Troubleshooting
Guides, ownership advice and updates from the Redhill showroom — written for UK buyers deciding between hot tubs, swim spas, saunas and the kit that keeps them running.
The honest answer to most spa problems: 90% of them come down to water chemistry, a clogged or end-of-life filter, or a sensor reading something the controller doesn’t like. Articles in this section will work through the common ones — error codes, heater not warming, jets weak or noisy, persistent water cloudiness, leaks small and large.
If you need help right now rather than a guide later, the fastest paths are: our support page (covers most setup and operational questions), servicing (in-warranty and out-of-warranty repair bookings), or contact us directly. We’re a small team in Redhill — speaking to someone usually beats reading a guide.
Why Does My Hot Tub Smell? What Each Smell Means and How to Fix It
Lift the cover and the spa doesn't smell quite right? Each smell points to a different cause. Here's how to test the water, match the smell to the problem and put it right, plus...
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Itchy Skin or Sore Eyes After a Hot Tub? Causes and Fixes
Itchy skin, red patches or stinging eyes after a soak are nearly always a sign the water needs attention. How to test it, what each common cause looks like, how to put it right,...
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Noisy Hot Tub? What Each Sound Means and What to Do
Humming, gurgling, rattling or grinding? Find out which hot tub noises are normal, which need a check and what you can safely fix yourself.
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Hot Tub Error Codes Explained: What Your Display Is Telling You
Not every code on your hot tub display is a fault. This guide explains what Pr, Ec, ICE, OH, FLO, dr and the sensor messages mean, which ones are normal, and what you can safely...
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Hot Tub Jets Weak or Not Working? A Step-by-Step Troubleshooting Guide
Most weak-jet problems come down to something you can check yourself in a few minutes: the water level, a clogged filter, a closed jet or valve, or an airlock after a refill. He...
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Hot Tub Keeps Tripping the RCD? A Safe Troubleshooting Guide
A tripping RCD is your hot tub's safety system doing its job. Here is what it means, the few checks you can safely make yourself, when to call an electrician or us, and how to k...
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Cloudy, Foamy or Green Hot Tub Water? A Troubleshooting Guide for UK Owners
Cloudy, foamy or green hot tub water? Find out what's causing it and how to fix it: test, balance, clean the filter, shock, and know when to drain and refill.
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Hot Tub Not Heating? A Step-by-Step Troubleshooting Guide for UK Owners
Hot tub not heating? Work through our expert checks: settings, heat modes, filters, flow errors, the cover and the RCD, plus when to call in an engineer.
Continue Reading →UK hot tub, swim spa & sauna advice hub
Focus on size, insulation, running cost and aftercare — not headline price. Our hub links research into the right collection for your home, budget and intended use.