Knowledge Builders

why is my hot tub getting too hot

by Dr. Deshaun Swaniawski Published 2 years ago Updated 2 years ago
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  • Check for scale buildup on the unit – this is common if you have hard water.
  • Check for a short in the coating on the heating element.
  • Check with an ohm-meter if you have a newer spa that has the heater element encased in a stainless tube – look for a short or open reading to indicate ...

When the pump runs, it generates heat. This heat transfers into the tub water, increasing the temperature. So, if the hot tub is set to filter too many hours per day, it can cause overheating. Adjust your filter cycle duration cycle down and set it to run early AM and late PM, when the outside temperatures are coolest.

Full Answer

Why is my hot tub heater over heating?

Low water levels could be the culprit for the over heating, so you may just need to add more water to the hot tub. Check the shut-off valves in the hot tub. If they are closed while the hot tub heater is on, it could cause the water to reach unsafe temperatures.

How do you fix a hot tub that is too hot?

Check the water level of the hot tub. Low water levels could be the culprit for the over heating, so you may just need to add more water to the hot tub. Check the shut-off valves in the hot tub. If they are closed while the hot tub heater is on, it could cause the water to reach unsafe temperatures.

What happens if you lower the temperature in a hot tub?

Lowering the temperature your hot tub is set to can help prevent the outside temperature from heating your water above where you want it to be. Be careful not to lower it too much or your water may be at a lower temperature than you want it to be later in the evenings after the spa cools off from the day’s heat.

Do hot tubs get hot when it’s Hot?

A hot tub is designed such that it can retain most heat to save on energy bills. You may notice some temperature rise in your hot tub during warmer weather, but you need not worry about it. Temperature creeps happen because the excess heat in your hot tub has no way of escaping.

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How do I stop my hot tub from overheating?

Add some shade.Turn Down the Temperature. The most straightforward solution to hot tub overheating is to simply turn down the temperature of your hot tub. ... Add Cool Water. ... Don't Run Your Filter When It's Hot. ... Add Some Shade.

What happens if your hot tub is too hot?

Hot Tub temperatures above 104° can raise the internal body temperature too high, and can progress from feeling light-headed or dizzy, to fainting or passing-out. Losing consciousness while using a spa or hot tub can lead to drowning, of course.

Why is my Jacuzzi hot tub hot?

Print. If your Spa is going over the maximum temperature limit of 104 Fahrenheit degrees or over the set temperature, is most likely because the Pump has been running for extended periods of time, which might be due to 2 main reasons: Extended Filtration Cycles settings. A fault within the Control System.

Why will my hot tub not cool down?

While a hot tub temperature panel typically allows you to bump it down to 60° F, when it's warm outside, the actual water temp will never get that cool. Cool it down further by switching the hot tub mode to sleep or economy mode, and consider buying a hot tub chiller if you live in an unseasonably warm area.

Why is my master spa overheating?

Water getting too hot. Heat fluctuating – often caused by an errant heat sensor that is due for replacement, though this symptom can also be cause by a clogged filter or faulty thermostat.

How do I keep my hot tub cool?

5 Tips to Stay Cool in Your Hot TubLower the Water Temperature. Your hot tub temperature usually hovers around 100 degrees, so dial down the temperature to 85 degrees to cool off the water. ... Stay Hydrated. ... Apply a Cold Compress. ... Soak in the Shade. ... Wait Until Sundown.

What is the fastest way to cool a hot tub?

Simply lower the temperature of your hot tub to roughly 85°F or turn off your heater altogether. Leaving your air jets running will help circulate the cool water throughout your hot tub quickly and efficiently.

How do you test a hot tub thermostat?

How do you test a hot tub temperature sensor?Shut off the hot tub's power at the disconnect panel.Set the Ohm meter to 20,000.Find the end of the sensor wire.Unplug the sensor wire from the control box.Next, place the leads of your Ohm meter onto the red & green wires.Compare the readings to a Thermistor Resistance vs.

Where is the temperature sensor on my hot tub?

On most hot tubs, this sensor is located just inside of the filter housing. The temperature probe should be pushed down securely into the thermowell, and the capillary should not have any kinks. A faulty thermostat is one of the most common reasons for hot tub temperatures to bounce around.

How do I lower the temperature on my lazy spa?

3:448:12Lay Z Spa Operating Instructions for Lay Z Spa Control Panel - YouTubeYouTubeStart of suggested clipEnd of suggested clipInside the pump unit to set the desired. Temperature. Press either button. And it will flash the setMoreInside the pump unit to set the desired. Temperature. Press either button. And it will flash the set temperature. And then simply adjust the temperature. Up or down.

Should I leave my hot tub jets on all the time?

One of the most common questions our team gets asked is "should I leave my hot tub on all the time?" Quite simply, the answer is yes... your hot tub is designed to be left switched on constantly and works best when it is left on all the time. Your hot tub is at it's most efficient if left to run 24/7.

How long should a spa pump run per day?

eight hours per daySince your hot tub pump circulates the warm water as well as the sanitizer, a general rule is to follow manufacturer recommendations or leave the pump on for a minimum of eight hours per day.

How does the Arctic Spa work?

So the first thing to remember is that the Arctic Spa is designed to utilize the excess heat from the motors to heat the water. So as we go through that filtration cycle, that motor is going to be running and it’s gonna be generating heat.

Can you run an Arctic spa at 100 degrees?

The other thing to keep in mind is that the Arctic Spa’s really designed to run at 100 degrees or above. So if you’re trying to run it down into the 90 degree range, the Arctic Spa just is simply not designed to be able to maintain that temperature, especially when it’s 100 degrees outside, or something like that.

How to keep a spa from getting too hot?

Here are three suggestions to help keep your spa from getting too hot in the summer. 1. Lower The Temperature Settings.

How to keep hot tub water warm?

1. Lower The Temperature Settings. Lowering the temperature your hot tub is set to can help prevent the outside temperature from heating your water above where you want it to be. Be careful not to lower it too much or your water may be at a lower temperature than you want it to be later in the evenings after the spa cools off from the day’s heat. 2.

What temperature should a hot tub be?

In some areas, the summer heat can cause the hot tub to go above the maximum recommended temperature of 104 degrees Fahrenheit (F)/ 40 degrees Celsius (C). The heat of a hot tub is where most of the benefits come from. However there is such a thing as too hot for a hot tub.

How to keep a spa from overheating?

Providing shade will help keep your spa from overheating as it reduces the amount of extra heat the spa absorbs from the sunlight. There are several options that vary in price that can help accomplish this.

How to put dish towels under spa cover?

Lift the side flap of the cover nearest to the fold of the cover and wrap it under the cover. (Be sure as much of the rest of the side flap is down against the side of the spa to prevent leaves and dust from getting in.) Place the rolled up dish towels under the cover to create a wedge between the spa and the cover (Shown Below).

Step 1

Turn off all power to the hot tub as soon as you realize it is overheating. The spa should have an automatic shut off when the water temperature reaches about 112 degrees fahrenheit.

Step 2

Call your hot tub dealer or manufacturer for service options. There are a variety of conditions that could lead to the overheating of your hot tub, but may differ in various hot tub models and brands.

Step 3

Check the water level of the hot tub. Low water levels could be the culprit for the over heating, so you may just need to add more water to the hot tub.

Step 4

Check the shut-off valves in the hot tub. If they are closed while the hot tub heater is on, it could cause the water to reach unsafe temperatures.

Step 5

Clean the hot tub filter. A dirty filter could be blocking the flow of water, causing the water to sit in the hot tub and overheat.

Step 6

Turn the power back on after finding the problem and talking to the hot tub dealer. The hot tub will probably not start back up until the water reaches a safe temperature.

Why does my hot tub pump overheat?

Your hot tub pump can overheat if there’s a blockage caused by debris on the pipes or valves. The blockage could make your pump work extra hard to heat the water, making it extra hot. The pump may also overheat if it’s situated in a tiny space where it doesn’t get enough cool air.

What temperature can cause hypothermia in a hot tub?

Temperatures above 104 degrees Fahrenheit can give you hot tub hypothermia. Hot tub hypothermia takes place in several stages. It starts as heat fatigue, then becomes heat exhaustion, and finally heat stroke. While you’re in the hot tub, you may not notice the temperatures increasing.

Why is my spa pump not working?

The other reason why your pump could not be pumping is an inadequate water level. If the water level is low, the skimmer may suck in air, causing a blockage. The solution to this problem is filling the hot tub with water until it reaches the middle of the skimmer opening. Lastly, your spa pump may fail if there is a blockage.

Why does my hot tub creep?

Temperature creeps happen because the excess heat in your hot tub has no way of escaping. Here are some ways you can lower the temperatures in the hot tub. Control panel. You can manually reduce the temperature to about 85 degrees Fahrenheit whenever it’s too hot to bear.

How to lower temperature in hot tub?

Another effective way to lower temperatures in the hot tub is placing a shade above it. If you cannot move the spa to a place with shade, you can have an umbrella or roofing over the hot tub. Open the air vents. Hot tubs have air vents that can close or open depending on the weather.

How to release air in hot tub?

To release the air, slowly loosen the union being careful so that the o-ring doesn’t pop out of place. As the air escapes, you’ll hear a hissing sound. Finally, tighten the union before water starts escaping. Spa pump only high speed.

Why is my pool pump overheating?

Friction. Just like any moving part, friction is bound to occur in different parts of your pool pump. Too much friction generates heat which may lead to overheating.

How hot should a hot tub be?

However, most people who have a hot tub keep it in a range between 100°-the max of 104° Fahrenheit. This number varies depending on any health conditions, age, or pregnancy restrictions.

What is the temperature of a hot tub?

The Hot Tub Standard: 104°. Most all modern hot tubs come programmed to have a high-limit of 104° Fahrenheit, although they have the ability to run as low as 80°. The National Spa and Pool Institute considers 104° to be the maximum temperature that is considered safe for adult use therefore, spa controls have a limit that is set to keep water ...

Is a thermal blanket good for a hot tub?

A hot tub with a thermal blanket and well-sealing hot tub cover does a good job of maintaining its temperature; it’s the constant raising and lowering that is going to be a drain of energy. In addition, this puts strain on your heating element and the circuit board.

Does turning down the hot tub save energy?

Unless you will be away for an extended period of time (summer, etc.), turning down the hot tub will save little to no energy. Having a good spa cover that is well-insulated will keep your costs down and heat sealed in.

Can children drink too hot water?

While that’s typically a liability issue for the establishment, there is some truth to it. Children are less able to endure acute temperature changes and can become dehydrated in too-hot water rather quickly. Much like the guideline for pregnant women, most children should not get into water that is over 100° F.

Can pregnant women use hot tubs?

PREGNANT WOMEN are also cautioned to be very careful in the hot tub during gestation, particularly during the first trimester. High external temperatures for extended periods of time lead to problems with the fetus, resulting most commonly in neural tube defects.

Why is my hot tub not heating?

If you have low water in your hot tub, this can cause the water not to be heated effectively. Keep an eye on your water level and make sure to add water when needed.

What happens if you get the wrong cover on a hot tub?

If you get the wrong cover, it could lead to heat loss.

Why is it important to maintain a hot tub?

Proper maintenance of your hot tub is imperative so that it works correctly and efficiently. If your hot tub is taking too long to heat, there could be several things causing it to have issues.

What to do if your hot tub thermostat is broken?

If you suspect that the thermostat is broken, you will need to call for a repair to repair or replace the thermostat.

Why is my hot tub heater not working?

Your hot tub heater may be faulty or tripped the high limit switch which can be caused by clogged filters or blockage preventing water from flowing through the heater . Additionally, the thermostat may be faulty, and sometimes rodents even chew threw wires under your hot tub, preventing the heater from working properly.

What are the problems with a hot tub?

We’ll review all the common problems. Those include clogged and blockages. But they can also include faulty heater elements or thermostats. More information that you may need can be found below, so you can get your hot tub back up and running properly.

What happens if your hot tub heater is not heating up?

If it is not warming up for you still, then your heating element is probably bad.

What to do if you don't have power to your hot tub?

Reset the breaker – If this happens to be the case and you do not have any power, you need to flip the breaker panel switch back on or press the reset button on the GFCI outlet to fix it. Then turn the hot tub back on.

What to do if your thermostat has a red arrow?

If your thermostat has a red arrow, you need to check the cord for damage and make sure it is plugged in properly. Most hot tubs have a knob on the control unit under the hot tub which leads to the digital topside panel. So you’ll want to look at the control unit behind your tub’s panel. Hot tub cover replacement.

How hot can a hot tub get?

All modern hot tubs are set to allow a maximum of 104° F.

Why is my water heater not shutting off?

If broken, the water can end up being scalding hot and the heater will not shut off. This is usually caused by a dirty water filter. Other causes can be clogged pumps, closed valves, or blocked drains. If your thermostat has a knob, you can test to see if it is broken inside or if the sensor bulb is corroded.

What happens if your water heater element is faulty?

Electric water heaters may be equipped with either one or two heating elements. If a heating element begins to ground out , it will stay on all the time and overheat drastically. Not surprisingly, the result will be painfully hot water – and that’s just for starters. With time, the heater element will burn itself out completely. Then you’ll have no hot water at all until the element is replaced.

What is hard water in a water heater?

Hard water, such as the water supplied by Ottawa’s municipal well systems, contains a high proportion of dissolved minerals, particularly calcium and magnesium. In terms of your hot water heater, hard water in your home plumbing will lead to calcium build-up on the inside of the tank.

What to do if your water heater is getting on?

If your water heater is getting on in years and requires frequent expensive repairs, it might be time to shop for a replacement. Look for a new water heater that will be energy efficient and optimally sized for your family.

Is water temperature dangerous?

This is especially hazardous to family members who may be insensitive to pain and to young children, whose skin will scald four times as fast as adults’ will. Second, a water temperature that is suddenly much higher than usual is a warning sign.

Is it bad to have hot water coming out of your shower?

First, unexpectedly hot water coming out of your faucet or showerhead can cause serious scald burns. This is especially hazardous to family members who may be insensitive to pain and to young children, whose skin will scald four times as ...

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