Page 156
Speed Level Seres - Servce & Parts Manual
January 2019
Secton 9 - Troubleshootng - 3084ES Models
Problem
Diagnosis
Charger does not
turn ON - no LEDs
The AC plug must be disconnected and reconnected to start the charger once it has
turned-off from a charge cycle.
Connect the AC supply cord securely to a live AC outlet (minimum 20-amp circuit)
Check the AC outlet to ensure it is working and has 20-amp supply.
Check that DC output wires and connections are in good working condition.
Replace charger if everything else is correct.
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Red FAULT LED is
ON or BLINKING
The faults identified below cause the FAULT LED to turn ON or BLINK. If the cause of the
fault is removed the charger restarts automatically.
LED is ON
Weak or bad battery pack, bad cell, low electrolyte level or batteries excessively
discharged.
LED blinks once: OUTPUT CONNECTION ERROR
Check Battery and Charger Connection
Connection may be corroded or loose
Check for pinched or broken wires (may cause a short)
Output may be connected in reverse polarity to batteries (the charger is not
damaged by any of these problems.)
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Red FAULT LED
BLINKS twice:
charger has Timed-
Out
The charger has a 22 hour timer - if charge cycle is not complete within 22 hours the
charger will stop charging.
Possible Causes:
Batteries are extremely discharged - unplug for 30 seconds then plug charger
back in to restart and complete charging.
Electrolyte is low in one or more cells.
Batteries are weak, old, or have one or more bad cells. Batteries will still charge
but in a weakened capacity - they should be replaced.
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Batteries do not
fully charge
Overnight Charging
Make sure AC power supply is not being switched OFF at night
NEW batteries
New batteries sometimes require 20 to 30 charge/discharge cycles before they
charge normally. 80% LED after overnight charging is normal. Within a few weeks
the 100% LED should light after overnight charge.
OLD batteries
Check for dead cells or reduced capacity.
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AC Line circuit
breaker tripped or
fuse blown
Overloaded Circuit
Minimum 20-amp service required. Plug charger into a different AC outlet on a
different circuit. If charger operates properly the AC line may require repair. If
charger fails and AC line checks “good” the charger should be replaced.
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