Silly question - should the blue flashing light be on all the time

Thermador oven blue light flashing
When a fault occurs, the control will flash the blue oven "on light" and the Blue "heating light" sequentially to indicate the fault. The fault codes have two numbers, these numbers are interpreted by the number of times the lights flash.
http://pdfstream.manualsonline.com/2/24cb1c7a-813c-4aa7-836b-9488600a6763.pdf

This might sound silly Andy, but there is a cap on the inside floor of the machine thats needs to be topped up with dishwasher granules mate

Sounds silly, unplug the tv and any appliances in the same socket connected to the tv, plug the tv in on its own and just hold the power button for an extra second or two if this works, leave the tv on and plug the applications back in

Silly question, but is your friends phone Qi supported? Normally a red flashing light means that there is an error in charging. It will blink blue when charging and steady blue when fully charged. I am not quite sure what it's erring for, however, red should only blink when there is a problem, so I would have to say that it is having problems and not charging properly. What is causing that I'm not sure, I might trying Googling your particular model of charger and see if they have an FAQ that will explain the lights. This is the best I can offer at this time. Good Luck! Maybe someone else has encountered this and can go a little more in depth.

Error codes following link:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#honeywell

this sounds totally silly but is the power button on the vacuum actually off? Had the same problem, where the battery was completely empty i didn't know my son had switched the vacuum on put it on charge and the light was flashing. I took it off the charging stand pressed the power button then put it back....now charging perfectly. Anyone who doesnt have this appliance will think you sound stupid but its just a clicky button so visually the button looks the same on or off.

I had the exact same problem. Boombox flashing blue, but not rapidly flashing blue. I did two things that seemed to fix it:

1: Reset the device by switching it on, then holding both volume up and volume down buttons at the same time for 10 seconds. The blue flashing light will briefly flash quicker to confirm.

2: Switch off the boom box

3: Switch on using the power button and (very important) immediately press and hold the Bluetooth button. The Bluetooth button needed pressing and holding almost instantaniously after the power button for it to work for me. I had to try several times to get it to work.

When you do this successfully, the Bluetooth light starts flashing rapidly and it enters search mode.

I nearly threw my speakers away, now it works and connects fine :)

This may sound silly but it worked for me. Try sticking the key in the drivers side door with the alarm going off and go through the motion of unlocking the door. Good luck.

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tried the battery, charge it manually, sounds silly but i had this problem with my 600ss
thanks