What to Do When Your Pool Controller Isn’t Working Properly

What to Do When Your Pool Controller Isn’t Working Properly

A pool controller is the nerve centre of your pool system. It manages everything from water temperature and filtration cycles to lighting and sanitation. So when it stops working properly, it’s more than just a hassle—it can quickly affect your water quality, energy efficiency, and even the lifespan of your pool equipment.

If you’re in Queensland and your pool controller has started acting up—maybe the screen’s blank, the pump won’t turn on, or your settings are going haywire—you’re not alone. With the warm climate and heavy use of pools across the state, it’s a common issue. But the good news? Most controller problems can be identified and sorted without ripping out your whole system. And if you do need expert help, Cyberpools is just a phone call away.

Common Signs Your Pool Controller Is Failing

Before you can fix the problem, you need to spot it. Here are a few tell-tale signs that your controller isn’t doing its job:

Blank or flickering display

Buttons not responding or erratic function

Pump or heater won’t switch on/off as scheduled

Inaccurate temperature readings

Error codes or warning messages

If any of this sounds familiar, it’s time to dig a bit deeper.

Step-by-Step: What to Do First

1. Check the Power Supply

Start simple. A tripped circuit breaker or a blown fuse might be cutting power to the controller. Reset the breaker and see if the controller powers back up. If it still doesn’t respond, you may have an internal wiring issue or a faulty transformer.

2. Inspect for Water Damage

Moisture is a big culprit, especially in humid coastal regions like the Gold Coast. If your controller is mounted outdoors or near the pool pump, check for signs of water ingress—condensation inside the panel, corrosion, or short circuits. Any water damage could permanently impact the internal electronics.

3. Test the Sensors

Controllers rely on accurate data from temperature and flow sensors. If your heater isn’t kicking in or the system keeps running when it shouldn’t, a faulty sensor might be to blame. Replacing a temperature or pH sensor is usually straightforward and far cheaper than replacing the whole controller.

4. Reboot or Reset the System

Just like a modem or smartphone, sometimes your pool controller just needs a hard reset. Follow the manufacturer’s reset process—usually by holding down a specific button or flipping a hidden switch. This can clear minor software glitches and restore normal operation.

5. Check for Software Updates

Many modern pool controllers are smart systems connected to apps or Wi-Fi. If yours is, outdated firmware could be causing compatibility issues or erratic behaviour. Log in through the app or the manufacturer's website and see if an update is available.

6. Review the Programming

Sometimes, the problem isn’t technical—it’s human. If someone accidentally reprogrammed your filtration or heating schedule, it can throw everything off. Review your timer settings, mode (e.g. ‘manual’ vs ‘auto’), and any active overrides.

When to Call in the Pros

If you’ve tried the basics and your pool controller still isn’t cooperating, it’s time to bring in professional help. Particularly if:

You suspect internal damage

The unit is out of warranty

It’s a legacy controller, and parts are no longer available

You’re considering upgrading to a smart system

Here’s where Cyberpools comes in. With a solid reputation as leading Gold Coast pool builders, we’ve handled just about every type of pool controller on the market. From diagnosing weird errors to upgrading you to the latest tech, our licensed technicians have the tools and experience to get things sorted.

Why Trust Cyberpools?

We’re not just another pool company—we specialise in future-ready, low-maintenance solutions for modern Aussie lifestyles. Here’s what sets us apart:

Local expertise: We know Queensland pools inside out—especially in the coastal microclimates of the Gold Coast and beyond.

Tech-forward approach: From smart controllers to eco-conscious magnesium pools, we’re all about making your pool smarter, easier, and more efficient to run.

All-in-one service: Whether you need controller repairs, pool renovation, or a solar system to cut running costs, we’re your go-to.

Trusted in energy: When it comes to solar power systems, Cyberpools has helped countless Queenslanders reduce their energy bills and run greener homes. Our solar solutions are built to withstand local conditions, with expert installation and real support.

Why Magnesium Pools Deserve Special Attention

If you own one of our magnesium pools, proper controller function is even more critical. These systems rely on precise dosing and flow control to maintain the balance of magnesium chloride, providing that silky-smooth swim without harsh chemicals.

A malfunctioning controller in a magnesium pool setup can mean unbalanced water, skin irritation, or ineffective sanitation. That’s why we always recommend scheduled check-ups and a properly calibrated controller system.

Upgrade Your Controller, Upgrade Your Pool

If your controller is more than five years old or you’re constantly needing to reset it, it might be time to upgrade. Newer systems offer:

Smartphone control via app

Automated heating based on solar availability

AI-enhanced water chemistry balancing

Alerts for filter cleaning or chemical rebalancing

And yes, they work beautifully with magnesium pools and energy-efficient setups.

As trusted Gold Coast pool builders, Cyberpools can recommend the best controller for your system—whether you're on the coast, in Brisbane, or inland Queensland. Plus, we’ll install it professionally and walk you through the setup so you’re never left guessing.

Get in Touch

If your pool controller’s on the fritz or your pool system just isn’t performing like it should, don’t put up with it. A small issue now can become a big (and expensive) problem later.

Call Cyberpools today on 1300 473 691 or complete our contact form to book an inspection, get advice, or ask about upgrading your system. Whether you’re looking for repairs, automation upgrades, or a full switch to solar-powered pool operation, we’ve got the tools and the tech to make it easy.