1
Verify the AC socket first
Test the outlet with another appliance and check the breaker or fuse if the outlet is dead. The charger cannot self-diagnose a missing AC supply.
Try a different earthed socket on a separate circuit
Issue-Specific Guide
No LED Response At All
Use this path when the charger appears completely dead even though AC power is available.
Before escalating, use the universal reset once: disconnect AC power for 30 seconds,
confirm the LEDs are fully off, then reconnect.
Quick Pre-Checks
Run these quick checks before you assume the charger has a deeper hardware fault.
AC socket is energised. Test it with another appliance.
AC plug is fully inserted, undamaged, and its pins are clean and straight.
DC output connector is fully locked into the vehicle inlet, not just inserted.
Both AC and DC cables are free of cuts, kinks, crushing damage, or severe bending.
Charger vents are unobstructed and have at least 10 cm clearance on all sides.
Ambient temperature is below 45 C.
No extension cord is being used, or the cord is correctly rated and within the allowed length.
Universal reset has been tried: AC off for 30 seconds, then reconnect.
Step-by-Step Field Checks
Follow the steps in order. Stop and escalate as soon as a step says the issue is not field-serviceable.
2
Inspect the AC plug and cord
Look for bent pins, corrosion, debris, heat marks, or damage to the cable jacket. Make sure the plug is fully seated.
Use only a clean, undamaged AC plug and cord
3
Remove the extension cord completely
Voltage drop and poor contact at an extension lead are common causes of no-start complaints. Connect the charger directly to a rated wall socket.
Direct wall connection only
4
Perform the universal reset
Disconnect AC power for 30 seconds, ensure the LEDs are fully off, then reconnect. Most non-hardware startup faults clear with a full AC reset.
AC off 30 s -> reconnect
5
Still no LED after the checks above?
The charger may have an internal input fuse or AC input circuit fault. This is not a field-service task.
Do not open the unit. Contact service support.
If the charger shows a fault pattern at any point, cross-check the LED sequence on the
LED Fault Codes page before retrying power cycles.
Internal Links
Continue the Investigation
Keep moving between the support guides below to narrow the issue faster.
Related Page
Step-by-Step Troubleshooting
Pick a symptom and follow the correct field checks before escalating to service.
Related Page
LED Fault Codes
Review Solterra LED fault codes, match blink patterns, and use the interactive simulator and reference table.
Related Page
How the Charger Works
Understand the AC input path, PFC stage, DC-DC stage, relay, and thermal controls.