Yesterday my Jandy pro heater had two messages. One check low flow and another was error check monitor. My guy put in a flow valve in my intake hose and it got rid of the water flow message but not he other. Today I am back to the flow message and the other is gone. I am looking at the monitor and it says no flow 100%. So I turned it down to 0% and it says standby. What can I do to get the heat to work. Flow now s amazing and my skimmer is dancing around the pool.