Daikin RZQ100B8V3B Service Manual page 234

Error Codes: Outdoor Units
3.18 Malfunction of Transmission system (Between Control PCB and Inverter PCB)
1
(LC)
Remote Controller
Display
Method of
Malfunction
Detection
Malfunction
3 3
Decision
Conditions
Supposed Causes
4
5
3–86
LC
Checks and sees whether transmission between control and inverter PC board is carried out normally.
When the transmission is not carried out in a specified period of time or longer
Incorrect transmission wiring between control and inverter PC board/insufficient contact in wiring
Faulty control and inverter PC board
External factors (noise, etc.)
ESIE05-03
Part 3 – Troubleshooting