rednj72 Posted July 12, 2023 Report Share Posted July 12, 2023 I have Morgan spa manufactured in 2008. Three lights are blinking on display. New motor. New pressure switch. Will turn on, heat up, run one cycle then quits heating and three lights flash. Somebody help Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted July 13, 2023 Report Share Posted July 13, 2023 3 dots flashing is a flow error. Dirty filters (Remove filters during testing) Jets closed, low water level. Did you replace the pressure switch with exact same part number? Is the heating/filtering related pump moving water? If not there could there be an air lock in the wet end. Post photos of the circuit board and the schematic on the inside cover. Quote Link to comment Share on other sites More sharing options...
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