Repairing Guides

how to repair a hot tub heater

by Elinor Beier Published 3 years ago Updated 2 years ago
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How to fix it:

  • Turn off the hot tub power.
  • The valves have 4 bolts you’ll need to remove with a wrench in order to take the two halves apart.
  • Inspect the gasket. It’s most likely compromised in some way.
  • Replace the gasket with a new one.
  • Put the two halves back together and tighten the bolts.
  • Run the water and check to ensure the leak is gone.

Full Answer

How to replace a hot tub heater?

These last about 5 years before developing significant issues such as:

  • Broken or burnt-looking spots.
  • Improper water chemistry.
  • Failing to heat the water.
  • Digital programmer not working.

How do you replace hot tub heating element?

  • Turn off the power to your hot tub at the breaker
  • Find your hot tub’s red high limit reset button, which may be on the heater itself covered by rubber. ...
  • Next, press the red reset button, which will make a clicking sound when it has been reset.

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How do you heat a hot tub?

How do you heat an inflatable hot tub? Fill Your Inflatable Hot Tub With Hot Water It's usually cheaper to do this than to fill it with cold water and then heat it up to your target temperature. If you do follow this tip, then keep in mind these points: cover the floor of the hot tub with a thin layer of cold water before adding the hot water.

Why is hot tub heating slowly?

This can be due to many factors, including the following:

  • High limit switch problems This is a safety feature that prevents your heater from overheating or having a meltdown. ...
  • Having a low flow from the water This is usually caused by a dirty water filter. ...
  • Thermostat issues If your thermostat has a knob, you can test to see if it is broken inside or if the sensor bulb is corroded. ...

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Can you fix a hot tub heater?

It could be the heater unit or the heater controls. It could be repairable but should your spa equipment be more than 8 years old, it may be advisable to simply replace the whole spa pack. Majority of spa heaters are built into the spa controller. This means they have a heater element that is easy to replace.

How do you fix a hot tub that won't heat up?

0:094:40HOT TUB Heater Not Working? 3 Common Problems | Swim UniversityYouTubeStart of suggested clipEnd of suggested clipMake sure the filter isn't clogged. And if you find debris clear it out and give it a good cleaning.MoreMake 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.

How do I know if my hot tub heater is bad?

To test if a bad heater is causing your tripped breaker, you can disconnect the copper tabs (or wires) from the spa pack to the heater element. Once disconnected, turn the power back on. If the breaker stays on, you've determined that the heater is bad.

What causes heater to stop working in spa?

Low flow in your spa or hot tub is most commonly associated with a dirty spa filter. If your spa heater won't heat, remove and clean the filter(s) to rule out a pressure or flow rate problem. Low water level, a clogged pump impeller, closed valves, clogged pipes, or blocked spa drain covers can also cause flow issues.

How much does it cost to replace a heating element in a hot tub?

How Much Does It Cost to Replace a Heater in a Hot Tub? Hot tub heater replacement cost ranges from $225 to $650, including $150 to $500 for the heating element.

How long do hot tub heaters last?

Will good water balance and monthly testing with your professional hot tub dealer, Hot tub heaters can last a long time. The average life of a hot tub heater is about 5 years.

Where is the reset button on a hot tub heater?

1:192:01How to RESET your HOT TUB - YouTubeYouTubeStart of suggested clipEnd of suggested clipGo over to your breaker panel. And flip your breaker or breakers. Down there are some hot tubs thatMoreGo over to your breaker panel. And flip your breaker or breakers. Down there are some hot tubs that have two breakers. And some hot tubs that have one breaker. But you will go to your sub panel.

Is there a reset button on a hot tub?

Most hot tubs are fitted with a reset button in the event of overheating or a power surge. The button is typically located on the side of the control box behind the hot tub's removable panel on the front side.

How do you test a hot tub heating element?

To test hot tub heating elements for integrity, use an ohm meter on its lowest setting. With the meter's test leads, measure the resistance between the two element terminals. The acceptable resistance range for most heaters is between 9-12Ω (ohms), some may be as high as 20Ω.

Does hot tub heat up faster with jets on?

Before covering your hot tub, make sure to turn on the jets as this will accelerate the pace of your hot tub's heating. By running the jets, you're allowing the heated water to be circulated and evenly distributed to all areas of the hot tub.

How do you get rid of an airlock in a hot tub?

1:185:31How To Fix A HOT TUB Air Lock FAST | Swim University - YouTubeYouTubeStart of suggested clipEnd of suggested clipStep number one find the priming mode on your spa's control panel if you don't have that you canMoreStep number one find the priming mode on your spa's control panel if you don't have that you can still use this method step number two turn the jets on low for 10 to 20 seconds.

Why is there no buzz on my heater?

There should be no buzz and no current going across whatsoever because you don’t want power going into the ground. You can also check any of your power leads and know that there’s no current than can pass from one of the power leads to the ground, so that’s sitting fine. Alright, we’re gonna plug the heater back in.

What is the tapered thread on a pressure switch?

It’s a tapered pipe thread on both sides so you can put a bit of Teflon tape, but if you just continue to tighten it as you tighten it, it will actually become a tighter fitting.

Can you change the heater without taking the pack out?

So, we’re gonna go over replacing the heater. Heater is sitting behind this pack, and it’s possible to change the heater without taking the pack out, but for filming reasons we’re going to remove the pack so you can have a better visual.

How long does it take to fix a hot tub?

So, you should drain the hot tub, wipe down shell with a cloth to remove the residue of Fix A Lot immediately. Wait 3-5 days before refill the hot tub, in most case it can fix your hot tub. Before starting to find out the leak in the hot tub make sure you disconnect all the power.

How much does it cost to replace a hot tub light?

To replace the broken hot tub lights with the new ones, the price that you will spend can range from $15 to $70. You can install the lights easily without hiring a professional. But, if you are eager to pay a professional electrician, it can cost around $150 to pay the components and the labor.

Why is my hot tub pump leaking?

It can be the source of the leaks even for a brand new hot tub due to the vibration during shipment.

What is the hot tub shell made of?

The most recent hot tub shell is made of fiberglass and other layers which can cause a problem with one of the jets and another component if there is a leak in the shell.

What happens if your hot tub jets break?

Hot Tub Jets. When you have your hot tub jets broken, the problems that may occur are like the low water pressure, hard water, and rigid jets move. Handling this problem all by yourself may not be a wise idea since you will need a hot tub pro just to determine the source of the problem itself.

What to do if you can't find a leak?

If you can’t find the leak after inspecting all the component, and the component seems to be fine, you can try another method. For example, if you can find the leak because it is too small, put small amounts of dark-colored dye (or you can try food coloring) in the water and looks were where the leaks come from.

How many gallons of 80z fix a leak?

Use 80z Fix-A-Leak per 1000 gallons to fix small leaks. Use the second bottle for a larger a larger leaks.

Why do you cover a hot tub?

Always keep your hot tub covered when not in use to keep debris out and to more efficiently maintain water temperature.

How to remove scale from hot tub?

To remove the scale, drain the spa water, scrub off the scale, refill the spa, and balance the water. Contact your dealer for tips on how to prevent future scale buildup. Remember to exercise caution when attending to your hot tub’s mechanical and electrical parts.

How do I keep my spa in tip top shape?

Follow these tips to keep your home spa in tip-top shape and to minimize the time and cost of repairs. Rinse the underside of your hot tub cover frequently with a garden hose to keep algae, mold, and mildew at bay. Rinse your filters every month to keep clear water flowing. (TRI-X ® filters are dishwasher-safe.)

Why do you need a hot spring spa?

Hot Spring spas are designed to make it easy for you to monitor water quality, clean the filters, and protect your spa from the elements.

How to remove scum from a spa?

Wipe the scum off with a clean rag; if the layer of scum is heavy, drain the spa and use a spa surface and tile cleaner to remove the scum before refilling the spa. Contact your dealer for cleaning recommendations and tips to prevent future buildup. Algae growth. High pH.

What causes a spa filter to be dirty?

Filters are dirty. Excessive buildup of oils and organic matter. Improper sanitation. Suspended particles or organic matter. Overused or old water. Clean the filters. Shock the spa water with sanitizer. Add sanitizer as your owner’s manual recommends; adjust the pH and/or the alkalinity to the recommended range.

When to start thinking about spa maintenance?

The best time to start thinking about spa maintenance and repair options is before you even purchase your hot tub. When you buy a hot tub from a reputable Hot Spring dealer, your package includes access to a wealth of expert knowledge and certified technicians who can ensure the best possible outcome when your spa experiences problems. So, plan a visit to your showroom today. You can also refer to our frequently asked questions, request a personalized price quote, or download a brochure for more details about Hot Spring spas.

How to check if a spa heater is working?

Open the clamp of the amp meter and wrap it around the ONE wire you chose. With the power and heater/filter cycle on, you should be reading approximately 15 amps on a spa that is wired 110 volts, and 25 amps on a spa that has been wired for 220 volts. If you are getting either one of these readings, then the heating element is working properly. Spa water heats at a rate of 3 degrees an hour wired at 110 volts and 10 degrees an hour at 220 volts. If you did not get a reading at all then continue with next test.

How to fix no heat?

Mentioned above are just some of the basic steps in solving the “no heat” problem and in no way covers all the “could be’s”. Some other things to check are: 1 Faulty heater Contactor 2 Burnt wires 3 Fuses and/or breakers at spa or house 4 Faulty thermostat

Why is my spa water hot?

The #1 reason is filter related. It has become old, dirty or clogged, which has restricted the flow of the water. This fools the hi-limit switch sensor into thinking that the spa water is getting to hot. This is what a hi-limit switch does. It’s a safety switch that measures water temperature, tripping if it senses a higher than normal heat rise.

Where is the thermostat located on a spa?

IMPORTANT: Some spas have the thermostats located on top. These are called Spa Side Controls, they have built in air buttons and orange indicator lights. One of the indicator lights says heater, this light comes on regardless if the spa is heating or not. Do not troubleshoot using this light, it could confuse you.

What is the red button on a heater?

What you are looking for is that red button that is pictured above; it is the only actual part of the hi-limit switch that is visible without going inside the control boxes. When you locate it, give it a push, if you feel or hear a click, or you see a heater indicator light come on that wasn’t’t on before, then you have solved the problem.

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