Modern hot tubs with electronic controls feature spaside keypads with digital readouts. Wondering what your spa is trying to tell you?  Below is a list of common error codes from the top manufacturers of control equipment for hot tubs. Disclaimer: Although we hope this information will be useful, error codes are subject to change without notice. We make no representation as to the accuracy or completeness of this data and are not responsible for errors or omissions. Refer to your owner's manual. CoLd = Temperature in the spa heater housing is below 40° F. Status of the heater element is unknown. The low speed pump or circ pump will operate continuously until the temperature rises above 45° F.The spa is at a temperature above 108° . HLoH = Hi Limit Over Heat. Hi limit sensor is disconnected or shorted or the spa temperature is above 112° F. SEoP = Sensor open or disconnected.  Heater disabled but the spa is operational. SESH = Sensor short, nonfunctional.

PSoC = Pressure switch open with circulating pump. PSoL = Pressure switch open with low pump. PSoH = Pressure switch open with high pump. ToE = Time out error. Balboa (used by Belize Spas and many other hot tubs) pd = Power supply, unit running on battery backup OH = Sensors reading 112-118° F.Spa has shut down. One sensor has detected 118° F at heater.One sensor has detected 110°F. Flo = Improper flow or pressure switch malfunction Cool = Water temp 20° below set point ICE = Potential freeze condition has been detected Sn1 = Hi-limit sensor malfunction Sn3 = Temp sensor malfunction SnA = Spa is shut down. Sensor plugged into jack A is not working. Snb = Spa is shut down. Sensor plugged into jack B is not working. SnS = Sensors out of balance. If alternating with temp, may be temporary condition. If display shows only this message (blinking) spa is shut down. HFL = Substantial difference between temperature 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 water detected in heater. dry = Inadequate water detected in heater. (Displays on third occurrence of "dr" message).  Spa is shut down. Pr = When spa is first actuated, it will go into Priming Mode. ILOC = Interlock failure - possible pump or ozone spike . (---) =Unknown water temperature. (Displays when first powered up after refill). Std = Spa operating in Standard Mode. Ecn = Spa operating in Economy Mode. SE = Spa operating in Standard-in-Economy Mode. OH = Temp exceeds 118° F Fr = Freeze condition - temp below 40° F FL = Pressure switch failure EO = Shorted temp sensor E1 = Open temp sensor E2 = Shorted hi-limit sensor E3 = Open hi-limit sensor E4 = Shorted flow switch E7 = Improper electrical connection

th1/39 = On startup indicates temperature probe problem. th2/current temperature = On startup indicates temperature probe problem. th3/39 = On startup indicates water temperature less than 39° F. OH = Overheating, water over 112° F. System will restart when temp. hot = Overheating, water over 112° F. System will restart when temp. HL = High limit switch tripped. OH = Overheat 108° F, spa is deactivated. Hardwood Flooring Jack Harbor FreightDo not enter the water.Best Alternative Down Comforter Consumer ReportsPressure switch is not working.Pure White Kittens For Sale In Derby SN = Non functional high temperature sensor.  F2 = 4 hours daily filtration F4 = 8 hours daily filtration

F6 = 12 hours daily filtration FC = continuous filtration CL = Current Time of Day ECdu = Economy Mode Duration Econ = Economy Mode Turn On Fldu = Filter Cycle Duration Flon = Filter Cycle Turn On FLC = Pressure Switch Alarm FLO = Pressure Switch Alarm FrEE = Freeze Protection Alarm HL = High Temperature Alarm Loc = Panel / Keypad Locked PrH = Temperature Sensors Alarm Prr = Temperature Sensors Alarm Tu = Temperature Set Celsius Tu = Temperature Set Fahrenheit FLO = Pressure switch failure, switch open FLC = Pressure switch failure, switch closed Prr = Temp sensor failure Prh = Hi-limit sensor failure HL = Sensor measuring 119° F FrE = Possible freeze condition detected OH = Spa temp exceeds acceptable limits FLO = Flow problem ICE = Freeze condition detected SN1 = Hi-limit sensor failure SN2 = Temp sensor failure PS = Flow or pressure switch failure

SH = Shorted sensor OP = Open Sensor LO = Temp below 60° F - freeze HL = Temp above 118° F OH = Overheat Protection (Heater is deactivated, pumps low speed is activated). FLO* = Flow Switch (heater is deactivated. Pump may also be deactivated). Hold = Panel sensors have been pressed too many times in a short period of time. HOT = Circuit Board temperature has exceeded acceptable limit. ICE = Freeze protection.  No action is necessary. I CE2 =  Freeze protection.  PnL = Communication between the panel and circuit board is faulty. ---- = "Watchdog" (spa is deactivated) A problem has been detected. Sn1 = Open sensor (heater is deactivated) or  Shorted sensor (spa is deactivated). Sn3 = Open or shorted sensor ( heater disabled). FLO2 = Closed or shorted flow switch on system startup OH = Temperature has exceeded 110° F SN = Sensor failure FL = Flow/pressure switch stuck in closed position Sn1 = Nonfunctional high temperature sensor.

Sn2 = Nonfunctional temperature sensor. FL1 = Water flow problem, inhibited or pressure switch malfunction. Check for proper spa water level and ensure pump is primed. Check for clogged filter. FL2 = Pressure switch problem. Switch closed while pump is deactivated. COL = Cool condition. If water temperature drops 20°F below set temperature, low speed pump and heater activates to bring temperature within 15° of set temperature. ICE = Freeze condition. Low speed pump and heater will activate until spa reaches 65°F. OH = High temperature condition, has reached 110°F. Do not enter the spa. Low speed pump (and air blower if so equipped) will activate to assist in lowering temperature.Water temperature has reached 118°F. Entire system is disabled.  Contact qualified service technician. ILOC = Interlock failure - possible pump or ozone spike FLO = Pressure switch malfunction or Flow switch malfunction (system specific) Hold = Panel buttons pressed to many times to quickly