BWT Cosmy Robotic Pool Cleaner

Introduction

System Overview

The BWT Cosmy robotic pool cleaner sweeps the pool floor and walls, collecting dirt and debris in its internal filters. This user manual explains how to operate the robotic cleaner, including cleaning, maintenance, and storage procedures. This manual reviews several different models with variations in components.

Robotic Cleaner Operation

Once the robotic cleaner is placed in the pool and activated, it operates according to its program. It moves along the floor and walls of the pool, covering the entire area. When it has finished its program, it remains inactive on the pool floor and automatically shuts off. Note: It is not recommended to stop the pool cleaner prior to cycle end.

Note: Wall climbing is an optional feature. When enabled, the robotic cleaner climbs the wall at intervals according to its internal program. Its ability to climb over stairs in a swimming pool is subject to stair geometry and material.

Operating Conditions

The robotic cleaner is intended for use in residential swimming pools only and under the following conditions:

1. Recommended water temperature: 22°C-32°C (72°F-90°F)
2. Water pH: 7.2 - 7.6
3. Chlorine level: Maintained according to the pool manufacturer's instructions (Recommended: 2-4 ppm)

Note: Failure to maintain the pool according to the recommended operating conditions could prevent the robotic cleaner from functioning properly.

Components

The main components of the BWT Cosmy robotic pool cleaner include:

• Robotic Pool Cleaner: The primary unit responsible for cleaning the pool. It features tracks for movement and a body housing the motor and filters.

• Power Supply Unit: This unit connects to the wall socket and the cleaner's floating cable. It includes the control interface.

• Power Cable: Connects the power supply unit to the wall socket.

• Floating Cable: Connects the power supply unit to the robotic cleaner, allowing it to operate in the water.

• Cart (Optional): A trolley for storing and transporting the cleaner and its accessories.

Operation

Placement of the Power Supply

Place the power supply at least 3.6 meters (11.8 feet) from the pool and at least 12 cm (4.7 inches) above ground. CAUTION: The power supply is not water-resistant; it must not be exposed to water or direct sunlight.

Floating Cable Management

Press the plastic snap on the zip ties to release the floating cable. Use only the necessary length of cable in the water, leaving the excess outside the pool.

Before Placing the Cleaner in the Water

Ensure there are no people in the pool. Verify that the filters are clean. Confirm that the pool conditions meet the operating requirements (refer to "Operating Conditions").

Placing the Cleaner in the Water

Unroll the floating cable. It is recommended to extend a length of cable equal to the pool's diagonal size plus an additional two meters. Smooth out any coils or twists in the cable. Connect the floating cable to the socket on the power supply. Roll any excess cable outside the pool, near the power supply. Place the cleaner unit in the pool and let it sink to the bottom. Do not start operation before the robotic cleaner has settled on the pool floor.

CAUTION: Operating the cleaner out of water may cause immediate and severe damage, resulting in loss of warranty.

Pool Condition Indicators

Ensure the following pool conditions are met:

• ? Chlorine: 2-4 ppm
• ? pH: 7.2-7.6
• ?️ Temperature: 13°C-35°C (55°F-95°F)
• ? NaCl: 4000 ppm (max)
• ?❌ NO SWIMMING WHILE THE ROBOT IS IN THE POOL

Starting the Robotic Cleaner

Connect the power supply to the wall socket. The On/Off button will illuminate, and the robotic cleaner will start its cleaning program. If the power supply is already connected, the On/Off button will flash to indicate standby mode. Press the On/Off button to switch between modes. Note: If the full filter indication light is ON, ensure the filter is removed and cleaned before placing the cleaner in the pool water.

Cleaning Cycle

During the cleaning cycle, the cleaner:

1. Moves across the pool floor, collecting dirt and debris.
2. Changes direction and rotates automatically according to the selected program.
3. Climbs the pool walls periodically as set in its internal program.

Note: The robotic cleaner may occasionally stop moving for a few seconds. This is part of normal operation, not a malfunction.

Stopping Robotic Cleaner Operation

The robotic cleaner automatically enters standby mode after each cleaning cycle, indicated by a flashing On/Off button. To stop the cleaner during a cycle, press the operation button once. The On/Off button will flash, and the cleaner will enter standby mode.

Removing Cleaner Unit from Water

1. Unplug the floating cable from the power supply.
2. Pull the floating cable to bring the unit close enough to reach the handle.
3. Using the handle, lift the cleaner out of the pool.

CAUTION: Do not use the floating cable to lift the cleaner out of the water.

Power Supply Indicators

• ▶️ On/Off Button
• ?️ Full Filter Indicator
• ? Bluetooth
• ⏱️ Short Cycle
• ⏳ Delay Operation

Maintenance and Storage

Cleaning the Filters

The two filters must be cleaned after each cleaning cycle. Press the button to release the filter and pull it out of the cleaner. Open the filter case. Spray water on the outer sides of the filter, then towards the inner side, to clean all dirt and debris. Reinsert the filter back into its location.

Storing the Robotic Cleaner

Follow these instructions when storing the robotic cleaner:

1. Disconnect the power cord from the wall outlet.
2. Disconnect the floating cable from the power supply. Ensure the power supply is not exposed to water.
3. Spread out the floating cable and roll it.
4. Wash the cleaner unit's interior space with fresh water and let it dry.
5. Roll the floating cable and place it on the cleaner unit. Caution: Do not roll the floating cable on the handle of the cleaner unit.
6. Store the robotic cleaner components in a dry, closed location.

Checking Water Outlet Propeller

It is recommended to periodically clean debris and hair from the water outlet propeller:

1. Remove the filters.
2. Remove the screws holding the water outlet cover.
3. Remove the water outlet cover.
4. Clean any hairs, dirt, or debris.
5. Reattach the cover and fasten it with the screw.
6. Reinsert the filters.

Troubleshooting

Cleaner Does Not Turn On

No electricity in wall socket: (1) Disconnect cleaner from power/control unit. (2) Disconnect power supply from wall socket, wait 30 seconds, reconnect. (3) Turn power on. If not activated, try a different wall socket.

Obstacle in drive system: (1) Turn cleaner unit carefully to view underside. (2) Check scrubbing brush is not bent/broken. (3) Clean and remove obstacles/debris.

Propeller seized due to hair accumulation: Check if propeller is broken or needs cleaning (see "Checking Water Outlet Propeller").

Cleaner Moves But Does Not Pump Water

Filters are dirty: (1) Remove and clean filters.

Propeller broken or seized: Check if propeller is broken or needs cleaning (see "Checking Water Outlet Propeller").

Cleaner Pumps Water But Does Not Move

Obstacle in drive system: (1) Turn cleaner unit carefully to view underside. (2) Check scrubbing brush is not bent/broken. (3) Clean and remove obstacles/debris.

Cleaner Starts and Shuts Off After a Short Time

Filters are dirty: (1) Remove and clean filters. (2) Restart robot and try again.

Propeller broken or seized: (1) Remove top screws on top outlet. (2) Check if propeller is broken or needs cleaning.

Obstacle in drive system: (1) Turn cleaner unit carefully to view underside. (2) Check scrubbing brush is not bent/broken. (3) Clean and remove obstacles/debris.

Cleaner Does Not Pick Up Dirt

Filters are dirty or have holes: Clean as needed and verify no holes.

Propeller broken or seized: Check if propeller is broken or needs cleaning (see "Checking Water Outlet Propeller").

Cleaner Unit Does Not Cover the Entire Pool

Clean the filters.

1. Verify sufficient floating cable length to reach the far end of the pool.
2. Ensure the floating cable is properly spread out and not tangled.

Propeller broken or seized: (1) Remove top screws on top outlet. (2) Check if propeller is broken or needs cleaning.

The Cleaner Does Not Climb Walls

1. Verify your robotic cleaner is not a floor-only model.
2. Verify Program 1 (floor cleaning only) is selected on the power supply unit.
3. Ensure filters are clean.
4. Ensure propeller isn't broken or tied up with debris/hair.

Warranty

2 Years Warranty Policy

BWT offers a two-year product warranty to consumers from the date of delivery, subject to the terms and conditions described herein. This warranty is valid in all Member States of the European Union, subject to legal limitations. The warranty covers all components and accessories, including power supplies, pumps, motors, electric wires, brushes, belts, handles, wheels, bags, remote controls, and other product components.

Warranty Conditions

Products are covered by legal and sales warranties if the problem is reported by the consumer within two months of becoming aware of it. To apply for warranty service, contact:

1. The Authorized Technical Assistance Service (refer to the attached list for procedure).
2. The vendor from whom the product was purchased.

Authorized Technical Assistance Service BWT recommends (but does not require) maintenance and repairs by an Authorized Technical Assistance Service of BWT. If products are assembled, disassembled, handled, or repaired by unauthorized personnel, legal or sales warranties will NOT apply. DIY repairs as detailed and recommended in the manual will NOT void the warranty. This warranty covers repair, return, or replacement as mandated by law.

All warranty repairs must be performed by a BWT-authorized Technical Assistance Service. Agents, representatives, or distributors do not have the authority to alter warranty obligations.

Exclusions

The legal or sales warranty provided by BWT is not applicable if the defect or malfunction is due to:

1. Unauthorized modifications of the product.
2. Misuse, abuse, or negligence.
3. Damages caused by force majeure or fortuitous events.
4. Use of salt water levels higher than 5,000 ppm (0.5%).
5. Failure to perform preventive maintenance indicated in the manual.
6. Use of the product in anything other than private, residential pools.

Furthermore, BWT is not liable for any damages that may occur to any pool (including plaster or vinyl liner) due to the use and/or operation of the BWT pool cleaner.