Ive just fitted my system to my new car. the red light behind the face flashes so i belive power is going in. but the system is not coming on. with the red light flashing does this mean the systems wiring is still faulty? Can someone pls advise, thank oyu

general answer as car or truck maker not given

master cylinder or slave cylinder internal cup bypassing
rebuild or fit new parts

faulty/corroded connection to and or
brake pressure warning light on the master cylinder
replaceable

Check your wiring connections. A similar thing started happening to me out of the blue. The unit would work fine for a period of time, and then just shut off for no reason, and I couldn't get it to come back on. The next day, it would come on again when I started the car and stay on for a while, only to shut down again. The red light behind the face plate continually flashed, regardless of whether the receiver was working. In my case, there was something off in my red wire connection. The unit would turn on / shut off when I moving the wires on either side of the connection. I redid the connection, secured it with electrical tape, and the problem has not reoccurred. If the red wire is not the problem in your case, try the black and yellow connections. These appear to be the wires that could cause this to happen. I can't explain why the power kept repeating the power on / off cycle, unless the wires were in just the right position to be moved / jostled slightly while driving. Hope this helps.

try making sure both the red and yellow wires are getting power. Both wires need to have power going to them in order for the radio to work.

I just Spoke to tech support. This is what they said:
1. Key in the on position and the red power button lit, remove the face plate.
2. On the left bottom side press and hold the reset button, with a pen, for 10 seconds and let go. The red led on the right should flash.
3. Reinstall the face plate.
4. Push power. The unit should come back on.

Mine worked, and i was about to tear it out and return it. So try this first or even call tech support for Dual 1-866-382-5476.

the unit should have had the new power supply unit fitted, however in cyprus I don't know if that was available. I believe in the uk that after the repair there could be up to a two year guarentee, however don't quote me on that. If I were in your position, I would go onto the b and w web site, advise them of the red light flashing (again) and ask them how the best way to resolve the issue. If the main board or the amplifier have gone falty, they can cause the issue with the red light, however if the replacement power board was not the 'upgraded type' then the problem will come back.

contact b and w, (I would make them aware that you know that they have problems with the original power supply boards.)

hope this is of use.

where is the red flashing light comming from is there a image or text saying what it means?

but to be hinest i belive that the bulb has finished and died

it may be bad, i would replace that and see if the light comes back on,its easy to change ive done a few,just drain the oil then remove bolts and remove, install new gasket with new one,theres a way to bypass to test, i belive if you just unplug it or jump the wires,you can try both ways first before replacing it,if it has more than two wires going to it then dont try jumping it, just replace it, good luck.

My Sony lost its picture and had a flashing light. Unplugging for 36 hours solved the problem.

I had the same prob. was told that the bulb went out

wich car stereo do you have?
generally you have 3 connection for power, one to the positive battery, one to the ignition and one to the ground.
by the way let me know more details for helping