Axpert MEX-1500/ MEX-3000 Service manual
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When the unit is
turned on, internal
relay is switched
on and off
repeatedly.
LCD display and
LEDs are flashing.
Battery is disconnected.
Check if battery wires are
connected well.
Buzzer beeps
continuously and
red LED is on.
Fault code 07.
Overload error. The inverter is
loaded with more than 110%
load and time is up
Reduce the connected load
by switching off some
equipment.
Fault code 05.
Output short circuited.
Check if wiring is connected
well and remove abnormal
load.
Temperature of internal
converter component is over
120°C.
Check whether the air flow
of the unit is blocked or
whether the ambient
temperature is too high.
Fault code 02.
Internal Inverter component over
100°C
Fault code 03.
Battery is over charged.
Return to repair center.
The battery voltage is too high.
Check if spec and quantity
of batteries are meet
requirements.
Fault code 01.
Fan fault
Replace the fan.
Fault code 06.
Output abnormal (Inverter
voltage below than 190Vac or is
higher than 260Vac)
1. Reduce the connected
load.
2. Return to repair center
Fault code 08.
Internal components failed.
Return to repair center
Fault code 09.
6.4 Quick start
Before any detail check of the system, please check the components listed as follow table.
NOTE: It is important to check the capacitor’s voltage on the board lower than the safety voltage before
any check action.
