How to Fix Hot Tub Jets That Aren’t Working

Hot tub jets are one of the most enjoyable features of your spa, providing a relaxing and therapeutic massage while you soak. But what happens when the jets stop working? Whether it’s a single jet or multiple jets, there are several potential reasons why your hot tub jets might not be functioning properly. Luckily, many of these issues can be fixed with a little troubleshooting and some basic maintenance. Here’s a step-by-step guide on how to fix hot tub jets that aren’t working.

1. Check the Jet Controls

Before diving into more complex solutions, always start by checking the controls. Hot tubs usually have a jet control knob or button that adjusts the flow of water to the jets. Sometimes, the jets may appear to be “off” simply because the water flow has been reduced or turned off.

How to check:

  • Locate the jet control valve, usually near the jets or on the control panel.
  • Turn the knob or press the button to ensure the jets are set to the highest setting.
  • If your hot tub has multiple jet zones, make sure the specific zone with the malfunctioning jet is turned on.

2. Check for Airlocks

An airlock occurs when air gets trapped in the pipes leading to the jets, preventing the water from flowing properly. This is a common issue and can be resolved easily.

How to check for airlocks:

  • Turn off the hot tub’s power and allow it to cool down.
  • Locate the air valves near the jets (usually found near the jet controls).
  • Open the air valves to allow the trapped air to escape.
  • After a few minutes, turn the hot tub back on to see if the jets begin working again.

3. Inspect the Pump

The pump is responsible for circulating the water through the jets. If the pump is malfunctioning or not working at full capacity, it can cause weak or non-functioning jets.

How to check the pump:

  • Listen for any unusual noises coming from the pump. If the pump is silent or making a buzzing or grinding sound, it may need attention.
  • Check the pump’s power. Make sure it’s plugged in and that the breaker hasn’t been tripped.
  • Examine the pump’s motor for any visible damage or wear.
  • If the pump is not working properly, it may need to be repaired or replaced. In this case, it’s best to consult a professional.

4. Clean or Replace Clogged Filters

A clogged filter can restrict water flow to the jets, causing them to perform poorly or not work at all. Filters can accumulate debris, oils, and minerals over time, which can restrict water flow and reduce the effectiveness of your jets.

How to clean or replace filters:

  • Turn off the hot tub and remove the filter from its compartment.
  • Rinse the filter with a garden hose to remove dirt and debris.
  • If the filter appears worn or damaged, it’s time to replace it.
  • Use a filter cleaner (if needed) to break down oils and stubborn buildup, or soak the filter overnight in a cleaning solution.

5. Check for Blockages in the Jets

Sometimes, the jets themselves can become clogged with debris, minerals, or dirt, preventing them from working properly. A blockage can cause the water flow to be weak or nonexistent.

How to check for blockages:

  • Turn off the hot tub and inspect each jet for visible obstructions, such as dirt or buildup.
  • Use a soft cloth or brush to gently clean around the jet openings.
  • You can also use a jet cleaner (available at most hot tub supply stores) to help break down buildup in the jet nozzles.
  • If you find that the jets are still clogged after cleaning, you may need to remove and clean the internal parts of the jets.

6. Look for Leaks in the Plumbing

Leaks in the plumbing system can reduce the water pressure and cause the jets to malfunction. If you notice water pooling around the hot tub or if the jets seem weak despite proper controls and filters, a leak could be the cause.

How to check for leaks:

  • Inspect the visible plumbing lines and connections for signs of water leakage or cracks.
  • If you suspect a leak but can’t find the source, you may need to perform a pressure test. A professional hot tub technician can help with this if necessary.
  • Leaks may require a sealant or a part replacement, depending on the severity and location of the leak.

7. Examine the Jet Diverter Valve

If your hot tub has multiple jet zones, a malfunctioning diverter valve can prevent water from reaching the jets. The diverter valve controls which jets are activated and how the water is directed.

How to check the diverter valve:

  • Locate the diverter valve (usually near the control panel).
  • Turn the valve to ensure it’s not stuck or jammed. If it feels resistant or is in a fixed position, it may need to be replaced or repaired.
  • Lubricate the diverter valve with a silicone-based lubricant to help it move freely.
  • If the diverter valve is faulty, you may need to replace it to restore full jet functionality.

8. Reset the Hot Tub’s Power

Sometimes, resetting the hot tub can resolve minor issues, especially if the jets are not working due to an electrical or communication problem within the system.

How to reset the power:

  • Turn off the power to the hot tub at the breaker box.
  • Wait for 5-10 minutes, then turn the power back on.
  • Allow the system to reset, and check if the jets start working again.

9. Call a Professional Technician

If you’ve tried all of the above steps and your jets still aren’t working, it may be time to call a professional. Hot tubs can have complex electrical systems, and some issues may require specialized knowledge or tools.

When to call a technician:

  • If the pump is not working or making unusual sounds.
  • If you cannot identify the source of a leak or blockage.
  • If the electrical or control system appears damaged.

A professional technician will be able to diagnose the issue accurately and make the necessary repairs.

Conclusion

Hot tub jets are a key part of enjoying your spa, and when they stop working, it can be frustrating. However, many common issues, such as clogged filters, airlocks, or blockages in the jets, can be easily fixed with a little troubleshooting. Regular maintenance, such as cleaning the filter and checking the water chemistry, can also help prevent future problems. If all else fails, don’t hesitate to call a professional technician to ensure your hot tub remains in top condition for years of relaxation.