[{TableOfContents }]

!!!Introduction

''t.b.c.''

!!!Troubleshooting

!!Symptom: no LED lights up

''Please ask a professional electrician to operate this checks!''

# powercycle: unplug powersupply, wait for 10 seconds, plug the power supply again\\alternatively powercycle the switch or fuse or what ever has been installed to powecycle
# check source: plug some alternative device to the power plug and check if this device gains power; alternatively measure of power is available with an appropriate tester device (Mmultimeter, electricians