Is your hot tub heater not working properly or does your hot tub heat up only to cool down again? Here are 3 common hot tub heater problems and hot tub heater troubleshooting tips.
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⏰ Timestamps:
00:00 - Introduction to Hot Tub Heater Troubleshooting
00:16 - Problem #1: Hot Tub Isn't Staying Hot
00:55 - Problem #2: Hot Tub Temperature Fluctuates
01:25 - Problem #3: Hot Tub Isn't Heating At All
01:57 - How To Replace Your Hot Tub Heating Element
02:34 - How To Maintain Your Hot Tub Heating Element
03:16 - When To Call A Professional
03:36 - Hot Tub Care Video Course
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Swim University®️ has made swimming pool and hot tub care easy for more than 10 million homeowners. And each year, we continue to help more people with water chemistry, cleaning, and troubleshooting. We know taking care of a swimming pool or spa can be difficult. And it’s hard to find a trusted source of information. We get it! This is the reason we created Swim University®️.
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There's nothing worse than stepping into a cold hot tub, and if your hot tub isn't heating properly, it's likely one of the three common hot tub heater problems check it out problem number one: your hot tub isn't staying hot. If your hot tub heats up, it then seems to cool down just like a regular bath. The first thing is to check the filter, make sure the filter isn't clogged and if you find debris clear it out and give it a good cleaning. If the filter isn't the problem check the thermostat and heat sensors, electrical components can sometimes burn out or go bad and will need to be replaced then, finally check the spa's circulation.

If the plumbing is clogged and the water can't circulate properly, it will begin to gradually cool down after it's been heated. If this is the case, you'll need to drain and clean your hot tub, using a lime flush product to clear the plumbing problem. Number two: your hot tub temperature fluctuates okay, so you turn on your hot tub and the water is warm when you get in, but then five minutes later you're shivering, because the temperature has mysteriously dropped, then it heats up again only to turn so hot that you Feel like you're cooking fluctuating temperatures are usually caused by a temperature sensor that has started to die. If the sensor is in good working order, it may be the thermostat or your heat sensors, whichever one is.

The problem it'll have to be replaced problem number three, your hot tub isn't heating at all. You turn on your hot tub and you wait a little while for it to heat up then step into room temperature, water or, worse, it's ice cold. This can be caused by low flow from your hot tub pump and, if that's the problem, you'll have to replace the pump. The lack of heat may also be due to a bad heating element when a heating element goes bad, there's no fixing it again.

You'll have to replace it, but luckily heating elements aren't expensive and they're not too difficult to replace here's. How to replace your hot tub heating element now remember before you begin any kind of work on your hot tub. Please disconnect all power leading to it number one locate the heating element assembly inside your hot tub cabinet 2 disconnect the electrical wires 3. Remove the heating element 4 place a new heating element in the now empty space, 5.

reconnect the electrical wires and six test. The element by setting your hot tub to the usual soaking temperature and waiting the appropriate amount of time for it to heat up, depending on your current water temperature and ambient temperature. Now you can also save yourself some money and time by keeping your hot tub heater element in good condition, with regular maintenance number one. Keep the water balanced, balanced water chemistry can help prevent corrosion inside your hot tub and extend the life of your heating element and hot tub.

Heater number two: keep air out of the system after every maintenance session be sure to flush all the air out of your system. Air in the lines can lead to the heating assembly's premature failure. Number three clean: the filter regularly clog filters can prevent water from properly flowing to the heater, which can eventually cause the heating element inside to burn out check your filter regularly and clean and replace it whenever necessary. And finally, if you're not sure of what the issue is and you're not comfortable with replacing any of your hot tub parts, it's best to call in a professional.
Remember: water and electricity do not mix. So if you're, not confident in your repair abilities - or you simply cannot identify the problem, it's better to have a pro come in and take a look for you. If you're looking for more help, troubleshooting your hot tub go check out our hot tub care video course. You'll, get in-depth video lessons, plus a step-by-step downloadable guide, covering everything that you need to know about: hot tub maintenance, it's packed with money, saving tips, so you can save money and time keeping your hot tub clean.

This is the ultimate manual for every type of hot tub. The best part is we always keep it up to date, so once you buy it, you have access to the latest and greatest version for life. That's swimuniversity.com, spa and use the promo code. Video, if you missed anything or have any questions, please leave a comment to.

Let us know hit the like button below if you found this video helpful and if you want to learn more about hot tub, maintenance and troubleshooting subscribe to our channel for more videos like this one and check out the hot tub handbook and video course at swimuniversity.com. Spa don't forget to enter that promo code video to get 10 off. That's it thanks again and happy soaking.

7 thoughts on “Hot tub heater not working? 3 common problems | swim university”
  1. Avataaar/Circle Created with python_avatars Greg Killeen says:

    Sure this is the wrong video but if the blower is bad would it cause the panel to not work?

  2. Avataaar/Circle Created with python_avatars awoonga56 says:

    I've got a Chinese control panel Ethink KL8-3A, everything works fine except the temp is set for 98 degrees but will only heat to 89 degrees then starts cooling down and heater will not kick in again, I have to turn it off until temp drops below 77 degrees then heater will work again any clues. Have checked water flow, filter, air locks, thermostat etc…… all good.

  3. Avataaar/Circle Created with python_avatars Jimmy VanZeno says:

    My spa seems to be overheating….I set it on 38.5c and leave it and I come back a couple of hours later and the temp is 40c

  4. Avataaar/Circle Created with python_avatars Lou Red Devil says:

    Is there a way of diagnosing the issue?

  5. Avataaar/Circle Created with python_avatars Prenta Ivanovic says:

    Just got it .. it heated up then nothing Service area Nepean??

  6. Avataaar/Circle Created with python_avatars Daniel Skinner says:

    Great video as always buddy

  7. Avataaar/Circle Created with python_avatars william Rizzo says:

    Luckily it's 80 degrees this morning or I live in the Florida Keys so the heater doesn't have to work too hard.

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