What is a high limit switch on a hot tub?

What is the High Limit Switch? The high limit switch is a safety feature that keeps hot tubs from overheating. If it senses that the spa water has reached 110 or 120 degrees, the switch trips and your heater (and often the pump, too) turns off.

A limit switch will be located in your heater enclosure, mostly in its lower left corner. It is usually white in color with a red button at the center. If your water is not heating up and you think the heater is the problem, one heater element that you need to check out will be the limit switch.

Beside above, how much will a hot tub raise your electric bill? In general, owners of hot tubs from Hot SpringĀ® Spas report an increase in their electric bill of just $10 to $20 per month.

Also, how full does a hot tub have to be to turn it on?

Look for the hot tub filter, normally located on the side of the tub. Fill the hot tub with water to about 2 to 3 inches above the top of the filter. Do not fill the hot tub above this level. As the jets are turned on and people get inside the hot tub, the water level will naturally rise.

Does a hot tub use a lot of electricity?

An average sized hot tub will hold approximately 250 gallons of water, however, larger models can hold up to 500 gallons. The more water that is in your hot tub, the more electricity usage it will require to keep the water heated.

What causes a high limit switch to trip?

When a high limit switch gets tripped due to overheating, that contributes to wearing out the switch faster. One of the most common causes of furnace overheating is a clogged furnace filter.

How do I reset my hot tub control panel?

How to Reset a Spa Heater Locate the spa’s high-limit reset. This is a red button found on many spa packs. Press the high-limit reset button. Turn on your spa and observe its operation. Flip the breaker panel switch on or press the reset button on the GFCI outlet to restore power.

How do you fix a hot tub that overheats?

How to Stop a Hot Tub From Overheating Turn off all power to the hot tub as soon as you realize it is overheating. Call your hot tub dealer or manufacturer for service options. Check the water level of the hot tub. Check the shut-off valves in the hot tub. Clean the hot tub filter.

How do you reset a high limit switch?

How to Reset a Furnace Limit Switch Locate your furnace’s heating duct. Locate the white limit switch. Look at each arm to identify the settings. Identify the component (setting) located in between the two arms. Set the temperature on the middle component to approximately 105 to 115 degrees Fahrenheit.

How do I reset the high limit switch on my hot tub?

Simply reset by pressing the big red button on your spa pack. The high limit switch may be housed in a thermowell. If the water temperature in the thermowell is the same as the water temperature in the rest of the spa, the switch is damaged and needs to be replaced.

What does HL mean on hot tub display?

system shut the heater down

What temperature should I keep my hot tub when not in use?

What is the right hot tub temperature when not in use? A rule of thumb is that the temperature should be at least 5 degrees lower than when in use. It is necessary to keep it at lower temperatures when it’s not in use so that energy consumption isn’t too high.

Should Jets be on when heating hot tub?

Heating your spa, with the spa cover on, will raise the water temperature at a faster rate than heating without the spa cover. Do not run the jets when your spa is either heating up or is not in use: The air generated from the jets cools the temperature in the water.

Should I leave my hot tub on all the time?

Yes, you should leave your hot tub on all of the time. Hot tubs are designed to always be switched on and it’s more economical to keep the water hot than it is to heat it up from cold each time you want to use it.

Can you fill a hot tub with cold water?

Yes, you can fill a hot tub with warm water but it’s not generally recommended. It’s a much safer idea to fill up with cold and then let the hot tub heat it up.

How long do hot tubs last?

A hot tub can last anywhere from 5-20 years or more. Cheaper hot tubs made with lower quality materials won’t last long. If those hot tubs are not well maintained, they may not last more than 5 years.

Can you test a hot tub without water?

Hot Tub Running without Water. You did not say what spa you have, so it’s hard to tell if any damage was done. Most spas have an over-temperature sensor that turns them off if the heater is on but the circulator pump is not running, but this relies on the spa being filled with water. This means no water flow no heat.