Pool Heater Says Water Sw Open - Web ensure all water valves are open and positioned correctly to allow normal water flow to the pool. So i opened the pool got the chem going and was trying to get the temp up. When this error occurs, the. This code is displayed when the heater’s control board detects an open. Web sw open stands for “switch open.”. Web common causes of the ‘water sw open’ error in rheem pool heaters include low water flow, dirty filters, and faulty. Web this error typically indicates a problem with the flow or pressure of water within the pool heater system. Web the “water sw open” error typically indicates an issue with the water pressure switch.
Web the “water sw open” error typically indicates an issue with the water pressure switch. Web ensure all water valves are open and positioned correctly to allow normal water flow to the pool. So i opened the pool got the chem going and was trying to get the temp up. This code is displayed when the heater’s control board detects an open. Web this error typically indicates a problem with the flow or pressure of water within the pool heater system. Web common causes of the ‘water sw open’ error in rheem pool heaters include low water flow, dirty filters, and faulty. When this error occurs, the. Web sw open stands for “switch open.”.