Xantrex Truecharge 20+ Amp Owner's Manual - page 48

Maintenance and Troubleshooting

4–4

Typical Problems

This section lists typical problems you may have with the Truecharge+, 

suggests their causes, then offers possible solutions to the problems.

Symptom

Indicator lights do not turn on, or remain on, when charger is 

connected to an AC receptacle.

Symptom

Indicator lights continue to blink when charger connected to 

battery. Charging indicator light does not turn on continuously.

Possible Cause

Solution

1. No power at AC 

receptacle

2. Defective wiring

3. Open fuses in charger

1. Ensure that power is available at 

receptacle

2. Replace wiring

3. Have charger serviced by 

qualified person

Possible Cause

Solution

1. Charger does not detect 

battery for one of 

following reasons:

• poor connection

• reverse polarity 

connection

• damaged wiring

• open fuse in charger

2. Battery voltage is too low.

1. Check polarity and quality of 

battery connection.

If cables are damaged or internal 

fuse open, have the charger 

serviced by a qualified person.

2. Check the battery. 

Do not attempt to charge a 6 volt 

battery. If battery is rated for 12 

volts, leave it connected for 8 

hours to see if it will recover. If 

battery doesn't start charging 

after 8 hours, it is permanently 

damaged and will not accept a 

charge.