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The Home Depot

Hot Tub Repair Guide

Pro Referral > Home Guides > Pool and Hot Tub > Hot Tub Repair Guide
Hot Tub Repair Guide

A hot tub is a great addition to any home. It can provide a great place to spend time with friends and family. Hot tubs do come with a maintenance requirement, and when they are in need of repair there are a number of options available to you.


Here are just a few of the problems that can occur with hot tubs and some of the parts you’ll need to check if you want to try and fix the issue by yourself.

  1. 1.No Power

    If you crank the hot tub up to full blast and it doesn’t seem to be moving the water quickly, you most likely need a new pump motor.

    Every hot tub has an electrical system. If the tub doesn’t even turn on, chances are it’s lost it’s power. Most hot tub spare part shops will sell you a new electrical system, but you’ll need to be careful when installing it. It can be quite difficult and better left to an expert. It might seem obvious but make sure that there is absolutely no water in and around the tub once you start working with the electrical system.

  2. 2.No Heat

    If your spa turns on but doesn’t appropriately heat the water, there could be a number of different technical culprits. Anything from the thermostat, flow switch, and heater relay could be suspect. You’ll have to test each part individually to identify the true source of the problem.

  3. 3.Speed

    If you crank the hot tub up to full blast and it doesn’t seem to be moving the water quickly, you most likely need a new pump motor. The air switch, contractor or relay could also be causing you issues under this scenario.

  4. 4.Light

    If your hot tub is equipped with a built in light that won’t turn on, it’s not necessarily the bulb. In addition to the lamp, you’ll also want to check the light air switch, light transformer and light fuse.

  5. 5.Leaks

    This is potentially one of the worse problems for a hot tub as a persistent leak can get out of the tub and damage your deck or surrounding property. The most common reason a leak occurs is a bad shell. A minor shell leak can be fixed with a simple repair kit but a major leak often means that the entire shell needs replaced. Unfortunately, this can be quite difficult to do without the help of a professional. The leak could also be occurring in the pump seal or in one of the valves. A shell is supposed to least 30 years but your mileage may vary.

  6. 6.Spa Covers

    Spa covers take the most wear and tear of any item in your spa, sometimes requiring replacement every few years. Ensure the cover has proper insulation and good safety rating before making a purchase.

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