Other; Error Messages - LG LGES-5048 User Manual

04 OTHER

4.1 Error Messages.

The error messages below will be displayed on LGES PV Master App or reported by e-mail if an error
occurs.
ERROR EXPLANATION
MESSAGE
Utility Loss Public grid power
is not available
(power lost or
on-grid connection
fails)
VAC Failure Grid voltage is not
within permissible
range
FAC Failure Grid frequency
is not within
permissible range
Over Temperature inside
Temperature of the inverter is
too high
REASON
Inverter does 1. Check (use multi-meter) if AC side
not detect the has voltage . Make sure grid power is
connection of grid available.
2. Make sure AC cables are connected
tightly and well.
3. If all is well, please try to turn off AC
breaker and turn on again in 5 mins.
Inverter detects 1. Make sure safety country of the
that AC voltage is inverter is set right.
beyond the normal 2. Check (use multi-meter) if the AC
range required by voltage (Between L & N) is within a
the safety country normal range (also on AC breaker side)
a. If the AC voltage is high, then make
sure the AC cable complies with that
required on user manual and the AC
cable is not too long.
b. If the voltage is low, make sure
the AC cable is connected well and
the jacket of the AC cable is not
compressed into the AC terminal.
3. Make sure the grid voltage of your
area is stable and within normal range.
Inverter detects 1. Make sure the safety country of the
that the grid inverter is set right.
frequency is 2. If safety country is right, then please
beyond the normal check on the inverter display if AC
range required by frequency (Fac) is within a normal
the safety country range.
3. If FAC failure only appears a few
times and is resolved soon, it should
be caused by occasional grid frequency
unstability.
The inverter's 1. Try to decrease surrounding
working temperature.
environment 2. Make sure the installation complies
leads to a high with the instruction on inverter user
temperature manual.
condition 3. Turn off the inverter.
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SOLUTIONS