MOVA Diver A10

The Diver A10 is MOVA's cordless pool robot: no cable, a 7,800 mAh battery, and a rating for pools up to 1,900 square feet and 3 meters deep. MOVA's US store lists it at $519 against a regular price of $799.

What the runtime covers

MOVA's headline is up to 240 minutes, and its manual is precise about what that means: four hours in Floor Only mode at standard suction. MOVA's product page gives three hours for walls and waterline. A recharge takes five to six hours.

The robot itself offers three modes, chosen with the mode button before it goes in:

• Floor Only: the floor once, until the battery is low. This is the default if you pick nothing.
• Walls Only: the walls twice, until the battery is low.
• Complete: floor and walls until the battery is low.

The MOVAhome app adds more; MOVA's product page counts eight modes. The manual's mode table does not mention the waterline by name, while the product page advertises two passes on the waterline, reaching about 2 inches above it.

The battery is not replaceable

The manual says so directly: the lithium-ion battery cannot be replaced, and it is not to be opened or disassembled. MOVA warrants the battery for one year, against two for the robot, excludes the normal loss of capacity with age, and sells no replacement battery among its Diver A10 parts.

To look after it, charge indoors somewhere cool and dry, never in direct sunlight, which can trip the temperature protection and stop it charging. Store it for winter at 80 to 100% charge, indoors, and charge it fully before the first use of the season.

Setting it up

• Charge fully first. Take the cover off the charging port, dry any water in it, connect the charger, and let it finish.
• Keep the charger at least 11.5 feet from the pool's edge and 4.3 inches off the ground, on a GFCI-protected outlet. No extension cords.
• Turn the pool's circulation and heating off before a cleaning run, and do not use the robot if a liquid flocculant or clarifier has been added.
• Switch it on on a level surface, so its sensors calibrate properly, then choose a mode.
• Close the charging port cover, and lower the robot in at least 8 inches from the wall. Its pump and tracks start only once it reaches the floor, and it calibrates for about five seconds before it begins.

Nobody should be in the pool while it runs.

Connecting the app

MOVAhome needs a 2.4 GHz Wi-Fi network, or a dual-band 2.4/5 GHz one, with Bluetooth on and the phone within about a meter of the robot. Put the robot into Bluetooth pairing, which the manual does by holding a button on the robot for three seconds until the light blinks blue, then add it in the app by QR code or by hand. The robot cannot connect underwater, so cleaning data syncs once it is back out.

Getting it out

When the cycle ends, the battery drops to 10%, or an error occurs, the robot climbs to the waterline and waits there for five minutes. Lift it by the handle and it pushes out its water as it comes up. Leave it longer and it returns to the floor near the wall and shuts down, and then you need the retrieval hook on a pool pole. Auto-parking can be switched off in the app.

Cleaning and maintenance

After every use:

• Rinse the filter basket, and clean the ultra-fine filter. The basket comes out with the filter button; empty it, separate the ultra-fine filter, and hose both.
• Clear the water outlet and roller brushes of hair and debris.
• Wipe the charging port and the sensors dry.

The ultra-fine filter is a consumable to replace regularly, and MOVA recommends checking the tracks and roller brushes and replacing them as needed.

When it is not cleaning properly

• Will not climb, or will not stay on the wall: a clogged filter basket, or a wall whose curve is too steep for it, which MOVA says it is not designed for.
• Moving slowly, or not at all: clean the sensors and the roller brushes, then rock the track wheels back and forth to clear the drive gears.
• Will not follow the floor's edge: clean the sensors, restart it on level ground and let it calibrate.
• Poor results: empty the basket, pressure-wash its compartment, raise the suction setting, or fit the fine filter.
• Blinking red light: restart it on a flat surface, wait 30 seconds before putting it back in, and update the firmware.
• Will not charge: dry the charging port. If that does not fix it, the charger may be damaged.

Where MOVA's documents disagree, or are unclear

• Dimensions. The product page gives 16.7 × 15.2 × 9.2 inches. The manual's specification table gives 388.6 × 221.0 × 444.5 mm, roughly 15.3 × 8.7 × 17.5 inches.
• Charging temperature. The manual's safety section says to charge between 41°F and 113°F; its specification table gives 41°F to 127.4°F.
• Motors. The product page describes three brushless motors; its specification table lists a single pump motor.
• Chlorine. The manual's water table prints chlorine as 10 to 12 ppm, with no note on whether that is a limit or a range. Its other limits are pH 7.0 to 7.8, 41°F to 113°F and salt up to 5,500 ppm.

What the warranty covers, part by part

• Robot and motor: two years.
• Battery: one year.
• Filters, brushes and filter canisters: ninety days, for defects.
• Tracks and scrubbing brushes: excluded, unless they arrive defective.

It applies only in the United States, to the original buyer, and only if the robot came from MOVA's own US channels or an authorized MOVA reseller. The Amazon listing is sold by MOVA's store.