96
433 Error when assigning dy-
namic addresses
1. Power stage set could not
communicate with Recerbo
1. Restart inverter or perform
software update
2. Faulty power stage set 2. Replace AC PC board
3. Faulty Recerbo 3. Replace Recerbo
436 Error during power stage
set error communication
1. Power stage set could not
communicate with Recerbo
1. Restart inverter or perform
software update
2. Faulty power stage set 2. Replace AC PC board
3. Faulty Recerbo 3. Replace Recerbo
437 Internal error handling
problem
1. Power stage set could not
communicate with Recerbo
1. Restart inverter or perform
software update
2. Faulty power stage set 2. Replace AC PC board
3. Faulty Recerbo 3. Replace Recerbo
438 Error communication prob-
lem
1. Power stage set could not
communicate with Recerbo
1. Restart inverter or perform
software update
2. Faulty power stage set 2. Replace AC PC board
3. Faulty Recerbo 3. Replace Recerbo
445 Country setup information
incorrect
1. Country setup information
incorrect
1. Perform software update
and reload the country setup
from the Setup menu
2. Outdated software (e.g. after
PC board replacement)
2. Perform software update
and reload the country setup
from the Setup menu
3. Manual adjustment not pos-
sible in Service menu
3. Check the settings
4. Faulty Recerbo 4. Replace Recerbo
447 Insulation fault detected 1. PV generator grounded 1. Check wiring
2. Grounding fault on PV gen-
erator
2. Check country setup
3. Measurement fault on power
stage set
3. Replace DC PC board; re-
place AC PC board if neces-
sary
448 Neutral conductor fault 1. No neutral conductor found 1. Check wiring
2. Incorrect setup 2. Check country setup
3. Poor contact: wall bracket <-
-> inverter
3. Check fixing screws in the
DATCOM area
4. Faulty filter PC board 4. Replace filter PC board
450 No guard controller detect-
ed
1. Ribbon cable between pow-
er stage set and filter PC board
faulty or not connected proper-
ly
1. Check ribbon cable between
Recerbo and power stage set
2. Faulty filter PC board 2. Replace filter PC board
451 Memory error in a micro-
controller
1. Grid problem 1. Automatic correction
2. Faulty AC guard on filter PC
board
2. Replace filter PC board
3. Faulty AC guard on power
stage set
3. Replace AC PC board
Code Description Behaviour Remedy