[Richard L]

1) The failure of the relay may probably due to the previous wiring problem.

2) How did the FAV got clogged with debris? Did you not follow the instruction abour purging the system first? Anyway, it is ggod to knwpo you have managed to clear it. Nor sure if some got inside, which willbe difficult to clear.

3) It is normal for the system failsafe to trigger if it is not set correctly or no spray.

Can you go through the testing of the system on page 14 of the user manual before posting more questions here. It just make progress slow if you jump too far ahead.

For the time being put the jumper onto DFS (disable fail safe). Play with the system and then set the failsafe part later.