System Maintenance; Abnormality Display And Warnings - Go Power MPPT-PRO User Manual

In order to maintain the best long-term performance for controller, it is recommended to conduct inspections twice a year
using the following points:
• Make sure the airflow around the controller is not obstructed and remove any dirt or debris from the heat sink.
• Check if the insulation layers of all exposed wires are damaged due to sun exposure, friction with other objects nearby,
dry rot, destruction of insects or rodents, etc. If so, it is necessary to repair or replace the wire.
• Verify if indicators are consistent with the device operations. Please note to take corrective actions for any malfunctions
or error indications if necessary.
• Check all wiring terminals for corrosion, insulation damage, signs of high temperature or burning/discoloration. Tighten
terminal screws.
• Check for dirt, insects nesting and corrosion and clean as required.
Warning: Danger, electric shock hazards! Make sure that all power supplies to the controller
have been disconnected before check or operation as above

4.1 ABNORMALITY DISPLAY AND WARNINGS

No. Error Display
1 E0
2 E1
3 E2
4 E3
5 E4
6 E5
7 E6
8 E7
9 E8
10 E9
Description
No abnormality
Battery over-discharge
System over-voltage
Battery under-voltage warning
Load short circuit
Load overloaded
Over-temperature inside controller
Photovoltaic component overloaded
Photovoltaic component over-voltage
Photovoltaic component reversely con-
nected

4. SYSTEM MAINTENANCE

LED Indication
ERROR indicator off
BAT indicator flashing slowly
ERROR indicator steady on
BAT indicator flashing quickly
ERROR indicator steady on
ERROR indicator steady on
LOAD indicator flashing quickly
ERROR indicator steady on
LOAD indicator flashing quickly
ERROR indicator steady on
ERROR indicator steady on
ERROR indicator steady on
ERROR indicator steady on
ERROR indicator steady on
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