IQ panel 4 black screen

Had a home renovation done that lasted a year. I left my IQ panel in place on the wall plugged in the whole time. There was a point electricity to the house was off but for how long I’m not sure. Now when I unplug and replug the panel back into the wall it blinks red twice and then rapidly blinks blue a handful of times and the screen remains black. Do I have to replace the blue battery in the back?

It is possible that the battery became deeply discharged while it was unplugged. Some steps to try to get the battery to charge can be found in the guide below.

Does anything change when you try following those steps?

If the battery appears to be damaged or swollen, you can purchase a new one from our online store.