Will This Kit Work On My Ozonator?
IF Your 230v Ozonator Looks Like This:
Turn off power, disconnect from spa, and remove cover. It it looks like this:
Yes,
  This Kit will install like this:
 
If your ozonator has either of these ozonators with the sightglass circled in red,  

OR
Then YES, this chip usually can be replaced instead of replacing the complete unit.