Actron air fault codes

Actron air ESP Unit Error Fault Codes

Outdoor CPUWall ControllerFault/Function
0-Cooling Mode
1-Heating Mode
2-Heating compressor run time >20mins
3-Heating Defrost
4LOW speed flashes
every 30s
Over Heat or Anti-Freeze Protection mode (Reduced Capacity
Mode)
5-Heating mode – indoor coil pre-heat
6E6Fault discharge temperature
7E7Fault outdoor coil sensor (open or closed circuit)
8E8Fault outdoor discharge sensor (open or closed circuit)
9E9High or Low Pressure/Phase error (3 phase models only)*
-E2Fault indoor coil out sensor
-E3Fault room sensor(s) (open or closed circuit)
-E4Fault indoor coil sensor (open or closed circuit)
E5Communication Fault

Actron air M Series (AM24 and AM7) Controller Error Fault Codes


OUTDOOR
CPU
AM24 Wall
Control
AM7 Wall
Control
Fault/Function
0--Cooling Mode
1--Heating Mode
2--Heating Mode after 20 minutes of compressor run time. Defrost
Standby.
3--Heating Mode De-ice cycle
5--Heating Mode Indoor coil pre-heat after defrost
7 E7 E7Fault: Outdoor coil sensor (open circuit)
8 E7 E7Fault: Outdoor coil sensor (closed circuit)
9E9E9Fault: High or Low pressure tripped (Note: Some models have
discharge sensor, which will also
give the same fault code.)
E5E5Communication error between outdoor and indoor.

Actron air Fault Codes C Series (C7-1) Controller


OUTDOOR
CPU
C7 Wall
Control
Fault/Function
0-Cooling Mode
1-Heating Mode
2-Heating Mode after 20 minutes of compressor run time. Defrost Standby.
3- Heating Mode De-ice cycle
5- Heating Mode Indoor coil pre-heat after defrost
7E7Fault: Outdoor coil sensor open circuit
8E7Fault: Outdoor coil sensor short circuit
9E9Fault: High or Low pressure tripped (Note: Some models have discharge
sensor, which will also give the same fault code.)
-E5Communication error between outdoor and indoor

Actron air D Series 24 Hour (AECSN) and 7 Day (AEC7N) Controller Error Fault Codes

OUTDOOR
CPU
24 Hour
(AECSN) Wall
Control
7 Day
(AEC7N) Wall
Control
Fault/Function
0--Cooling Mode
1--Heating Mode
2--Heating Mode after 20 minutes of compressor run time. Defrost
Standby.
3--Heating Mode De-ice cycle
5--Heating Mode Indoor coil pre-heat after defrost
77E1Fault: Outdoor coil sensor open circuit
87E1Fault: Outdoor coil sensor closed circuit
9heat/cool
flash)
E2Fault: High or Low pressure tripped (Note: Some models have
discharge sensor, which will also
give the same fault code.)
--E5Communication error between outdoor and indoor.

Notes:
– Faults may not be displayed on the wall control until the fault occurs several times.
– Phase error will be indicated by a red light on the 3-phase relay.
– Phase correction must be applied to the incoming supply side.