53 Owner’s ManualEnglishIf the LCDdisplays...LFdrYdrSnTSnHSnSIndicates...Water flowproblem- Persistentflow problemLack of waterto the heaterLack of waterto the heaterHeater sensor Anot functioningHeater sensor Bnot functioningHeater sensorsare out ofbalanceWhat happens...Heater will shut downwhile spa continuesto function normallyHeater will shut downwhile spa continuesto function normallyHeater will shut downwhile spa continuesto function normallySpa automaticallydeactivatedSpa automaticallydeactivatedPossible cause...- Plugged filter- Low water- Slice valve closed- Blocked suctionreturn/filter/skimmer- Slice valve closed- Blocked suctionreturn/filter/skimmer- Non-functioningsensor- Non-functioningsensorCorrective Action...- Remove filter and clean- Add water- Contact dealer- Open all jets- Add water- Contact dealer- Open all jets/valves- Remove blockage- Add Water- Open all jets/valves- Remove blockage- Contact dealer forreplacement sensor- Contact dealer forreplacement sensor- Contact dealerCommon LCD MessagesThe following table defines other messages you will frequently see on the LCD display:Message... What it is... What it means...Pr -OR- RUN/ Priming mode Spa is in normal Priming Mode operationPMPS/PURG/AIR/--SLP Sleep mode Spa is in normal Sleep Mode operationECN Economy mode Spa is in normal Economy Mode operationSTD Standard mode Spa is in normal Standard Mode operationICE -OR- TOO COLD Freeze condition Heater will come on to keep water above 45°F- - Water temperature Current water temperature not measuredWATR TOO HOT Water temperature Spa water is too hot, functions disabled