32 Specifications subject to change without notice. OM-KSACN0901-02
WIRED CONTROLLER ERROR CODES
Table 1 — Error Codes
*Check the indoor unit’s error display and review the owner’s manual if other error codes appear.
NOTE: The error displayed on the wire controller will differ from the error displayed on the unit. If the error code appears,
check the Owner’s and Installation Manual and Service Manual for the model number of the unit or wired controller the
error is displayed on.
DISPLAY ON IDU AND
WIRED CONTROLLER
ERROR INFORMATION
EH 00/EH 0A Indoor unit EEPROM parameter error
EL 01 Indoor/outdoor unit communication error
EH 02 Zero-crossing signal detection error
EH 03 Indoor fan operating outside of the normal range
EC 51 Outdoor unit EEPROM parameter error
EC 52 T3 is in open circuit or has short circuited
EC 53 T4 is in open circuit or has short circuited
EC 54 TP is in open circuit or has short circuited
EC 56 T2B is in open circuit or has short circuited
EH 60 T1 is in open circuit or has short circuited
EH 61 T2 is in open circuit or has short circuited
EC 07 Outdoor fan operating outside of the normal range
EH 0b Indoor PCB/Display board communication error
EL 0C Refrigerant leakage detection
PC 00 IPM malfunction or IGBT OSCP
PC 01 Over voltage or over low voltage protection
PC 02 Compressor or IPM high temp/pressure protection
PC 04 Inverter compressor drive error
PC 08 Current overload protection
PC 40 Comm. error between outdoor chip and compressor chip
PC 03 Low pressure protection
EH b1 Indoor board and Multi-function communication error
FH 0d Ionizer malfunction
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