8 Wave Spa Problems (+ How to Solve Them Quickly)

wave spa

If you’re having trouble with your wave spa, there are a few common causes.

These include the high limit and Pressure switches, Scale buildup, Dry fire, and water-chemistry problems.

Our goal is that this article can help you find the source of your Wave spa problem and solve it quickly.

But before you tackle any of these problems, make sure to clean the walls. This will prevent biofilms from forming on the spa’s walls.

High limit switch

If your wave spa has a high limit switch that has recently been tripped, you may want to reset it.

To reset your high limit switch, press the big red button on the spa pack. If the temperature of the water inside the thermowell remains the same, the switch may be faulty.

However, if the temperature is still too high, there are a few other possible causes. Continue reading to learn more about these common problems.

One of the most common causes of hot tub overheating is a high limit switch. This built-in safety device trips your hot tub’s heater whenever the water temperature is too high.

This prevents the heater from melting or scalding bathers.

The high limit switch is calibrated to the highest safe temperature, and if the water rises past this temperature, it will break the circuit, stopping the heater.

Pressure switch

If your wave spa doesn’t heat up, a common problem is the pressure switch. Usually, it screws into the heater manifold and has two small wires at each terminal.

You can bypass this switch by turning off the spa’s power source. However, if this does not fix the problem, you may need to replace the pressure switch. To troubleshoot the problem, follow these steps:

Before replacing the pressure switch, you should check that it is properly installed. Plastic thread pressure switches are not easy to install and could leak. Choose a stainless steel pressure switch and wrap the connection with white pipe tape.

Always remember that repairing hot tubs is not a DIY project. Only a professional should attempt this. Listed below are some common problems with pressure switches. If the above steps are not enough to solve the problem, consider hiring a professional.

In order to test the pressure switch, first turn off the water to the lowest setting. If the ohmmeter does not show a stable 0 ohms reading, the switch may need to be replaced. You can do this by turning the adjustment thumb wheel counter-clockwise.

To check the wiring, you can also turn the knob a half turn in the opposite direction. Make sure the pressure switch wires have a maximum of 5 volts on them.

Scale buildup

Regular cleaning and chemical treatment are essential to maintaining the water quality of your Wave Spa. You must be careful to read the directions on any chemical label before attempting to use it.

Always add these chemicals while the spa is not in use. Make sure the water is circulated regularly and add them only when completely dissolved.

Also, never mix chemicals as they may create poisonous gasses or explode when mixed together. Also, water-treatment chemicals are highly concentrated.

pH levels in spa water should be 7.2 – 7.8 to maintain the proper balance of minerals. If the water is too acidic, scale deposits on the electrodes and filter, causing an unpleasant experience for the user. In addition, this scale can damage the filter and other critical parts of your spa. If you don’t know how to properly clean your Wave spa, the steps below will help you solve the problem.

Dry fire

A dry fire in a wave spa can occur for several reasons. Typically, it is caused by inadequate water flow in the heater or a clogged pipe. Other reasons include poor water chemistry or circulation problems. In severe cases, the heater element may have failed or a failsafe component has failed. Below are some ways to diagnose a dry fire in a wave spa. Let’s begin by identifying the symptom.

The water flow sensor can be used to prevent dry fire. This has the advantage of deactivating the heating element 5 if the water flow is insufficient. However, this feature has its disadvantages. It is expensive and difficult to install. It is also susceptible to mechanical failure. However, it is worth trying. In addition, this feature is not perfect – a failure in the water flow sensor will result in a dry fire.

Leaky seals

If your wave spa is leaking water, you should immediately check the pumps and the cabinet for signs of water. Be sure to check all the unions and pumps, paying special attention to the pump. Look for water on the motor, which is usually the result of a leaky seal. To ensure proper operation of your equipment, check the pH levels and chlorine/bromine levels of the water. If you see any of these problems, you should have your spa repaired.

A leak in a hot tub may have many causes. It could be caused by a damaged jet or other component. In this case, you can seal the holes with Plast-Aid. Make sure to use the correct type of sealant, as improper fittings can cause the leak to worsen. If your spa is new, you should check for leaks that could void the warranty. Checking the pumps and jets can save you money and time. You can also replace o-rings and pump seals before the water starts to leak. In some cases, water leakage can lead to an electrical short, so you may want to check for a leak.

Corroded electrical components

A corrosion-prone component can cause malfunctioning hot tub parts, compromising the water’s chemistry and possibly causing further damage. Corrosion can also compromise the filtration system, exposing bathers to potentially harmful contaminants. Electrical contact cleaners and a wire brush should be used to clean corrosion-prone connectors. When inspecting the spa cabinet and breaker box, be sure to look for whitish powder, rust, or char marks around wire connectors. You can also check the connections and wire connectors of the control panel and component wiring to determine if there is any damage.

If you notice corrosion, it can be a signal of a faulty electrical component. When you see a whitish powder, or rust in a certain area, the corrosion is present. Check the wire connectors in the spa and ground wires and other areas of the component wiring. You can repair the corrosion if you find any, but the extent of the damage depends on where it is. In the first instance, you can clean the corroded connectors with an electrical contact cleaner.

Water lock

There are many reasons why you might be experiencing water lock in your wave spa. It can occur as a result of a number of different issues, including the heating element failing to function or air getting trapped in the water lines.

In addition to water being too warm to stay comfortable, air can also damage your hot tub’s pump.

To fix this problem, you must first figure out why the water is not circulating properly. In most cases, air lock is caused by a low pH level and can cause the pump to shut down and stop working.

If you can’t turn on the heating system, you must check the water level in the spa. The level of the water should be below the minimum water level.

Another common reason for this problem is the lack of enough pressure. If this is the case, you must clean the filters and replace them. If these steps do not help, you can try cutting off the electricity for five minutes and reconnect it.

You may also want to check the water line between the high and low limits, or replace the filter cartridge.

Clogged filter

The first step to fixing a clogged filter in a wave spa is to change the water in the spa. This should be done at least every three months.

While the spa is empty, you should clean the filter by soaking it overnight in a solution specifically formulated for spa cartridges.

Rinse the filter thoroughly and repeat if necessary. You should have two filters on hand at all times.

This way, you can quickly and easily solve the problem of a clogged filter.


In some cases, a dirty filter may also lead to your wave spa not heating up, resulting in the spa’s inability to maintain a comfortable temperature.

While this can be an inconvenience, it’s a simple fix that will save you time and money. Ensure that the filter is clean and replace old o-rings and pump seals.

If you’re still experiencing this problem, you can also check the thermostat and filter for damage.