Troubleshooting - MPP Solar 2424LV-HS User Manual

TROUBLESHOOTING

Problem
Unit shuts down LCD/LEDs and buzzer
automatically will be active for 3
during startup seconds and then
process. completely off.
No response after
No indication.
power on.
Input voltage is
displayed as 0 on the
LCD and green LED is
flashing.
Mains exist but the
unit works in
battery mode. Green LED is flashing.
Green LED is flashing.
When the unit is
turned on, internal LCD display and LEDs
relay is switched on are flashing
and off repeatedly.
Fault code 07
Fault code 05
Fault code 02
Fault code 03
Buzzer beeps
continuously and
red LED is on.
Fault code 01
Fault code 06/58
Fault code
08/09/53/57
Fault code 51
Fault code 52
Fault code 55
Fault code 56
LCD/LED/Buzzer
The battery voltage is too low
(<1.91V/Cell)
1. The battery voltage is far too
low. (<1.4V/Cell)
2. Battery polarity is connected
reversely.
Input protector is tripped
Insufficient quality of AC power.
(Shore or Generator)
Set "Solar First" as the priority of
output source.
Battery is disconnected.
Overload error. The inverter is
overload by 110% and time is up.
Output short circuited.
The temperature of internal
converter is over 120°C. (Only
available for 1-3KVA models.)
The internal temperature of the
inverter is over 100°C.
Battery is over-charged.
The battery voltage is too high.
Fan fault
Output abnormal (Inverter voltage
is lower than 190Vac or is higher
than 260Vac)
Internal components failed.
Over current or surge.
Bus voltage is too low.
Output voltage is unbalanced.
Battery is not connected well or
fuse is burnt.
Explanation / Possible cause
28
What to do
1. Re-charge the battery.
2. Replace the battery.
1. Check if batteries and the
wiring are connected well.
2. Re-charge the battery.
3. Replace the battery.
Check if AC breaker is tripped
and AC wiring is connected
well.
1. Check if AC wires are too
thin and/or too long.
2. Check if generator (if
applied) is working well or if
the setting range of input
voltage is correct.
(UPSAppliance)
Change output source priority
to Utility first.
Check if battery wires are
connected well.
Reduce the connected load by
switching off some
equipment.
Check if wiring is connected
well and remove abnormal
load.
Check whether the air flow of
the unit is blocked or whether
the ambient temperature is
too high.
Return to repair center.
Check if spec and quantity of
the batteries meet the
requirements.
Replace the fan.
1. Reduce the connected
load.
2. Return it to repair center
Return it to repair center.
Restart the unit, if the error
happens again, please return
it to repair center.
If the battery is connected
well, please return it to repair
center.