Low bus voltage fault
High bus voltage fault
Phase current sample bias error
Motor and IDU are unmatched
IPM and IDU are unmatched
Motor startup failure
Motor blocking protection
Speed control mode setting error
Phase lack protection of motor
Operating Status Codes and Definitions (Non-Error)
Oil return or preheating operation
Self-cleaning
Mode conflict (V8 communication protocol adopted)
Defrosting
Static pressure detection
Remote shutdown
IDU backup operation
ODU backup operation
Main control program upgrading
[ Caution ]
Error codes are displayed only for certain ODU models and IDU configurations (including the wired controller and
display panel).
When the main control program is being upgraded, make sure that the IDU and ODU remain powered on. Otherwise,
the upgrading process will stop.
Error
Definition
59
Installation
Error code
Digital display
J3E
J31
J43
J45
J47
J5E
J52
J55
J6E
Code
Digital display
d0
dC
dd
dF
d51
d61
d71
d72
OTA