Schumacher PI-400 - Manual (Page 11)

PROBLEM: Red LED On
Reason/Solution
1. Battery voltage below 11 volts.
Recharge or replace battery.
2. Equipment being operated is drawing too much
power. Use a higher capacity inverter or do not use
this equipment.
3. Inverter is too hot (thermal shut down mode).
Allow inverter to cool. Check for adequate ventilation.
Reduce the load on the inverter to rated continuous
power output.
4. Unit may be defective.
See warranty and call customer service.
PROBLEM: Low Battery Alarm On All The Time
Reason/Solution
1. Input voltage below 11 volts. Recharge or replace
battery to maintain adequate power input.
2. Poor or weak battery condition.
Recharge or replace battery.
3. Inadequate power being delivered to the inverter or
excessive voltage drop. Check condition of cigarette
lighter socket. Clean or replace if necessary.
PROBLEM: TV Does Not Work
Reason/Solution
1. TV does not turn on. Try turning the inverter ON, then
OFF, then ON again. Contact TV manufacture for start
up surge and/or if the TV is compatible with a modified
sine wave. An inverter producing a larger power out
put may be required.
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