Code Description; Class 3 Status Codes - Fronius Primo 3.8-1 208-240 Instructions De Service

Code Description
240 Arc detected
241 Arc detected
242 Arc detected
245 Arc detector self test failed
Arc detector current sensor de-
247
fective
249 Arc detector defective
Class 3 Status Class 3 includes status codes that may appear during grid power feed operation and do
Codes not cause permanent interruption of the grid power feed operation.
After automatic disconnection from the grid and waiting for its conditions to return to those
stipulated, your inverter will try to resume grid power feed operation.
Code Description
301 Over-current (AC)
302 Over-current (DC)
Power stage set over tempera-
303
ture
304 Interior temperature too high
42
Details
The status code is displayed
for approx. 4 seconds.
The status code 241 is dis-
played directly after 240; the
inverter disconnects from the
grid for safety reasons.
Status code 242 is displayed
after resetting status code 241.
The inverter disconnects from
the grid.
The inverter disconnects from
the grid.
Details
Brief interruption of grid power
feed operation due to overcur-
rent in the inverter.
The inverter returns to the
startup phase.
Brief interruption of grid power
feed operation due to over
temperature.
The inverter returns to the
startup phase.
Rectification
-
If an arc has been detected,
check the entire affected PV
system for damage before re-
setting the inverter.
Reset status code by pressing
the "Enter" key.
Reset the status code by
pressing the "Enter" key.
The inverter resumes grid
power feed operation.
If the status code keeps recur-
ring, contact your system in-
staller.
Reset AC.
The test is repeated.
If the status code persists:
contact a Fronius-trained ser-
vice technician.
If status code persists: contact
a Fronius-trained service tech-
nician.
Rectification
Error is automatically rectified;
if status code persists: contact
a Fronius-trained service tech-
nician.
If required, clean cool air vents
and cooling elements with
compressed air.
The fault is rectified automati-
cally.
If this status code keeps recur-
ring, contact your system in-
staller.