Davey Spa-Quip Spa Power SP800 PCB - Circuit Board. Suits all Spa Power 800 spa controllers. Backwards compatible with old models. New model also supports  Variable Speed Drive (VSD) pumps, and standard 12V LED lamp. Part number 2 in the diagram.

• This PCB can be used on all models of SP800 (SP800AU-20 SP800-20 SP800-30) and all others.
• Davey / SpaQuip / Spa Power - Suits all SP800 Yellow, as well as older SP 800 Black boxes. Also 915607 SP800AU-20, SP800AU-32

Tip: Before replacing this PCB, Isolate Power, then unplug Lights & Blower Speed control cable. Switch on power and see if PCB starts working. In some cases, a faulty light or blower can cause the PCB to 'power down' and be completely unresponsive.

Q846606SP Motherboard Control Board