IOM BACNET GATEWAY

67
Error code
1
Content
xL2 DC bus high voltage protection
xL4 MCE error
xL5 Zero speed protection
xL7 Phase sequence error
xL8 Compressor frequency variation greater than 15Hz within one second protection
xL9 Actual compressor frequency differs from target frequency by more than 15Hz protection
Notes:
1. 'x' is a placeholder for the compressor system (compressor and related electrical components), with 1
representing compressor system A and 2 representing compressor system B. 'y' is a placeholder for the
address (1 or 2) of the slave unit with the error.
2. For some error codes, a manual restart is required before the system can resume operation.
3. Once the EXV has been connected properly, the error code will flash to indicate that the connection has
been re-established. A manual restart is then required before the system can resume operation.
Table of Error Codes for Indoor Units
Error code Content
E0 Mode conflict
E1 Communication error between indoor and outdoor units
E2 Indoor ambient temperature sensor error
E3 Indoor heat exchanger mid-point temperature sensor error
E4 Indoor heat exchanger outlet temperature sensor error
E6 Fan error
E7 EEPROM mismatch
Ed Outdoor unit error
EE Water level error
FE Indoor unit has not been assigned an address