Robotic pool cleaners can be a time and energy saving addition to any pool. However, they can sometimes require maintenance or repair to ensure they continue to operate as intended. While minor problems are common with all robotic cleaners, they can usually be resolved by following basic troubleshooting techniques.

A simple check of the power light on the unit will help to diagnose if the problem lies in the power supply or the unit itself. If the lights are off, the unit may be unplugged or plugged in incorrectly. Inspect the power cord for tangled, damaged or broken wires and replace them as necessary. Also, check the floatation and suction to make sure they are working properly. Clean brushes and tracks regularly to avoid clogging, and keep them free from debris that can interfere with cleaning efficiency.

Depending on the model, some robotic pool cleaners use an independent booster pump to lift them up and over the water surface, while others rely on the pool’s system. Keeping the filter clean can greatly increase a robot’s effectiveness by removing dirt particles before they reach the motor.

One of the most common robotic cleaner issues is if they do not climb walls or surfaces. This can be a result of several factors such as dirty or damaged brushes, improper floatation and suction, and a lack of traction or climbing power. Making adjustments to the cleaning pattern or adjusting the cleaner speed can often correct this issue.

In many cases, a robotic cleaner that flips over while in operation is a result of a tangled or obstructed cable. It is essential to roll up the cord before removing the unit from the pool in order to prevent twisting or straining at the plug and lead. It is also important to keep the cleaner’s hose out of the way of any obstacles to avoid tangling or causing the robot to overturn.

Another very common problem is a robotic cleaner that does not drive or turn in a straight line. This can be a sign of a damaged or faulty motor that requires replacement. Performing a test with the unit while still in the pool can be a great diagnostic tool to determine if this is the case.

Many robotic pool cleaners have backup valves or reverse mechanisms to help them overcome a stuck or stalled condition. If this is not the case, the quickest fix is to shorten the hose by 1 meter or more, or replace the hose floats to avoid waterlogging and tangling. Lastly, it is essential to keep the hose length appropriate for the pool size to avoid the cleaner from becoming overloaded with debris and creating unnecessary stress on the motor. It is recommended to empty the robot before the overloading occurs and to scoop out large debris such as palm fronds or twigs before each use. This can prevent excessive loading on the impeller fins which can eventually cause damage and premature motor failure.