I powered off my SUNA V2 and applied external power again. Now, my SUNA V2 won’t boot up. What is the cause and how can I resolve this?

The SUNA V2 has capacitors that maintain internal power for to the electronics long enough for a proper shutdown process when external power is removed. However, these capacitors must completely discharge between power cycles, or else the SUNA may fail to properly boot up when external power is reapplied. If your SUNA is stuck in a state where it will not respond to external power, unplug the bulkhead connector completely from the SUNA and wait 30-60 seconds before reapplying external power again.