Jacuzzi ...ERROR CODE FL- 2 ..Flow Switch R & R.(DIY Spa Repair) FLOW Issue FL-1 and FL-2

[@erincollom3726]

Scott, you Rock!! I have 6-month-old Jacuzzi and got the FL-2 Error code. Checked the connections as you suggested and, Voila!, back in business! Thanks Spa Man! I think all your fans need to pitch in and get you a nice satin cape!

[@Theriangtag]

Thank you so much!!!! I couldn't figure out the cause of the "FLO2" error message on our Sundance spa. I tried 3 different possible fixes. Nothing worked. Knowing almost nothing about spas but being very handy and knowing my way around electrical & mechanical parts I was very frustrated and was about to give up and call a spa guy. Then I was fortunate enough to find your video. Turns out it was a loose connector! Such a great feeling of satisfaction to fix myself and also not having to spend any money! Next time I have a problem I will be sure to look for your advice! Thanks again!

[@sk8-brd-bus124]

This FL2 error happened to my Sundance today. I accidentally dropped the cover and the jets kicked on. Apparently the flow switch was stuck in a closed position and the cover falling on the tub loosened it free. Going to get a new flow sensor as this will happen again. Super easy and helpful video. Thanks.

[@timlara4138]

This was exactly what I needed to help me with the correct sequence of steps and have the right tools handy. Thank you!

[@spaman5440]

You are very welcome and Thanks for Watching & SUBSCRIBING

[@PaulKing-o3o]

Hi Scott, I appreciate your videos- very helpful. I have a problem with a 2004 jacuzzi J 355. When the tub is warming up after filling the tub the reheating process is normal. Then when it hits the desired temperature setting (102) the display indicates that the heat has gone off, but the heater has not gone off. I have my hand on the actual heater pipe while this is happening and it is definetly staying on. Then about 60 or 90 seconds later the circ pump shuts off completely and almost instantly the heater metal pipe gets raging hot to the touch. At this point I run to the breaker box and shut everything off. I have already replaced the temperature sensor and it still is happening. I have also replaced the Laing circ pump with a new Laing circ pump this week also- no change. Any thoughts are really appreciated. Thank you. Paul

[@spaman5440]

You have a couple things that come to mind. I replace the Cir pump heat sensor Hi/Low sensor Flow switch Filters... I call this a system Im already there so I replace them all if I still have a problem it is most likely a software issue with the board and that would need to be replaced also. Thanks for Watching & SUBSCRIBING

[@Tedroy]

This worked for me. Dead pool for 3 years. Popped this in and golden. Thanks Spa Man!

[@rtmiv2030]

You are the "SPA" man. I just wish I had my flow switch so easily accessed. I have a J-280 model and I can't find it yet, has to be as hard as possible of course. Still taking it apart looking for it.

[@kencheney3849]

Great video, sure wish you would have pointed out what a bear it was to feed the small wire through the fitting on the side of the controller. Wow... that was the hardest part. Filling up now!

[@ThaChilean23]

Your videos have been extremely helpful. I have a Jacuzzi J230 that I assumed from somebody with a broken j pump housing on the main pump. I purchased a whole new pump for good measure. I am struggling to understand where the smaller circulation pump that feeds the heater supplies water from. The line in on the circulation pump was sitting unhooked when I received the tub, and I do not see an obvious place to plumb it to. Thanks in advance for any help, you rock!

[@paulvo4736]

Hi Scott, I have Sundance 850 error code sn 3 no heat can you help me out thanks

[@spaman5440]

Replace the heat and temp sensors as well as the cir pumping flow switch and filters if they are over a year old. Thanks for Watching & SUBSCRIBING

[@nitintyagi9073]

Was searching how to test the flow switch you explained it very well exact same problem wire were loose plug them back in and it started working again👏👏

[@EricRussell-r1m]

Will the flow switch keep your heater from working?

[@F451C233]

40d comes up on my J355 jacuzzi , it’s like the topside control locks and none of the buttons will control anything. Tried the resetting of the breaker . Pump comes on and runs through the cycle. Sometimes the topside works and other times it will not work when trying to push buttons . Need some insight, thank you .

[@spaman5440]

Make sure the topside is connected properly if that doesn't fix it its most likely a software issue and its kinda a crap shoot... It will either be the board or the topside or both... What is going on is the system is not talking to itself ...now for the fun part you have to narrow it down to what you think is the problem you have to look at all the parts and see what just doesn't look right 1 a tear in the overlay that has let water seep in 2 a crack in a soldered connection on the board 3 a loose connection on the board Sometime you get lucky and it is steering you ring in the face and its an easy cheap fix other time its over a Thousand to fix. Thanks for Watching & SUBSCRIBING

[@milesnichols469]

I have a Jacuzzi J380 that was built in 2003. It had been working great until we received an error message consisting of four dashes on the screen (- - - -). I replaced the temperature sensor next to the filters and that didn’t fix the problem. We are still unsure what the problem is and we are looking for some advice. All of these sensors plug into a single clip with multiple positions within the clip. Any help you could offer would be much appreciated.

[@spaman5440]

You would need to call and talk to Scott.. this is above my pay grade but he will know. Thanks for Watching & SUBSCRIBING

[@spencerbeales8965]

Hi Spa Man , I have a 2019 Jacuzzi that had an FL2 code. It was the flow pressure switch number 4307p. Was able to find it on line.

[@cliffprystie1]

Changed out pressure switch because Peyton sundance tub would display FL2 code than eventually - - - code would display and no controls would work at all! Problem still persists even with filter removed! Could Flow valve cause this override?

[@spaman5440]

Check the senciers

[@dougmott1086]

My research on my jacuzzi error code _ _ _ Lead me to replace the temperature sensor. That did not fix the issue. The next item is the flow tube per the information I have read. Would you agree? The heater is shutting down but it is not over heating the water in the tub. Thanks Doug

[@ruffgirl1776]

Dude, I have the same issue. Watchdog, it’s never done this before

[@thatguysinger]

So... you must drain hot tub to replace flow switch? Thanks! love you videos!

[@spaman5440]

Some spa guys do some don't.. I drain the tub I hate getting water all over the place.. Thanks for Watching & SUBSCRIBING

[@Scansenboys]

I have mine installed but unfortunately the piece is fluttering but not making contact with the pole thing. Not sure how to correct that.

[@spaman5440]

If its new contact the dealer or manufacture. If its new and the filters are over a year old its time to replace if you stick your hand down by the left filter hole and you do not feel any suction it is probably the heat sensor or the cir Pump If you do not know the history of the spa and it is over 5 to 7 years old. Replace Filters heat sensor flow switch Cir pump Hi/Lo sensor I have other videos that show in detail how to do this Thanks for Watching & SUBSCRIBING

[@nickchaix7101]

I haven't j235 with an fl2 code flow sensor will this last me through the winter until summer. then I can drain out tub and replace sensors...

[@Reallyoldman227]

Do you have to drain or can you clamp the hoses

[@markdavis918]

Great videos. I have a er 6 error code?

[@paulyt3339]

Ok to do this with a full tub or best to empty?

[@spaman5440]

Most often I empty the tub...But you can do it with the water in the tub you just have to be really fast... and with water in the tub sometimes the heat gun does not work as good but it does help a little.. Thanks for Watching & SUBSCRIBING

[@agjura]

I'm having a fl Coro and the heater is not going on , I replaced the heater core few months back. This unit does not have a flow switch and does mot have a pressure switch. It has two sensors one one each side of the heater core. The circulating pump is new and no air lock. Filters are new. The only possible issues I could think of is the sensors on the heater core are not working. Any ideas?

[@JulieButler-k4n]

My flow switch is leaking at the screw part and not sure why. Is there anything I can do different?

[@jeffreythompson2281]

Hey spa master , houston I have a problem with fl1 code changed out temp sensor and flow switch heater turns on only when i maually push down of flow swich, do you you think it will be circulation pump and is so how can i test that?

[@spaman5440]

Its the Cir pump. Put new filters in it also All five are a complete system. Hi/Low sensor Temp sensor Flow switch Cir Pump Filters Thanks for Watching & SUBSCRIBING

[@ak23kravchuk53]

Hi spa man love the videos! I have a jacuzzi j375. And my spa is set to 104 but only goes to 88. ( heater light turns off) To back up ; my circuit board went out , got the new one replaced , pumps are all running . Could this be a temp sensor or flow switch ? Also when was trouble shooting would get the FL2 code ( when turning breaker back on , then it would go away ). I’m kinda in the dark new to jacuzzis and hot tubs in general .

[@bryanthompson4639]

I have a J-245 and have this error message. I can't find the Flow switch. Can anyone tell / show me where the flow switch is located on a J-200 or J-245 model? T IA

[@spaman5440]

Call Scott at the shop and he can help you with this.. At this time of the year he usually cleaning up his studio.. and getting ready for the New Year. Thanks for Watching & SUBSCRIBING

[@carlosferguson2603]

you are a great guy, and patient and a great teacher, I had to figure all this stuff out over years, with I would have had you .... I do have a new problem FLO. have tried all sensors/flow stitch but only works when ON schooled times , or if pump is on, not all day when needs heated . so I was wondering what if I just glue the flow with open, or even bypass it, would that HURT the spa?

[@andrewchiusolo1950]

Thanks for this informative video. I’m having two issues. The fl2 which I’ll now be able to address. And recently every two weeks the breaker kicks off. Any idea why spa guy? Tub is approximately 5-6 years old. Thanks.

[@spaman5440]

There could be several things that are causing the breaker to trip... This video might Help you. kzbin.info/www/bejne/bX_Rf2x4e8h5ebs

[@tonysanchez3290]

Hi Spa Man, wondering if you can give me some advice. I have a 2006 Sundance Cayman which had been working, but recently had a lot of problems with FL2 errors and heating. Because of its age and from your advice, I decided to just replace most components (incl., Circulation Pump, Flow Control Valve, Heat Sensor, High/Low Sensor, Heater and both Filters). It seems to work great now, but I am still plagued by an FL2 error, even after running the hose directly into the intake to flush out air bubbles. I’d appreciate your thoughts on this - and thank you for all of your videos!! In case it’s important, I’m in Groveland CA and we have average 90-100 Summers and mild Winters with occasional light snow.

[@ronrobertson9324]

Hi Scott, I love your videos. Got a question for ya: I have a Sundance Marin hot tub and I am ready to install a new flow switch. I watch one video and it says to install a 1/4" manifold plug in the bottom overflow tube, then use a drill and drill thru the manifold plug. My question for you is: Is that really necessary to do? Thanks in advance and thank you for all you do.

[@spinroyd]

Fl2 should not show when the circulating pump is running. I suspect a circuit board problem. Jucuzzi j345 has a 24 hour circulating pump so what else would be the problem.

[@steveyavorski4699]

I have a J345 Jacuzzi 2004 pro tech the watch dog safety switch came on what do you think the problem could be.

[@spaman5440]

We are going to need a lot more Info to help..If you can call and ask for Scott when you are in front of the hot tub with the front door off and he will try to help you.. Yhanks for Watching & SUBSCRIBING

[@joyhowser6068]

Getting ready to replace the flow switch, how much water is in the tubes, in case I don't drain the tub ? Is it continuous flow or will it stop after what is in the tube is gone ?

[@spaman5440]

300 + gal...If you are fast and have everything ready you can do it in less the 5 seconds...Thanks for Watching & SUBSCRIBING

[@jacobrumsey7593]

I just had the same error. My J 245 is 1 day old. I looked at the flow switch and there was a rubber gasket pushed up against the flow switch holding it in the closed direction. I took it out and cleared the code. My question is: where did the rubber gasket come from? Was it from the top end of the flow switch where the electrical is located or some other part of the water system in the hot tub? I wish I knew.

[@spaman5440]

Can you post a pic of the gasket ?

[@ruffgirl1776]

Hello Spa guy😊 I have the J340 with the foot jets. Never had a problem before but now, I’m getting the error message of “WatchDog Mode”. 😕- - - three dots. 😕 First time it’s ever done that. I think it’s because I drained it. Whipped it down then, filled it back up. It’s always worked before. 😫Oh, mine is the LED. I have so many questions.

[@JC-LACOSTA]

Hello SPA MAN. I've replaced the circulating pump and still don't have flow, pump was purchased new but I don't see the pump vibrating or trying to start. how can I test a new pump to confirm is working?

[@spaman5440]

You need to call Scott...He will tell you how to do this so you don't have any problems.. He's in the shop most days until 8 PM trying to keep up. Thanks for Watching & SUBSCRIBING

[@donaldpresley7659]

This was a great video. Very helpful. Question: can I clamp the two hose ends and avoid having to drain the tub before I install the switch? Thanks

[@spaman5440]

Depending on how old the hoses are..You can do that. I have had hoses crack in the past when I did it that way..that I just don't do it that way any more... Now if your really fast you can remove clamps and go for it (Have a shop Vac ready and you have to video it and post it..sometimes it doesn't go as planned) Hope that helps and Thanks For watching & Subscribing.

[@Nowuries01]

I keep a few wine bottle corks around and shove them in while I'm making the change. It keeps water from leaking out and on mine at least, its the perfect size. Hope that helps.

[@ruffgirl1776]

How much do flow switches cost for J340😊

[@Reallyoldman227]

I just replaced switch took out filters and still get fl1 error and Even empty and filled through the inlet

[@Jaydeeyo42]

Hey Spa Man. Is it best to drain the tub prior to changing this switch? It's currently snowing here in Illinois and I'd rather not create an ice skating rink in my yard. I see a few people using cloth and vice grips to clamp off the 3 hoses. Thoughts?

[@spaman5440]

Ok.. In your situation I would not drain and do not use vise grips to kink the hose with cold water in the tube and the cold weather outside your could crack something.. This is what I would do..#1 loosen all clamps. #2 get a heat gun or Hair dryer (So you can soften the tubing for easy removal) #3 Get a wet/dry shop vac to clean up any water #4 use a pliers to twist hose and loosen hose along with heat gun.... but do not remove hoses until all are loose..#5 once all hoses are loose and tubing is kinda soft... Take a deep breath and Go Man Go...Ive done it this way many time for a lot of the same reasons.. Hope this helps and Thanks for Watching & Subscribing.

[@Jaydeeyo42]

@@spaman5440 I appreciate your help so much. Just a side note, The spa is still heating and water is at about 85 degrees. Pumps move water as normal but I am getting the FL0 or FL1 code. Can't remember which one. I will still follow your suggestions as I'm not afraid of a little water and I really don't want to have to drain. Thanks again for the quick response.

[@spaman5440]

@@Jaydeeyo42 You might want to do a really good filter cleaning or if they are older then a year ? Replace them.

[@Jaydeeyo42]

@@spaman5440 👍 and done!

[@spaman5440]

@@Jaydeeyo42 Way ta Go ..Good For You .

[@michaelnebelski9499]

Like your videos. Very informative ! Thanks

[@spaman5440]

Thank You so much.I really like helping others. Thanks for Watching & SUBSCRIBING

[@thewildgoose2000]

Jacuzzi Platinum. FLO error code. Circ pump (new) turns on for 3 seconds on power up then the system shuts down -- FLO code on topside. Jumpered flow switch pins in circuit board so as to sleuth, still shuts down after 3 seconds circ, then FLO error code again. Help please!

[@deivimejia7743]

Hello, I have a sundance spas 750 or 850, and does not heat and stared to leak in the heater, I I do not know if you can help me, but if you can I will appreciate it, my problem is, that my spa started to leak from the heater and not heat since before that. and it says FLO and I really don't know how to fix it, I hope and can help me.

[@spaman5440]

ok ..first things first ... We need to know if the heater is any good or not. #2 we need to know if the circulation pump is working and #3 we need to know if the Flow switch is working.. depending on the age of all of this you have to replace all three.. If you are lost you can call me at the shop and Ill help you figure out witch way to go.You can also watch my other videos dealing with heat and flow issues....Sundance and Jacuzzi are almost the same to fix.

[@jessicalittle9517]

Hi have this same hottub but i have a leak and it seems to be coming from the black box located between the circulatimg pump and the back of the electrical box any suggestions??

[@spaman5440]

If it is coming from what I think it is ? It will be the heater and its not a hard job to replace.. it just take some time to remove everything so you can get ar it to fix it.. Take lots of pictures with your phone so you remember how it goes back together...Hope that helps.. Thanks for Watching & SUBSCRIBING.

[@jessicalittle9517]

@@spaman5440 ok thank you I will see what I can find and let you know I really appreciate it

[@jessicalittle9517]

Ok I believe it is possibly cracked do you have a video on how I go about changing it and what heater I need to order? I am absolutely in the dark here sorry?😬

[@jessicalittle9517]

Okay I believe that the heater is possibly cracked do you have a video on how to change that and what part number I possibly need I'm sorry I'm really in the dark here😬

[@jessicalittle9517]

Spa man...Thank you for the video I am looking for a heater to order to replace it but was curious if any jacuzzi j series heater would work?

[@donwassmuth8896]

I don't use mine in the wintertime, so I turn it down to 70 degrees, however, this last fall I had a hard time getting it to change even though it says that on the display, After several attempts it did go down. This spring I turned off the power to see if it would reset itself. That is when the FL-2 showed up. Nothing started up, so I watched your video and went back outside only to find that the hot tub would start and heat, but the flow error is still there. I took the side cover off, but there is no flow switch anywhere?? And I can change the heat setting, but the water temp does not change. Would this mean a heat sensor is bad?

[@donwassmuth8896]

I turned it off again and restarted it. The heater and jets turned back on and the error went away. But it will not change the temperature or change the time that it heats???

[@markdoyle3817]

5n3,what code is that.Jacuzzi model j355

[@spaman5440]

it is referred to as SN3 and that is a sensor that is loose or faulty or not working... check all of your connections.

[@spaman5440]

What is the Spa doing or not doing ?

[@alanrubin6386]

Now, why couldn’t the manual tell us this. The error said “consult the owner’s manual” which I did and it told me nothing.

[@mgnorthern783]

Hi Spa Man. I am getting an FL-1 error, malfunctioning open, on my old j-270. The outside temperature where I am is way below freezing (-13 f) and the water temperature in the tub is below the usual setting. When I turn on the main pump 1 the fl-1 error goes away and the heater turns on. Turning on pump 2 does not cause the fl-1 to go away. As soon as pump1 turns off the fl-1 error comes back and the heater turns off. My tub has a circulation pump but it doesn't sound like it's running. Is this an indication of a bad circulation pump or a bad flow switch? Or both? What does the flow switch control? Will my tub survive the winter without being drained if the circulation pump is bad? I have tried turning off the power and then turning it back on and it still shows the error. Is there a fail safe that turns on the main pumps occasionally? Thank you.

[@spaman5440]

I would replace both the circulation pump and the flow switch.

[@HappyOnGuitar]

Thanks for the video SPA MAN! I was getting a FLO error, and my ozone bubbles were on and off every few seconds. After watching your video I was able to replace the flow switch. I'm still getting a FLO error, and ozone bubbles are still on and off every few seconds. I can hear the circulator pump click on and I can see the flow switch start to close. But the switch never fully closes, and after a few seconds the pump clicks off. This repeats over and over. I tried temporarily removing the filter to see if flow would increase and fully close the flow switch, but that didn't work. What else should I check? Is my circulation pump worn out? The hot tub is 15 years old. Thanks SPA MAN!!!

[@HappyOnGuitar]

Turns out I needed to replace the circulation pump. Once I put the new pump in, it was very obvious that the old pump was not moving water as fast as it should have.

[@barbararupp8814]

You are awesome. Thanks so much.....

[@huguesl73]

Hi Spa Man! Great video. I have a J-275 that gives me an FL2 every single time I cut the power or when there is a power outage. The filter is clean, the water level is fine. The only way to resolve the issue is to empty the spa and fill it up. Then magically the error message is gone. Do you have an idea of what is going on? Thanks!

[@trevordoeshalloween5994]

Air trapped somewhere in the plumbing probably.

[@MrWeller32]

Hey spa man...I just replaced my circulation pump on a j335 jacuzzi. I’m getting an FL2 error code. As my circulation pump is coming on and off intermittently. When the heat kicks on the circulation pump works for about 30 minutes then I watched as it shuts off and then I can see the two flaps separate inside the flow switch. Do I need to replace the flow switch or perhaps the filters? The filters are cleaned regularly every 6 months but I’ve had the same ones for 5 years. I’m sure the flow switch is older than 5 years as well. I just want to avoid spending extra money. Any advice?

[@spaman5440]

Ok..when I replace a circulation pump I also replace the Flow Switch and the Heat Sensor at the same time...The reason why is I already have it apart and it saves time and money ( I Find that you get about 5 to 7 years out of them depending on how often the water is changed , filters are cleaned and so on)I also replace filters after a year or so.. Hope this Helps ... Thanks for Watching & SUBSCRIBING.

[@MrWeller32]

Thank you... I appreciate your advice.

[@spaman5440]

@@MrWeller32 You are on the right path.. Let me know how it turns out.

[@alisharivers3150]

Good job

[@johnniewilliams8088]

My tub says _ _ F

[@WilliamFarner-d5n]

Flashing F1