Optima 880 Hot Tub light is red. Has a closed flow switch x2 messages: The flow switch is malfuntioning closed. Heater is disables. Contact your authorized dealer or service organization. 2nd message: Closed Flow Switch on Startup Shorted flow switch on system start-up (system disabled). Contact your authorized dealer…..
We pulled out the filters and reinstalled. Powered off the hot tub but 2nd message came up. Some trouble shooting we can do ourselves?
