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MAINTENANCE AND STORAGE

WARNING: 

Always remove the battery pack before carrying out any cleaning, maintenance 

and storage.

WARNING: 

Always wear protective gloves before doing any cleaning and maintenance.

Maintenance

1.  Always switch the product off, disconnect the battery pack and let the product cool 

down before performing inspection, maintenance and cleaning work.

2.  Keep the product clean. Remove debris from it after each use and before storage, using 

a soft damp cloth.

3.  Regular and proper cleaning will help ensure safe use and prolong the life of the product.
4.  Inspect the product before each use for worn or damaged parts. Do not operate if you 

find broken or worn parts.

WARNING!

 Only perform repairs and maintenance work according to these instructions. All 

further works must be performed by a qualified specialist.

Cleaning

Before cleaning, inspecting your unit, make sure that the motor has stopped and is cool. 
Disconnect the battery pack to prevent accidental starting.

NOTE:

 To ensure the best performance of your product, it is important to keep it clean. 

Always clean your cordless window cleaner immediately after use.
Never clean the product with a water jet or high pressure cleaner. The motor must remain dry. 
Do not use aggressive cleaning agents such as cold cleaner or petroleum ether.

Replace a new rubber blade

NOTE:

 

Contact the after-sales centre if you need new extra rubber blade.

Transportation

1.  Switch the product off and disconnect the battery pack from the machine before 

transporting it anywhere.

2.  Attach transportation guards, if applicable.
3.  Always transport the product by its handle. When lifting the product use the 

transportation handle as an aid.

4.  Protect the product from any heavy impact or strong vibrations which may occur during 

transportation in vehicles.

5.  Secure the product to prevent it from slipping or falling over.

TROUBLESHOOTING

Fault

Possible cause

Troubleshooting

Device fails to start

Battery pack discharged

Charge the battery

Battery pack defective

Contact service center

Is the device defective

Contact service center

Bad suction 

performance

Water tank is full

Pour out dirty water

Rubber blade worned 

Replace a new rubber blade 

Waste water is

leaking out

Water tank max limit

reached

Empty the tank

Storage

1.  Clean the product as described above and disconnect the battery pack.
2.  Store the product and its accessories in a dry, frost-free area.
3.  Always store the product in a place that is inaccessible to children. The ideal storage 

temperature is between 10°C and 30°C.

4.  We recommend using the original packaging for storage or covering the product with a 

suitable cloth or enclosure to protect it against dust.

MAINTENANCE AND STORAGE

Summary of Contents for LW V28

Page 1: ...READ UNDERSTAND INSTRUCTION MANUAL Save all warnings and instructions for future reference CORDLESS WINDOW CLEANER Original Instructions GB LW V28 ...

Page 2: ...l Instruction CONTENT Intended use 04 General safety warnings 04 Symbols 08 Technical data 11 Description of product 12 Assembly 13 Operation 14 Maintenance and storage 17 Troubleshooting 18 Declaration of conformity 19 ...

Page 3: ...this poses a suffocation risk General notes WARNING Persons with reduced physical sensory or mental capabilities and persons lacking experience and knowledge may only use the appliance if they are properly supervised have been instructed on use of the appliance safely by a person responsible for their safety and understand the resultant hazards involved Children must be supervised to prevent them ...

Page 4: ... Do not charge batteries primary cells Do not throw battery packs into a fire or into the household rubbish Avoid contact with fluid leaking from defective batteries Immediately rinse off the fluid using water if contact is made and also consult a doctor in the event of contact with the eyes WARNING Risk of injury Do not direct the spray jet onto the eyes CAUTION Do not use the appliance if it has...

Page 5: ...us personal injury SAFETY ALERT SYMBOL Indicates DANGER WARNING or CAUTION May be used in conjunction with other symbols or pictographs Symbol meaning This page depicts and describes safety symbols that may appear on this product Read understand and follow all instructions on the machine before attempting to assemble and operate SYMBOLS Read the user manual before using the machine Warning Danger ...

Page 6: ...ecycling point Batteries contain Li ion waste Do not dispose of batteries as unsorted municipal waste with household waste Check with your Local Authority or local store for recycling advice SYMBOLS Li Ion Type LS V28 Cleaning width 260 mm Water tank volume Max 80 ml Net weight 0 44 kg Battery pack Type AL V40 Battery capicity 4V 4A 14 4Wh Input max 5V 1A Out put USB type A 5V 1A Measured sound po...

Page 7: ...ase button Checking the box contents a Window cleaner handle b Removable work head c Battery pack d Charing wire e Manual f Manual sprayer with pad DESCRIPTION OF PRODUCT b e f c d a 1 2 3 4 5 6 7 8 9 ASSEMBLY Install the pad onto the bracket Fill with water or cleaner mix solutions NOTE Obey the mix solutions required by the detergent Install removable work head CLICK Not included in the package ...

Page 8: ...ow green when battery pack has been fully charged Insert the battery Insert the battery in to the device make sure the battery pack is in the right orientation IMPORTANT Make sure that the battery pack is inserted in the right orientation torch light button on up side If you want to uninstall the battery pack press the battery pack release lever and then remove the battery pack OPERATION 5V 1A To ...

Page 9: ... the dirty water MAX MAX OPERATION Working tips To ensure the best clean and suction proformance when using the product working angle should less than roughly 30 and that no force is needed If angle and or force are increased the suction will be reduced pure working result 30 30 ...

Page 10: ...cleaning agents such as cold cleaner or petroleum ether Replace a new rubber blade NOTE Contact the after sales centre if you need new extra rubber blade Transportation 1 Switch the product off and disconnect the battery pack from the machine before transporting it anywhere 2 Attach transportation guards if applicable 3 Always transport the product by its handle When lifting the product use the tr...

Page 11: ...ory Date 18 03 2021 Signature ________________________ Place York Name Mariana Hall General Manager SUMEC UK Unit A B Escrick Business Park Escrick York YO19 6FD DECLARATION OF CONFORMITY To the provisions of Council Directives We MEROTEC GmbH Otto Brenner Str 8 47877 Willich Germany Declare that the product Machine Description Cordless window cleaner Machine Type LW V28 Function Cleaning window C...

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