Error codes help you know when your AC system needs to be repaired or isn’t working as intended. Each error code has a meaning to help you understand the problem and what needs to be done to fix it.
Error Codes
E01: No communication between remote controller and indoor unit.
E02: Local controller failure – unable to transmit
E03: Master indoor unit receives no data to A-B
E04: Indoor unit (except twin slave) receives no communications from outdoor unit; can also include klixon on discharge pipe of outdoor unit
E08: Duplicated indoor unit address
E09: 2 local controllers connected on a group – both configured as masters
E10: Indoor unit PSB failure
E18: Communications failure between master indoor unit and slave indoor unit or units
F01: Indoor unit TCJ (Liquid) sensor error (Open or Closed circuit – resistance is measured in kW
F02: Indoor unit TC2 (Vapour) sensor error (Open or Closed circuit – resistance is measured in k
F04: Outdoor unit TD (Discharge) sensor error (Open or Closed circuit – resistance is measured in kW
F06: Outdoor unit TE (Coil) sensor error (Open or Closed circuit – resistance is measured in k
F08: Outdoor unit TO (Ambient) sensor error (Open or Closed circuit – resistance is measured in kW
F10: Indoor unit TA (Return Air) sensor error) Open or Closed circuit – resistance is measure in kW
F29: Indoor unit PCB failure
H01: Outdoor unit inverter compressor over current detected
H02: Master outdoor unit over current detected shortly after start up
H03: Current detected on Master outdoor unit whilst idle
H06: Outdoor unit Low pressure detected by Ps sensor (0.2 bar -n 2.9 psig)
L03: Indoor unit Duplicated master indoor units in a group
L07: Indoor unit in a group of units previously addressed as a single unit – check addressing
L08: Indoor units addresses not set – check addressing
L09: Indoor units capacity not set (check DN Code 11)
L29: Outdoor unit IPDU error (Number of detected IPDU units is reduced)
L30: Input on indoor PCB CN80 circuit for 1 minute
L31: Outdoor unit PCB error
P01: Indoor unit fan motor error
P03: Outdoor unit High discharge temperature (TD1 exceeded 115°C)
P04: Outdoor unit high-pressure switch activated (Detected by high temperature on TE sensor on digital/super digital inverter units)
P07: Outdoor unit PCB heat sink overheated (Temperature over 90°C recorded)
P10: Indoor unit Float switch activated
P12: Indoor unit fan motor error – detected by feedback circuit
P19: Wrong change in temperature recorded (4 way valve error)
P22: Outdoor unit fan motor IPDU error
P26: Outdoor unit Giant transistor short circuit
P29: Outdoor unit Compressor error detected by feedback circuit
P30: Indoor unit Group control follower unit error / duplicated central control addresses
P31: Indoor unit PCB error
C05: Central control Sending error in TCC-Link central control device
C06: Central control Receive error in TCC-Link central control device
C12: Batch alarm for general purpose equipment interface
Digital/Super digital “0-1-2-3” series data
Indoor Data
00: Room Temp. (Remote Controller) (°C)
01: Room Temp. (Remote Controller) (°C)
02: TA Return Air Temp. (°C)
03: TC Coil – Vapour Temp. (°C)
04: TCJ Coil – Liquid Temp. (°C)
Outdoor Data
60: TE Sub-cooled Liquid Temp (°C)
61: TO Ambient Temp. (°C)
62: TD Discharge Temp. (°C)
63: TS Suction Temp. (°C)
65: THS – Inverter Heat Sink Temp. (°C)
Digital/Super digital “4” series – Indoor Data
00: Room Temp (Control Temp) (°C)
01: Room Temp. (Remote Controller) (°C)
02: TA Return Air Temp. (°C)
03: TC Coil – Vapour Temp. (°C)
04: TCJ Coil – Liquid Temp. (°C)
07: Fan Speed (rpm)
F2: Fan Run Time (x 100h)
F3: Filter Duration Timer (x 1h)
F8: Discharge Temp. (Indoor – If fitted) (°C)
60: TE Sub-cooled Liquid Temp. (°C)
61: TO Ambient Temp. (°C)
62: TD Discharge Temp. (°C)
63: TS Suction Temp. (°C)
65: THS – Inverter Heat Sink Temp. (°C)
6A: Operation Current (A)
70: Compressor Frequency (Hz)
72: Fan Speed (Lower) – (rpm)
73: Fan Speed (Upper) – (rpm)
F1: Compressor Run Time (x 100h)
VRF Indoor data for Mini SMMS / SMMS / SMMSI & SHRM equipment
00: Room Temp (Control Temp) (°C)
01: Room Temp. (Remote Controller) (°C)
02: TA Return Air Temp (°C)
03: TCJ Coil – Liquid Temp. (°C)
04: TC2 Coil – PMV Pipe Temp. (°C)
05: TC1 Coil – Vapour Temp (°C)
06: Indoor Discharge Temp (If Used) – (°C)
08: PMV Position (0 – 10)
0A: Number of Connected Indoor Units (No.)
0b: Indoor Capacity (x 10 = HP)
0C: Number of Outdoor Units (No.)
0d: Outdoor Capacity (x 10 = HP)
VRF Outdoor data for Mini SMMS / SMMS & SHRM equipment
*0: Td1 – Compressor 1 Discharge Temp. (°C)
*1: Td2 – Compressor 2 Discharge Temp. (°C)
*2: Pd – High Pressure Sensor (Mpa)
*3: Ps – Low Pressure Sensor (Mpa)
*4: TS – Suction Temp. (°C)
*5: TE – Outdoor Heat Exchanger Temp. (°C)
*6: TL – Liquid Temp. (°C)
*8: TU – Low Pressure Saturated Temp. (°C)
*9: Compressor 1 Current (A)
*A: Compressor 2 Current (A)
*b: PMV1 + 2 Opening (0 – 100)
*d: Compressor 1, 2 ON/OFF
*E: Outdoor Fan Mode (0 – 31)
*F: Outdoor Unit Size (HP)
Note. *Would be replaced with 1, 2, 3 or 4 to obtain data from respective outdoor unit.
VRF Outdoor data for SMMSI equipment
*0: Pd – High Pressure Sensor (MPa)
*1: Ps – Low Pressure Sensor (MPa)
*2: Td1 – Compressor 1 Discharge Temp. (°C)
*3: Td2 – Compressor 2 Discharge Temp. (°C)
*4: Td3 – Compressor 3 Discharge Temp. (°C)
*5: TS – Suction Temp. (°C)
*6: TE1 – Outdoor Coil Temp. (°C)
*7: TE2 – Outdoor Coil Temp. (°C)
*8: TL – Liquid Temp. (°C)
*9: TO – Outdoor Ambient Temp. (°C)
*A: PMV 1+2 Opening
*B: PMV 4 Opening
*C: Compressor 1 Current (A)
*D: Compressor 2 Current (A)
*E: Compressor 3 Current (A)
*F: Outdoor Fan Current
#0: Compressor 1 Revolutions (rps)
#1: Compressor 2 Revolutions (rps)
#2: Compressor 3 Revolutions (rps)
#3: Outdoor Fan Mode
#4: Compressor IPDU 1 Heat Sink Temp. (°C)
#5: Compressor IPDU 2 Heat Sink Temp. (°C)
#6: Compressor IPDU 3 Heat Sink Temp. (°C)
#7: Outdoor Fan IPDU Heat Sink Temp. (°C)
#8: Heating/Cooling Recovery Controlled
#9: Pressure release
#A: Discharge Temp. Release
#B: Follower Unit Release
#F: Outdoor Unit Size (HP)
Note: *Would be replaced with 1, 2, 3 or 4 to obtain data from respective outdoor unit.
# would be replaced with 5, 6, 7, 8 to obtain data from outdoor units 1, 2, 3 or 4