The error LED is lit
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Explanation 1: Reverse polarity.
Test: Make sure that the + cable/clamp is connected to the + terminal and the – cable/clamp is connected to the – terminal.
Explanation 2: Loads are connected to the battery which requires more power than the charger can provide.
Test: Turn off or disconnect the loads when charging.
Explanation 3: The clamps are short circuited in Supply mode.
Test: Separate the clamps.
Temperature LED
is lit
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Explanation Multi XS 25000: DC interruption or short circuit in the cable.
Explanation MXS 25: This is normal, the LED is on indicating that the temperature sensor is activated. If the LED is turned off here is a DC interruption or short circuit in the cable.
is lit and then turns into error mode
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The analysis phase is testing if the battery can retain the charger given.
Explanation 1: Large loads are connected to the battery and are draining the voltage.
Test: Disconnect the battery and try charging again.
Explanation 2: The battery cannot retain the charge given.
Test: The battery needs replacing.