Why Is My Spa Not Cooling Down? Troubleshooting Guide (Top 3 Reasons Explained)

If your spa isn’t cooling down as expected, there could be several causes. In this guide, we’ll walk you through troubleshooting steps, including checking temperature settings, identifying heat pump issues, and understanding ambient temperature limitations.

Key Takeaways:

• Check your spa’s temperature settings to ensure it's set to cool.
• If you have a heat pump, ensure it is working properly and in cooling mode.
• Understand that spas can’t cool below the outdoor temperature without a heat pump
• Running circulation pumps will increase the temperature slightly above the ambient
• Contact Spa World for expert help if problems persist.

Read the rest of the article below to learn more about how to resolve these common cooling issues.

Why Is My Spa Not Cooling Down? – Top 3 most common reasons

If your spa isn’t cooling down despite your efforts, here are the most common causes and solutions to try:

1. Temperature Settings

Double-check your spa's temperature controller. Make sure it’s set to the lowest possible temperature. If it's not cooling, reset the settings or consult the manual for guidance. If your spa has a SpaNet^® control system, the article below explains how to reset and adjust the settings.

2. Ambient Temperature Limitations

Without a heat pump, your spa can’t cool water below the outdoor air temperature. This is particularly problematic in hot summer months. Using a heat pump allows you to lower the temperature significantly.

3. Heat Pump Issue

If you have a heat pump and your heat pump isn't in cooling mode or functioning correctly, the water may not cool as expected. Set the heat pump to “AUTO” mode, ensuring it’s actively cooling the water.

Want to Know How to Cool Down Your Spa?

If you're looking for more ways to cool your spa, including turning it into a cold plunge pool, check out our guide on running a cold spa pool for warmer weather.

This detailed article covers everything from using ice to adjusting temperature settings and optimising your heat pump for cooling.

Conclusion

If your spa isn’t cooling down, the issue is often tied to temperature settings, heat pump malfunctions, or ambient temperature limitations.

By double-checking your spa’s controller settings and ensuring your heat pump is in the correct mode, you can resolve many common cooling problems.

However, remember that without a heat pump, your spa can't cool below the outdoor air temperature. If these steps don’t work, Spa World’s team of experts is here to help.

Need expert advice? Visit a Spa World showroom or contact us online for personalised assistance.