Hot Tub & Spa – Best Control Panel And Replacement Parts (2021)

Setting the temperature on your hot tub to the proper level may help save on monthly electricity bills.

All you require is a hot tub control panel.

With a hot tub control panel, you do not require any special training to set it up.

The only thing you require is a working hot tub.

There are various types of controllers for hot tubs available, like the topside Balboa spa controller, and before buying you should try to find the best controller for your hot tub.

Consider the best available controller options for hot tubs.

That is why we identified the controllers for hot tubs available on sale before preparing this review.

We searched and read customer reviews and tested the product’s functionality.

Hot Tub and Spa Controller Panel 

#1. Spa-Builders Systems Control AP-4 120/240V With Heater 5.5kW and Time Clock

Systems Control AP-4 120/240V With Heater 5.5kW and Time Clock


  • Output: 1 Pump
  • Manufacturer: Spa-Builders
  • Product Type: Pool part
  • Digital temperature display
  • Current limiting option
  • 3-digit LED display

If you are looking for one of today’s best smart hot tub control panels that are designed to last long and keep you safe, the Spa-Builders Systems Control AP-4 120/240V With Heater 5.5kW and Time Clock is a worthy option.

This model has high limit protection meant to keep you safe as you enjoy your hot tub.

You cannot set the temperature for the hot tub above certain levels that can harm you.

However, despite this protection feature, you should not set the temperature above 38 degrees Celsius for your hot tub.

Once you have the desired temperature for your hot tub, the control panel has a digital temperature display section that helps you monitor the temperature.

If there is a problem with the heater in your hot tub, the spa control will detect the failure right away.

The panel is also easy to install, and you may go ahead and install it in your hot tub on your own.

You do not require any professional help as it comes with a user manual to guide you through the installation process for your hot tub.


  • Compact design
  • Simple to use
  • Highly flexible


  • comes with a limited warranty

#2. Len Gordon Control AS-TCTD-30 Min 120/240V 20 Amp Without Button-923070-00

Control As-TCTD-30 Min 120/240V 20 Without Button


  • Manufacturer: Len Gordon
  • Warranty: Free for 1 year
  • Product Type: Spare part
  • Digital temperature display
  • Current limiting option
  • Programmable filter cycles
  • Temperature accuracy within 1 degree Fahrenheit
  • Overheat protection

The Len Gordon Control AS-TCTD-30 Min 120/240V 20 Amp Without Button-923070-00 offers users flexibility and simplicity.

This model has a compact design making it one of the most user-friendly controllers for hot tubs.

The compact design is simple to use, and you only require to press a button or two to set the desired temperature for your hot tub.

You may monitor the hot tub temperature level using the digital temperature display available.

This hot tub product is also simple to install, use, and maintain.

It does not require a lot of maintenance as long as you keep it dry.

The controller may be used for 120V/240V applications.

This means its best for any entry-level spa pack.


  • High level performing hot tub control panel
  • Easy to install, use and maintain
  • Functional current limiting option
  • Packed with safety features, overheat protection, and current limiting options


  • Pricey compared to other options mentioned

#3. Gecko 3-72-7079 S-Class Replacement 4kW Spa-Controller with JJ Mini Connectors

3-72-7079 S-Class Replacement 4kW Spa Controller, 120/240V


  • Voltage: 120/240V
  • Manufacturer: Gecko
  • Heat Output: 4 kW
  • 3- digit LED display
  • Pressure switch failure detection
  • Filter cycle overheat protection
  • Smart Winter Mode
  • Air channel clean-out
  • Automatic time-out on all outputs

The Gecko 3-72-7079 S-Class 4kW Control with JJ Mini Connectors is an entry-level pack for 120/240V applications that supports 2 pumps, a heater, a light, Ozonator and a circulation pump.

The controller combines flexibility and simplicity, making it a favorable option for hot tub owners.

The manufacturers took the time to come up with a compact design that is user-friendly, easy to install, and use with most hot tub designs.

This means you may not require to hire an expert to help you with the installation process.

This hot tub controller features high-level performance, quality functionality, and simplicity.

Based on customer reviews, the hot tub controller panel is easy to use and will alert you in case of failure in your hot tub system.

The overheat protection and current limiting options keep users safe from any health risks.


  • Easy to use and install
  • Safe – overheat protection
  • Requires little or no maintenance to function
  • High-level performance


  • Does not have defined warranty

Hot Tub Control Panel Buying Guide

Finding the right hot tub controller should not be a daunting task.

You only need to understand your needs and look at the various types of hot tub control panels available and choose a control panel based on the specifications.

However, when buying a hot tub control panel, you should consider the following factors;

  • Budget
  • Voltage
  • Display
  • Overheat protection feature
  • Brand
  • Automatic failure detection
  • Customer reviews
  • High-level performance

Hot Tub Controller Frequently Asked Questions

How do I change the control panel on my hot tub?

Installing a control panel should not be a strenuous exercise with the right tools at hand.

You can choose to hire an expert to help with the installation or choose to install it on your own at half the cost if you have some free time.

Before you go ahead and install a control panel on your own, you must read instructions on how to go about it.

In addition to the manufacturer’s instructions, you should also follow these guidelines.

Step 1 – Turn off the power

Before you begin installing a control panel in a hot tub, you should turn off both the power and water supply to your hot tub. Turn off the main circuit breaker for the power in your home. However, once you are done with the installation process, turn it on, and check all controls, to see whether it works perfectly or not.

Step 2- Remove the old control panel

The second step should be removing the old control panel from your hot tub. This is simple and can be done by prying the control panel off with a crowbar or craft knife. The control panel could be stuck on the wall of your hot tub using a sealant; therefore, you will require some energy to get it off. Remove it from the wall and disconnect it from the circuit board.

Step 3 – Add the new control panel

Plugin your panel into the hot tub board without fitting it! Turn it on to see whether it lights up. Once you are satisfied, the panel is working fine, replace it in the control panel hole and add a sealant all around.

Step 4 – Connect your panel

Here you should use a coat hanger to pull the connector towards the circuit board. Makes sure that the path is free from obstructions. Once you are done, screw the panel to the hot tub wall and seal the area with caulk before turning on the power.

How do I reset my hot tub control panel?

Resetting your control panel should be fast as you only require to press the restart button available.

How much is a circuit board for a hot tub?

Circuit boards for a hot tub range from $200 to & $700 depending on brand and quality you want to replace. Many options come with free shipping too, like Balboa spa controllers for various hot tub models.

How do you use a Jacuzzi control panel?

A Jacuzzi control panel is easy to use as you only require pressing one or two buttons to get them started.

Hot Tub Control Panel Final Thoughts

The decision to invest in a control panel for hot tub sessions requires you to find the best system there is.

You should look at the available options.

Go for the best overall – the Spa-Builders Systems AP-4 120/240V With Heater 5.5kW.

This is a functional control panel that is designed to last long.

Alternatively, you may choose the Len Gordon Control AS-TCTD-30 Min 120/240V 20 Amp Without Button-923070-00, the second-best control panel on our list.

Finally, you may choose the Gecko 3-72-7079 S-Class 4kW Spa-Controller with JJ Mini Connectors, a high-performing hot tub control panel.