J+ Booster
No Power / Dead Unit
Charger does not power on at all; no display, no LEDs, and no relay click when connected to mains.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Blown internal input fuse, Failed internal power supply on main control board, Loose mains connection at input terminal block or plug, Faulty mains cable to J+ Booster
How to Fix / Troubleshooting
Safety: Mains voltage is present at the input even if the unit appears dead. Do not open the housing unless you are a qualified technician.
- Verify outlet: Plug another device (e.g., lamp) into the same outlet to confirm it has power.
- Check plug and cable: Inspect the J+ Booster plug and input cable for cuts, kinks, or burn marks. If damaged, stop using immediately.
- Try another outlet: Use a different, known-good outlet on a separate circuit.
- Check upstream breaker: Ensure the circuit breaker or RCD feeding the outlet has not tripped.
- If still no signs of life: The internal fuse or power supply on the main control board has likely failed and must be replaced by a service technician.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
J+ Booster Input Power Cable
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements