There are no user replaceable parts in the
J-1000 series controller. The controller is
built to have a long life. When a controller
fails you must replace the complete controller.
Note: These units are obsolete.
Jacuzzi Hot Tubs has stop using these
manufacturer's components and has switch to
Contact your local Jacuzzi Service Company and
they should have a kit from Jacuzzi that allows
the complete control box and topside to be
converted to the new unit.
Once completed your J-400 should last for years!
We do not carry these kits.