3 Blue Whale Spa Problems (+ Diagnose & Fix)

Blue Whale Spa Problems

If you are a Blue Whale spa owner and you are concerned that the water temperature is too high, read this article.

There are many common problems associated with this type of spa.

Read about Airborne moisture, Circuit Breaker tripping, Heating system problems, and Diagnosing and Repairing the Thermostat and Heating System.

This is the perfect guide for any Blue Whale spa owner.

If you have questions or concerns, you can always contact the owner of the spa.

High limit tripping on circuit breaker

If you’ve experienced high limit tripping on your circuit breaker in a Blue Whale spa, you’re not alone. It happens to everyone, so let’s look at the cause of the problem.

The circuit breaker in a Blue Whale spa is 32 Amps and requires an outdoor isolator switch. You should also be sure to install an RCD-protected 32-amp circuit breaker.

A malfunctioning high-limit switch can cause the water temperature to rise so high that you can burn yourself. In some cases, the high-limit switch can trip without any obvious reason, so it’s important to troubleshoot the problem and get it repaired.

It’s not uncommon for the high-limit switch to trip without a warning, especially if you have recently drained the hot tub. If you notice this problem after a drain, try to use the hot tub without triggering the switch to test the water temperature.

Another cause of high-limit tripping on the circuit breaker in a Blue Whale spa might be a malfunctioning heater.

This component is responsible for heating the water in the hot tub. If this component is causing the circuit breaker to trip, you can disconnect the components to isolate the malfunctioning part.

Depending on your type of Blue Whale spa, you may have to replace all electrical components, which are usually located in the control room.

If the high-limit tripping on the circuit breaker in a Blue Whale spa persists after trying a reset procedure, it may be a bad thermostat.

Thermostats may be calibrated too high, making it difficult for the circuit to open when the desired temperature is reached. A small screw or 1/4 turns counter-clockwise will normally help.

You must also make sure that the probe is fully inside the thermal well.

Airborne moisture can cause dry-rot or mildew in a spa

When water gets into the woodwork, it can create dry-rot and mildew.

Even worse, airborne moisture can damage exposed wood and paper. If you want to avoid these problems, make sure that your spa is properly ventilated.

An architect can help you determine whether more ventilation is needed. Regardless of how well you ventilate your spa, you must be aware of the dangers of airborne moisture.

When wet rot happens, the affected area is more likely to have water damage than dry rot. While wet rot is harmless to humans, it can cause serious problems for your home if left untreated.

Dry rot can affect floors, walls, and cabinets, and can even affect the structural wood of your home. Detecting it early is essential to prevent other issues from developing.

Diagnosing a spa’s thermostat

There are several things to check when diagnosing a spa’s thermostat problem. First, check the Hi-Limit Switch.

This switch resets the temperature of the spa when the water temperature reaches a certain level.

This switch is not always visible, especially in older spas. If you have trouble finding it, try resetting the circuit board. Otherwise, replace the sensor. Otherwise, the spa’s thermostat may not work properly.

Another problem that may be causing low heat is corrosion in the heating element. The heating element can be damaged or even fried by corrosion or a water-balance problem.

If the pH is low, the heater could trip the ground-fault circuit interrupter.

When this happens, check the filter and circulation system to ensure that nothing is clogging them. Usually, it will be a simple problem that can be fixed in minutes.

In some cases, the jets of a spa may be airlocked. In such cases, you can turn on the water pump and wait for about 30 seconds.

If you don’t see any air bubbles, then your spa’s jets may be too weak. You may need to turn on the water pump manually or call the dealer for service. Otherwise, follow the steps outlined in this article.

A spa’s thermostat should be set between 58 and 104-degree Fahrenheit. When set too low, it may not let the voltage pass. If you’re not sure how to fix it, attend the 2003 International Pool and Spa Expo in New Orleans.

This convention will feature sessions on controlling spa thermostats. You’ll learn basic troubleshooting tips and tricks. It will also provide you with tips to fix common thermostat problems.

Depending on the brand and model of your hot tub, a spa thermostat may display an error code. A code with the code “Sensor” indicates a problem with the sensor. This could be a malfunctioning pressure switch or an out of balance sensor.

Other codes will be displayed in the control panel of the hot tub. Keep a copy of these codes nearby. These codes can help you determine whether the thermostat is malfunctioning.

Repairing a spa’s heater

If your blue whale spa’s heater has stopped working, you should be able to do so yourself, even if it’s a relatively simple task.

A heating element is the part of the spa that produces heat, and it can become damaged over time because of hard water or salt systems.

The best way to identify whether the element has failed is to check the heater’s housing. If the housing is damaged, the heating element has failed. To test the heater’s element, first check for corrosion or a short circuit.

The heater element of a hot tub is similar to that of an electric water heater. However, spa heater elements will burn out quickly without the cooling water surrounding them.

To determine if the element is faulty, test its resistance by setting your test meter on the ohms setting.

A good element will have a resistance between nine and twelve ohms, but if the resistance keeps rising, it may be a short.

A hot tub’s heater element uses two high limits. One monitors the temperature inside the spa while the other monitors the outside temperature.

When the high limit is reached, the circuit is interrupted and the heater element shuts down.

Some high limit switches are made to be submerged in water, and if they aren’t, the spa’s heater element will burn out quickly. If this happens, you can check for shorts in the coating of the heating element.


The heater element’s element can get damaged over time due to hard water or a saltwater sanitation system.

This causes it to malfunction and decrease the heater’s heat output. The heater element’s coils are like those of a stovetop.

If these parts are cracked, you will need to replace them.

You can also use sequestering agents to prevent calcium from building up on the heating element, which will prevent scale buildup. If you notice inconsistent operation of the jets, the heating element has likely failed.