suction pressure (not in lockout yet)
Low suction pressure
Low suction pressure
Wiring Related Faults
W and O signal received in HP mode
Inverter Drive Faults
Multiple Inverter Faults
Control Events
O signal received in AC mode
W and O signal received in AC mode
Demand Response
Factory Run Test
Conventional Y1 signal receive in HP mode
Conventional Y1 and O signals receive in HP
mode
Conventional Y1 signal receive in AC mode
Pipe Freeze Timer expiration
Low Suction Pressure
Low Voltage (<22.2VAC)
Superheat Events
High Superheat
Low Superheat
1. Refer to Figure 10 for Outdoor Control LED location.
14
1
Outdoor Display Text
LED
RED
SUCTION TEMP SENSOR –
(solid)
OPEN – SOFT LOCKOUT
RED
DISCHARGE PRESSURE SENSOR -
(solid)
RED
DISCHARGE PRESSURE SENSOR -
(solid)
LOW VOLTAGE – SOFT LOCKOUT
RED
DISCHARGE PRESSURE SENSOR -
(solid)
RED
DISCHARGE PRESSURE SENSOR -
(solid)
HIGH VOLTAGE – SOFT LOCKOUT
RED
SUCTION PRESSURE SENSOR -
(solid)
LOW VOLTAGE – SOFT LOCKOUT
RED
SUCTION PRESSURE SENSOR -
(solid)
HIGH VOLTAGE – SOFT LOCKOUT
RED
HIGH DISCHARGE TEMP
(solid)
RED
HIGH DISCHARGE TEMP -
(solid)
RED
HIGH DISCHARGE TEMP -
(solid)
HARD LOCKOUT
RED
LOW SUCTION PRESSURE
(solid)
RED
LOW SUCTION PRESSURE -
(solid)
RED
LOW SUCTION PRESSURE -
(solid)
HARD LOCKOUT
RED
W / O INPUTS - HP MODE –
(solid)
RED
MULTIPLE INVERTER FAULTS –
(solid)
Yellow
O INPUT - AC MODE
(solid)
Yellow
W / O INPUTS - AC MODE
(solid)
Yellow
DEMAND RESPONSE (ACTIVE)
(per. section 15.2)
Yellow
FACTORY RUN TEST (ACTIVE)
(solid)
Yellow
REPAIR MODE HEAT – HP (ACTIVE)
(per. section 15.2)
Yellow
REPAIR MODE COOL– HP (ACTIVE)
(per. section 15.2)
Yellow
REPAIR MODE COOL – AC (ACTIVE)
(per. section 15.2)
Yellow
PIPE FREEZE TIMER - ACTIVE
(solid)
Yellow
LOW SUCTION PRESSURE
(solid)
Yellow
LOW VOLTAGE – BELOW 22VAC
(solid)
Yellow
HIGH SUPERHEAT
(solid)
Yellow
LOW SUPERHEAT
(solid)
(Outdoor Screen)
LOW VOLTAGE
HIGH VOLTAGE
SOFT LOCKOUT
SOFT LOCKOUT
SOFT LOCKOUT
SOFT LOCKOUT
Johnson Controls Unitary Products
Left Triangle
Right Triangle
Indication
Indication
(Outdoor Screen)
X
–
–
X
–
X
–
X
–
X
X
–
X
–
–
X
–
X
–
X
X
–
X
–
X
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
X
–
–
–
X
–
X
–
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