Hfl on my hot tub - Answered by a verified Pool and Spa Expert We use cookies to give you the best possible experience on our website. If you have a message code on the control panel of your spa, such as the one shown at right, follow the steps below. Pool and Hot Tub Depot and the Pool and Hot Tub Depot Logo are registered trade-marks. If the GFCI does not trip for some reason, the gFI fault will appear and the HOt flag will be set. Pressure switch is not working. dr: Inadequate water detected in heater.. dry: Inadequate water detected in heater. Remove the cover and allow to cool. That’s fairly easy to explain. HOT TUB FLO Error Code - HOT TUB FLOW ProblemsTo fix a hot tub FLO ERROR code, 3 flashing lights or just isn't heating up, watch this video to find out why. Heater is shut down, but other spa functions run normally. * Beyond Zones, Northern Territories and the USA do not qualify for free shipping ... HL, HFL: A difference in readings between temperature sensors has been detected indicating a possible water flow problem. There is Not Enough Water Flow through the Heater to carry the Heat Away from the Heating Element. OH: Sensors have detected water above 43.5 degrees. Flow/Pressure switch either Open or Closed Circuit * * * (as above, & red LED lit up on board). F2 = 4 hours daily filtration F4 = 8 hours daily filtration F6 = 12 hours daily filtration FC = continuous filtration Turn off the power to reset the tub's systems. High Limit Fault - - - , - - - ‘Watchdog’ - 48C reached, electronic fault, shuts system down. Heater is deactivated. If the spa temperature does not return to normal contact a hot tub technician. Remove the cover and allow to cool. Overview: The "HFL", "HL", or "HTR FLOW LOW" Fault has occurred 5 times in the Last 24 Hours or Less, and Heating has been Disabled. OH = Overheat 108° F, spa is deactivated. For code OH, remove the hot tub cover and set the tub to the economy setting. SN = Non functional high temperature sensor. FL = Flow. Could indicate a flow problem. Most hot tub owners are familiar with how to turn their hot tubs on and off. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Sensors have detected hot tub water above 47.8 degrees: Do not enter the water. We want to make sure that your hot tub is working properly. Once cooled reset. LF: Persistent low flow problems. Rule number 1 is to always fill the hot tub after a drain down by placing the hose pipe in the filter housing suction fitting (remove filter) this fills the hot tub from inside to outside, rather than placing the hose pipe in tub, (this fills outside to inside) and is the primary cause of FLO errors. (Displays on the 5th occurrence of "HFL" message with 24 hours). Do not enter the water. For FL1 and FL2 codes, you can perform three actions: verify that the tub's water level is sufficient; clean the filter; or purge the circulation pump of excess air. A "Cyclic Redundancy Code" (CrC) is a type of checksum algorithm that takes a string of data bytes and calculates from it a few bytes (the checksum) that depend on the entire file. * * * (3 flashing dots under temp display). If you have any questions or need further guidance, feel free to contact us. Dream Maker Hot Tubs. Do not enter the water. When the hot tub is placed into the ON position the water is heated to a temperature optimal for relaxation, and in the OFF position the hot tub’s heater, pump, and jets essentially have no power. We can help you figure out exactly what’s wrong with your hot tub and provide you with tips to prevent further issues. HFL: Substantial difference between temperature sensors detected. 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