Hi,
I just moved into a house that has a SPA. We have been here for 4 weeks now and the SPA has been working perfectly. A couple a days ago the SPA control had a nervous breakdown. I could not start the jets using the "pump" button on the topside control panel. However if I hit the "light" button the pump and light would come on. If the hit the "light" button again the pump and light would go off. The "temp down" button was dead but but the "temp up" button would increase the temp and start the pump. I suspect the topside panel because all SPA functions (recirculation, heater, timers, etc) are working. Any advice would be appreciated.
SPA DETAILS
topside panel : GECKO SSPA SPA PACK CONTROL MODEL TSC-19 OPTION SL-GE1
Controller : GECKO SSPA-1-P122-B2-O1-CP2-LS-JJM-AX6-PP

Could well be the topside, might also be the PCB, but it might even be the topside harness. Might want to try that before you order far more expensive parts