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10.
TROUBLESHOOTING AND TECHNICAL GUIDE
To be able to troubleshoot safely and effectively, it is important to read this guide
completely before beginning any tests.
WARNING: DO NOT DISASSEMBLE THE CHARGER. TAKE IT TO A
QUALIFIED SERVICE AGENT WHEN SERVICE OR REPAIR IS REQUIRED.
INCORRECT REASSEMBLY MAY RESULT IN A RISK OF ELECTRIC SHOCK
OR FIRE. THE FOLLOWING PROCEDURES ARE INTENDED ONLY TO
DETERMINE IF A MALFUNCTION MAY EXIST IN THE CHARGER.
DANGER: TO REDUCE THE RISK OF ELECTRIC SHOCK, ALWAYS
DISCONNECT THE CHARGER’S AC CORD SET FROM AC POWER AND ITS
DC CORD SET FROM BATTERIES BEFORE ATTEMPTING ANY
MAINTENANCE OR CLEANING
LEDs Frozen (no activity) or Charger seems inoperable:
o
Battery may have been subjected to an Over-Discharge condition. Using a
voltmeter check if battery voltage is well under its 100% depth of discharge level
defined as 1.75V per cell for lead acid batteries. For example, if a 24V lead acid
battery measures well under 21V, then this condition may have occurred as a
result of batteries left in lengthy storage without a trickle charge applied to it. Try
removing the output leads from the battery pack (while A.C. Power is
disconnected from the charger) and reconnecting the output leads.
Batteries Hot To the Touch – Charger Continues To Charge:
o
A hot battery(s) signifies cells that are:
Shorted due to material coalesced at the bottom of the cell and not able to
break down and recombine back onto the battery plates, and/or
Stratification of the acid into layers where a denser acid layer is carrying
most of the amperage
An overcharged cell due to other cells being unbalanced and at a much
lower state of charge
o
Possible corrections include
Cease charging, operate vehicle to slightly discharge battery pack, and then
reapplying a charge
Breaking apart the battery pack and load test each battery – replace
defective batteries
Check Charger MODE settings and ensure it is properly set to the battery
selected to charge
Battery Run-Time Decreasing:
o
Refer to the
Accusense Charge Suite Application
section to review the many
tools available that aid supporting the analysis of historical charge/discharge data
which may pinpoint possible remedies.
