Hayward TigerShark or AquaVac Robotic Cleaner Not Moving or Not Cleaning
- Not on a GFCI, or an extension cord is in use
- Powered on before being lowered into the water
- Hung control board needing a reset
Problem Description
The Hayward robot powers up but sits on the floor without moving, runs but leaves debris behind, or the power supply light flashes and the cleaner never starts. On these robots the fault is almost always at the power supply, the floating cable, the impeller, or the filter canister, and each has a quick check before you assume a dead motor.
Why This Happens in Real Homes
On a TigerShark or AquaVac the fault is nearly always the power supply, the cable, the impeller, or a packed canister, not the motor. In real installs the classic trap is powering the supply on with the cleaner still out of the water, which throws a fault, and the AquaVac 650's flashing green light means a communication or power issue that a five-minute unplug usually clears.
Reset the board, straighten and inspect the cable, and clear the impeller and canister before assuming the drive motor has failed.
Symptoms
- Powers up but sits on the floor without moving
- Runs but leaves debris behind
- Power supply light flashes and it never starts
- Green light flashing on the AquaVac 650
- Moves erratically or drives in circles
- Climbs poorly or not at all
- Cleans then stops partway through
- Power supply is on but the robot does not respond
Recognize these? Here's what usually causes it.
Common Causes
- Not on a GFCI, or an extension cord is in use
- Powered on before being lowered into the water
- Hung control board needing a reset
- Twisted or nicked floating cable causing low voltage
- Jammed impeller or pump-out
- Full filter canister cutting suction
- WiFi module fault blocking a scheduled run
- Failed drive motor or control board
Most fixes happen in the first 3 steps.
Keep the power supply out of any position where it can be splashed or rained on, and only plug it into a GFCI outlet. Lower the cleaner into the water before powering on and remove it before powering off.
Step-by-Step Solution
Confirm the power supply and GFCI, and drop the robot first
The Hayward power supply is the box with the illuminated On/Off switch, and it has to plug directly into a working GFCI outlet, never an extension cord, and sit dry and clear of the pool edge. Check that the On/Off switch actually lights. One step people miss: always lower the cleaner into the water before you switch the supply on, because powering it up in air can throw a fault and stop the cycle before it starts.
Reset the control board with a five-minute unplug
A hung control board is the most common no-move cause. Switch off and unplug the power supply from the wall for a full 5 minutes so the board fully discharges, then plug it back in and start the cycle. On the AquaVac 650 a flashing green light points to a communication or power fault, and this unplug-and-wait clears most of them. On a TigerShark, the single cycle button restarts the program after the board resets.
Straighten and inspect the floating cable
A twisted or nicked cable drops the voltage reaching the motors and makes the robot move erratically, stall, or not start while the supply reads a communication error. Unspool the cable and let it float out straight rather than coiled, and run your hand along it feeling for cuts and kinks, paying attention to the section near the swivel where the jacket cracks first. Check the connector at the power supply for corrosion or bent pins.
Free the impeller and drive system
Pull the cleaner out, lift off the filter canister, and look into the impeller housing for hair, leaves, or pebbles wrapped around the impeller, since a jammed impeller is the classic reason a TigerShark powers on but will not move. Check the drive tracks or wheels and the pump-out for debris too. Spin the impeller and the tracks by hand to confirm they turn freely with no binding before you put it back together.
Empty the filter canister or cartridges
A full canister cuts suction, kills wall climbing, and on a heavily loaded unit can stall movement. Open the top-loading canister, pull the cartridges, and rinse both the fine and coarse elements until the water runs clear. The AquaVac 650 manual specifically warns that running with a full canister gives reduced pickup and limited climbing. Seat the canister and latch the lid fully, because a lid that is not locked down leaks suction.
Run a manual cycle, then escalate
For app-connected models like the AquaVac 650, a WiFi module glitch can block a scheduled run even though the robot is fine, so start a cycle straight from the power supply button to take the app out of the equation. If the supply lights and switches on, the cable is undamaged, the impeller spins free, and the filter is clean but the robot still will not move or clean, the drive motor or control board has failed and needs service. Use the dealer locator and support at https://www.hayward.com/support.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If the robot returns to the dock mid-clean, moved furniture may have invalidated its map — a fresh floor scan resolves the majority of navigation failures.
Lift the cleaner out by the floating cable slowly so the pump-out drains and you do not flood the swivel, which is what corrodes the cable connector over time. The TigerShark QC button lets you pick a quick 90-minute or full 3-hour cycle, so confirm you did not leave it on a short cycle that finished early and looked like it quit. Hayward robotic troubleshooting guides for each model are at https://www.hayward.com/support.
Battery-related failures are almost always flagged too late — the device degrades silently for days before the app catches up to what's actually happening.
- Not on a GFCI, or an extension cord is
- Powered on before being lowered into the water
- Hung control board needing a reset
- Twisted or nicked floating cable causing low voltage
- Jammed impeller or pump-out
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
Hayward provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Hayward Robotic Pool Cleaner.
Source: hayward.com
Need More Help? Hayward Support
Note: The contact information below connects you directly to Hayward's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.