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    Hot Tub Error Codes

    Balboa Error Codes

    • pd: Power supply on battery
    • OH: Sensors reading 112-118F
    • OHH: Overheat. One sensor has detected 118º. Spa has shut down.
    • OHS: Overheat.. One sensor has detected 110º. Spa has shut down.
    • Flo: flow/pressure switch error
    • Cool: Water temp 20 degrees below set point
    • ICE: Potential freeze condition
    • Sn1: Hi-limit sensor failure
    • Sn3: Temp sensor malfunction
    • Sna: Sensor A fail
    • Snb: Sensor B fail
    • SnS: Sensors out of balance. If alternating with temp, may be temporary condition.
    • HFL: Substantial difference between temp sensors detected. Could indicate a flow problem
    • LF: Persistent low flow problems. (Displays on the 5th occurrence of “HFL” message with 24 hours). Heater is shut down, but other spa functions run normally.
    • dr: Inadequate flow in heater.
    • dry: Inadequate flow in heater. (Displays on third occurrence of “dr” message)
    • Pr: When spa is first actuated, it will go into Priming Mode
    • : Unknown water temp.
    • Std: Spa operating in Standard Mode.
    • Ecn: Spa operating in Economy Mode.
    • SE: Spa operating in Standard-in-Economy Mode.
    • ILOC: Interlock failure – possible pump/ozone spike


    • AOH: Temp in Equipment compartment to high
    • FLO: Pressure switch failure, switch open
    • FLC: Pressure switch failure, switch closed
    • FrE: Possible freeze condition
    • Flashing Display
    • 3 Flashing Dots
    • 3 Flashing Dots & LED
    • HL: Sensor measuring 119F
    • Prr: Temp sensor failure
    • Prh: Hi-limit sensor failure



    Gecko SP Codes (Spa Packs)

    • SP-HR: hardware error
    • SP-BR: breaker setting to low
    • SP-IN: Input voltage low
    • SP-F1,F2 or F3: Fuse 1,2 or blown
    • SP-OT: Temp inside skirt high
    • SP-OH: Water temp over 112F



    Gecko RH Codes (Heater)

    • RH-HR: Heater Hardware error
    • RH-NH: Heat attempted & failed
    • RH-NF: No flow in heater
    • RH-NC: Comm error to Pack
    • RH-HL: Heater Hi Limit



    Gecko Accessory Codes

    • P1, P2 or P3-ER: Pump 1,2 or 3 failure
    • CP-ER: Circ pump failure
    • BL-ER: Blower failure
    • O3-Er: Ozone error
    • A1/A2-ER: Aux. system error
    • FN-ER: Fan failure
    • FB-ER: Fiber optic failure
    • SC-ER: System learning failure
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