Daikin VRV IV+ Service Manual page 131

2.3.117 LC-33-34-35 – Transmission abnormality main PCB/sub PCB
2.3.118 P1-01-02-03 – Open phase or unbalanced power supply detection by inverter PCB A3P
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Main error code
LC
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
No transmission between
main PCB and sub PCB.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the main PCB. See
Possible cause: Faulty main PCB or wrong capacity setting.
2 Perform a check of the Sub PCB. See
Possible cause: Faulty Sub PCB.
3 Check the wiring between the PCB's. See
Possible cause: Faulty wiring between PCB's.
4 Check if the correct spare part is installed for all PCB's. See checking
procedures of the specific PCB's.
Possible cause: Wrong spare part PCB installed.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
P1
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.
Sub error code
33
34
35
Effect
Unit will stop operating.
"3.11 Main
"3.20 Sub
"6.2 Wiring
Sub error code
01
02
03
2 Troubleshooting
|
Unit
Main
Sub 1
Sub 2
Reset
Power reset at outdoor
unit.
4
PCB" [ 290].
4
PCB" [ 342].
4
diagram" [ 385].
Unit
Main
Sub 1
Sub 2
Service manual
131