Hi, welcome to Just answer
How old is this unit ?
and how many times does it flash red ?
OK, this is a common issue with these units
7 blinks means the problem is with the SU or SD board
if you are looking to repair this yourself then you will have to take the back off the unit and check the board that is bad
well if it is under warranty then it will be better to contact Panasonic
as doing it yourself will void off the warranty
they should be aware of this issue
OK, you can call them at 0844(NNN) NNN-NNNN...You can get back to me if you need any assistance and I will help with no additional charges...Is there anything else I can assist you with today ?
You're welcome....Excellent feedback is appreciated if you are satisfied with my assistance.... Sorry about the bad news..Have a Good Evening