line 6 echo park problems, help!

[z6a6k6k]

i have a line 6 echo park which used to work. now when i plug it in all it does is flash a red light, no output not nothing, just blink, blink, blink. has anyone else had this problem before? thanks.

 

[PostApocalypso]

Manual says, battery needs replacing:
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If you're running off a DC power supply I'd try switching supplies. FYI these Tonecore pedals are all digital and need a lot of juice, if running in a daisy chain, try powering by itself instead.