M&G 24V-25A - Page 9

Page 9
M&G Technologies, LLC | Cleveland, OH 44202
LED Table for Troubleshooting
Yellow Green #1 Green #2 Red Status
Case 1
OFF OFF OFF OFF Normal
Case 2
ON ON OFF OFF Normal
Case 3
ON
ON/OFF
ON OFF Normal
Case 4
OFF OFF OFF OFF Not Normal
Case 5
ON OFF OFF OFF Not Normal
Case 6
ON OFF OFF
Blink Once in every
8 seconds
Not Normal
Case 7
ON OFF OFF
Blink twice in every
8 seconds
Not Normal
Case 8
ON ON OFF
Blink twice in every
8 seconds
Not Normal
Case 9
ON ON ON
Blink Once in every
second
Not Normal
Case 10
ON Blinking OFF OFF Not Normal
STEP 1: Check to make sure the charger is connected to the correct
STEP 1: Check to see if battery pack is a 24V pack.
Charger is not charging. Reason? - wrong battery pack or over-
Trouble shooting steps:
STEP 1: Check to see if battery pack is a 24V pack.
Trouble shooting steps:
STEP 2: Was there a load on the battery during the charging process. If
Possible cause:
Possible cause:
Possible cause:
Trouble shooting steps:
STEP 5: If none of the above worked, check to see if the battery AH
STEP 2: If the batteries are bad, change batteries.
Possible cause:
Charger is not charging. Reason? - battery voltage may be too hight.
STEP 3: Check if the voltage of the battery pack is greater than 6V. If
STEP 2: Check to see if the battery voltage is higher than 21.6V. If the
voltage is lower than 21.6V, the batteries might have been overly
discharged. Batteries may need to be replaced.
The voltage of the electrical network is not in the correct voltage ranges
Trouble shooting steps:
Possible cause:
Charging is timed out (in 24 hours) . There could be several reasons:
STEP 1: Check if the batteries are weared off, or damaged.
Batteries charged to 100% too quickly. Reason? - the batteries were
almost full prior charging, or the batteries are bad.
Trouble shooting steps:
STEP 1: If the battery pack was almost full, before charging, the charger
STEP 1:
Check to see if the battery pack is a 24V pack. If no, change to
STEP 2: Check to see if batteries are connected correctly (no open
circuit, short circuit, or reverse polarity).
Trouble shooting steps:
Condition:
AC power on, charging in process.
Condition:
Charging is complete, charger is in maintenance mode.
Possible cause:
AC power is on, but the charger is not charging. Reason? - the charger
may not get the correct voltage from the battery.
Possible cause:
AC power is connected to the charger but measured no AC voltage.
Trouble shooting steps:
STEP 1:
Measure input AC voltage, the correct voltage ranges are: 85V-
LED
Condition: AC Power is not connected to the charger.