Quick Charge QPXU User Manual
Page 8

TROUBLES HOOTING
Symptom
Cause
Corrective Action
No voltage reading on 
meter when connected 
to battery, and the LED 
flashes red/green. 
 
Connected reverse to 
battery, or not connected 
to battery. 
 
 
 
Break in DC cord, or 
connector. 
 
Battery too dead to 
charge. 
Correct polarity, or 
connect to battery. On 
chargers having a white 
and black wire, white is 
positive. 
 
Have a qualified person 
make repair. 
 
Replace. 
When switched on, the 
red LED does not light, 
and no amps read on 
meter 
The panel mount fuse is 
blown. 
 
There is no AC power 
present at the plug. 
Replace with one having 
the same rating. 
 
Check that there is 
power at the source. If 
using an extension cord, 
check that it is not 
damaged. 
When I put a volt meter 
across the output of the 
charger there is no 
power coming out when 
I switch it on. 
The charger must be 
connected to a battery to 
turn on. 
The batteries don’t 
receive a full charge. On 
wet cells, the specific 
gravity will not rise to a 
full reading after the 
charge has completed. 
The charger is too small 
for the battery. 
 
 
 
The charge profile is not 
set correctly. 
 
 
The cycle needs more 
time. 
 
 
The battery is defective. 
Check that the charger’s 
output is about 10% of 
the amp hour rating of 
the battery. 
 
Recheck the dip switch 
setting. If in doubt, 
contact us. 
 
If you have a 4 position 
switch, switch #1 
position ON. 
 
Replace. 
