Daikin VRV IV+ Service Manual page 108

2 | Troubleshooting
2.3.93 L1-29-33-35 – Fan inverter PCB A7P Eeprom error
Service manual
108
Trigger
Fan inverter PCB A4P fails
reading/writing memory
(EEPROM error).
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the fan inverter PCB A4P. See
4
PCB" [ 259].
Possible cause: Faulty fan inverter PCB A4P.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
L1
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple outdoor unit
configurations. Main outdoor unit is the unit to which F1‑F2 IN transmission line is
connected. Main, Sub 1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Trigger
Fan inverter PCB A7P fails
reading/writing memory
(EEPROM error).
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the fan inverter PCB A7P. See
4
PCB" [ 259].
Possible cause: Faulty fan inverter PCB A7P.
Effect
Unit will stop operating.
Sub error code
29
33
35
Effect
Unit will stop operating.
Reset
Manual reset via user
interface.
Power reset at outdoor
unit.
"3.8 Fan inverter
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Power reset at outdoor
unit.
"3.8 Fan inverter
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05