Learn why your Pylontech ALM LED is blinking once and how to resolve it effectively.
A blinking LED typically indicates a fault condition, such as a short circuit. It's essential to check the connections and battery health.
To troubleshoot a short circuit, inspect wiring for damage, ensure proper connections, and test the battery for faults.
The inverter is designed to protect the entire solar system from electrical faults, including short circuits. A short circuit can occur when there is an unintended low-resistance connection between two points in the electrical circuit, which can lead to excessive current flow. The inverter employs various safety mechanisms, including insulation resistance testing (RISO), which detects insulation failures that could lead to ground faults. If the measured resistance falls below a predefined threshold, the inverter will trigger a fault code to prevent potential damage to the battery or other components.
When the Pylontech ALM LED blinks once, it typically indicates a short circuit fault. Users may observe this blinking pattern on the battery unit's LED indicator, and monitoring applications may display alerts related to battery health or fault conditions. Additionally, there may be noticeable drops in system performance or energy production, as the inverter may disconnect from the battery to prevent damage.
To avoid encountering this issue in the future, ensure regular maintenance checks are performed on the battery system, including visual inspections for corrosion or wear on connectors and wiring. Additionally, ensure that all components are installed according to manufacturer specifications and that the system is configured correctly for the specific battery type. Keeping the system area dry and free from excessive moisture can also help mitigate the risk of ground faults.