Red
Motor High
Flash Code 1
Temperature
Red
Open/Shorted
Motor Thermistor
Flash Code 2
Red
Short Cycling
Flash Code 3
Red
Scroll High
Flash Code 4
Temperature
Red
Future Use
Flash Code 5
Red
Missing Phase
Flash Code 6
Red
Reverse Phase
Flash Code 7
Red
Future Use
Flash Code 8
Red
Module Low
Flash Code 9
Voltage
1
This Alert does not result in a Lockout
© 2016 Emerson Climate Technologies, Inc.
Table 6 Continued
Alert/Lockout LED Flash
Ω > 4.5K ± 25%;
Lockout after 5 Alerts
Ω > 220K or Ω < 40;
Lockout after 6 hours
Run time of less than 3
minutes; Lockout if the
number of Alerts exceeds
the number configured by
the user in 24 hours
Ω < 2.4K; Lockout if the
number of Alerts exceeds
the number configured by
the user in 24 hours
N/A
Missing phase; Lockout
after 10 consecutive Alerts
Reverse phase; Lockout
after 1 Alert
N/A
Low voltage on T2-T1
terminals
1
15
1) Check supply voltage
Ω < 2.75K and 30
2) Check system charge &
minutes
superheat
3) Check contactor
1) Check for poor connections
40 < Ω < 2.75K and
at module and thermistor
30 minutes
fusite 2) Check continuity of
thermistor wiring harness
1) Check system charge and
pressure control setting
Interrupt power to
T2-T1 or perform
2) Adjust set-point of
Modbus reset
temperature controller
command
3) Install anti-short cycling
control
1) Check system charge and
superheat
Interrupt power to
T2-T1 or perform
2) Check system operating
Modbus reset
conditions
command
3) Check for abnormally low
suction pressure
N/A
N/A
After 5 minutes
1) Check incoming power
and missing phase
2) Check fuses/breakers
condition is not
3) Check contactor
present
1) Check incoming phase
Interrupt power to
sequence
T2-T1 or perform
2) Check contactor
Modbus reset
command
3) Check module phasing wires
A-B-C
N/A
N/A
1) Verify correct module p/n 2)
After 5 minutes and
Check VA rating of transformer
the voltage is back in
3) Check for blown fuse in
the normal range
transformer secondary
AE8-1384 R5