My UM2 is about 4 years old but I use it only moderately. Since yesterday it restarts each time I try to heat up the bed, half a second before that the lights flicker or get dimmed for a moment.
I found some threats about this, but is there really not way to test if its the bed itself, the power supply, the pvc? Does anybody have an idea how to track this or already found a solution? I tried to re solder the beds connections and leave a little gap between plastic connector and bead but no success so far..