Fisher FSOI-180B Operating And Installation Instruction Manual page 12

Mismatch of indoor unit model
AC current protection (input side)
Driver board environment temperature
sensor malfunction
AC input voltage abnormality *
Electrification loop malfunction *
Note:
1、 No indicator LED6 for FSOI-180B.
LP Bright Blink
PA Bright Blink
PF Bright Blink
PP
PU
11
Dark Blink Bright
Bright Blink Bright
Bright Blink Dark
Blink None
Dark E5
Bright E5
E5
E5