Solution
Check quick connects
Check grip connections
Load test/replace battery
Clean/tighten battery connections
Check grip connection
Check or change outlet
Check continuity of plug pins/replace plug
See figure of unit to check wiring connections
Short across studs on gauge to see if charger
comes on - replace gauge
Replace charger
Set to 12 Volt position
Possible Cause
Quick connects not locked together
Poor grip connections
Low/defective battery
Loose jumper cable connection to battery
Poor grip connection
Faulty 110 AC outlet
Bad plug on unit
Loose/defective connections
Defective amp gauge
Faulty charger
"Select cable" has to be in 12V position
in order to charge; unit won't charge
24V systems
Problem
Unit won't jump
Unit won't charge
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