Redback SI5000 - Troubleshooting; Most Frequent Symptoms

Redback Technologies
Owner’s Guide – Redback Smart Inverter - v1.4 15
Troubleshooting
Most frequent symptoms
SYMPTOM
PROBABLE CAUSE
SOLUTION
No LEDs are illuminated
Local blackout
Contact your energy supplier for help.
No Grid Power to
inverter
Near inverter, turn INVERTER AC isolator ON.
At main switchboard, turn SOLAR SUPPLY MAIN Switch ON.
No Solar Generation
At the inverter, turn the PV ARRAY DC isolator ON.
No solar generation
No Grid Power
As above.
PV turned is OFF
At the inverter, turn the PV ARRAY DC isolator ON.
Insufficient sunlight
Wait for daytime weather to improve.
Lower solar generation
than expected
PV Shading
Observe your panels throughout the day, and at different times of
the year to see if shading is occurring. Over time, your panels may
become partly shaded due to nearby trees or buildings.
Dirty PV Panels
Arrange for your PV Panels to be inspected and cleaned
Inverter overheating
On the Redback portal charts,
check Inverter-Temperature.
Output is reduced if internal
temperature exceeds 45
°
C.
Follow the suggestions below.
Inverter overheating
Note: your inverter is
passively cooled and relies on
a temperature difference
between the inverter casing
and ambient air. Air flow
obstructions, or anything that
reduces the temperature
differential also reduces the
inverter’s self-cooling
efficiency.
Insufficient cooling
Is there 200mm clear space on
all sides of the inverter?
Ensure 200mm on all sides of
the inverter is free of
obstructions.
Are the cooling fins at the back
of the unit obstructed by dust,
insects, or other debris?
Clean the fins using a suitable
brush e.g., a Bottle Brush.
Very hot day
Wait for the temperature to
drop.
If in full or part sun, shading the
inverter may help. Contact your
installer for advice.
Ambient temperature
is high
Is the inverter affected by
nearby A/C outdoor units or
other heat sources?
Contact your installer to discuss
options.
Is the inverter in a closed room
or shed?
Ventilate or cool the room to
reduce ambient temperature.
External heat load is
excessive
Is the inverter in a full sun
location, or are there other heat
sources e.g., reflected heat, or
mounted on a metal wall?
Reduce the external heat load.
Contact your installer to discuss
options
Inverter operating
abnormally
Unknown
Shutdown inverter as described in section 9.1.
Wait 10 minutes then restart the inverter as in section 9.2
Contact your installer if inverter still does not operate correctly.
Red Inverter Status LED
Error state exists
Contact your installer.
Purple Flashing EMS
Network LED
Error state exists
Contact your installer.