Cleaning of the robot vacuum cleaner Xiaomi Dreame F9: Discussion of all nodes and hidden nuances

Robot vacuum cleaner Xiaomi Dreame F9 It's a real cleaning assistant, but it depends on regular maintenance to be effective. 3-6 And in the months that it's been running, it's getting worse at collecting dust, it's humming, it's even refusing to turn on, and it's most often caused by contaminated filters, clogged brushes, or dust on sensors, which are the things that require special attention.

Unlike conventional vacuum cleaners, where it is enough to empty the bag, Dreame F9 It has a complex filtration system with HEPA-It's a component, side brushes with movable blades and laser sensors, and neglecting to clean not only causes the suction power to drop, but also causes the engine to overheat due to airflow disruption, which is one of the main causes of breakdowns. In this article, we will discuss how to properly service each component to extend the life of the device and keep its performance at the level of a new one.

1.Preparation for cleaning: what will be needed and safety measures

Before you start disassembling, make sure the robot is completely off and disconnected from the charging station. F9 It has a lithium-ion battery, and any manipulation of the contacts under voltage can lead to a short circuit. Also prepare the workplace: a table with a soft substrate (for example, a towel) is perfect, so as not to scratch the case.

You will need:

• ✂️ Flat screwdriver (to remove protective covers)
• 🧹 Soft brush (for example, for makeup or photography)
• 🧴 Alcohol wipes (for cleaning sensors)
• 🔧 Vacuum cleaner with narrow nozzle (to remove dust from hard-to-reach places)
• 🧼 Warm water and soap (for washing removable parts)

⚠️ Warning: Never use a Dreame to clean your dream F9 aggressive detergents (acetone, gasoline, solvents) - they destroy sealing gums and coating HEPA-Also avoid direct water ingress on the electronic components inside the enclosure.

If you're cleaning the robot for the first time, take a picture of the location of all the parts before disassembly, which will help avoid errors in reverse assembly, and pay special attention to the fasteners on the bottom lid, which are easy to break when you open them sloppy.

Cleaning of the dust collector and HEPA-filter: step-by-step instructions

The dust collector and filter are the lights that clog the fastest. F9 a two-stage filtering system is used: a primary filter (grid) and HEPA-If the first can be simply washed, the second requires careful handling.

How to remove and clean the dust collector:

1. Press the Release button on the back of the robot to remove the container.
2. Holding the container over the trash can, press the red latch at the bottom to open the bottom cover.
3. Remove the large garbage by hand, then rinse the container with warm water and soap. Don't use hot water, it can warp the plastic.
4. Dry the part for at least 24 hours before installing it back.

Service HEPA-filter:

• 🔄 HEPA-You can't wash the filter, you can only vacuum it or clean it with a soft brush.
• 📅 Change the filter is recommended every time. 3-6 months (depending on the intensity of use).
• 🛒 Original filter for Dreame F9 articulate DMF-FILTER-01.

⚠️ Attention: If the robot starts to make a whistling sound after cleaning the filter, it means that the filter is installed incorrectly or damaged. Check the density of the sealing gum - even a small gap violates the tightness of the system.

3. Maintenance of brushes: main and side

Dreame brushes F9 — These are the most worn parts. The rubber blade master brush eventually gets covered with hair and thread, and the side brushes accumulate dust in the bearings, and if you don't clean them regularly, the robot will start sweeping up the garbage instead of sucking it up.

Cleaning the main brush:

• 🔧 Remove the brush by pressing the red fixtures on the sides.
• 🧵 Remove the wound hair and threads with scissors or tweezers. Don't pull them by force - it can damage the rubber blades.
• 🧼 Wash the brush under running water, then dry.
• ⚙️ Check the bearings for backlash. If the brush is hanging, it's time to replace it. DMF-BRUSH-01).

Side brushes:

• 🌀 Then, remove the slacks and pull them upwards).
• 🧹 Clean the dust shaft with a brush. If the brush is rotating with difficulty, drop 1 drop of silicone lubricant into the bearing.
• 🔄 You need to change your side brushes every time. 6-12 months (article) DMF-SIDE-BRUSH).

Cleaning sensors and cameras: why the robot is “blind”

Dreame F9 It's equipped with a laser rangefinder (LiDAR), infrared sensors and a navigation camera, and the dust on these elements causes the robot to move around randomly, to run into obstacles, or to refuse to start cleaning. Cleaning sensors is the most underrated but critical procedure.

How to Clean LiDAR (Upper Rotating "Turn")

• 🧴 Wipe the LiDAR glass with a liquor towel in a light circular motion!
• 🌀 Blow holes around the sensor with compressed air (you can use a canister to clean the keyboard).
• ⚠️ Do not touch the internal LiDAR mechanisms – this may disrupt calibration.

Infrared sensors (lower part of the body):

• 🔦 Sensors are located around the perimeter of the robot (usually 4-6 Rub them with a cotton swab soaked in alcohol.
• 📱 To check the operation of sensors, launch the robot in the dark - proper sensors should glow red.

Cleaning the camera (if you have it in your model):

• 📷 The camera is on the front panel, wipe the lens with a microfiber wipe (like a glasses wipe).
• 🚫 Don’t use paper wipes – they scratch the coating.

💡

If the robot is still poorly orientated after cleaning the sensors, try resetting the room map in the Mi Home app. → Map. → Reset the card.

5. Caring for wheels and suspension: why the robot is "sluggish"

Dreame wheels F9 They have rubber treads that get clogged with hair and small debris over time, and this leads to slippage, especially on smooth surfaces (tile, laminate), and it's also important to check the suspension - if the robot starts pecking with its nose or gets stuck on the doorsteps, the problem may be in the shock absorbers.

Wheel cleaning:

• 🚗 Remove the wheels, pulling them on yourself (they are attached to the axle with a latch).
• 🧵 Remove the hair from the tread with tweezers or scissors.
• 🧼 Wash the wheels with soapy solution, then dry.
• ⚙️ Check the backlash - if the wheel is dangling, replace the axle (article) DMF-WHEEL-AXIS).

Suspension maintenance:

• 🔧 Look at the shock absorbers, the white plastic parts on the sides, and they should move freely up and down.
• 🛠️ If the shock absorbers are jammed, drop the silicone lubricant in the places of friction.
• 🚨 If the robot does not overcome thresholds higher than 1.5 cm, the suspension spring may have been broken.

💡

Regular cleaning of wheels increases the patency of the robot 30-40%. This is especially important for homes with high thresholds and carpets.

Deep cleaning: disassembly of the body and removal of dust from the engine

If the robot is quieter or discharges quickly, the problem may be in a dusty engine, which requires a partial disassembly of the body to be done deep cleaning. 6-12 months depending on the intensity of use.

How to Disassemble Dreame F9 deep-clean:

1. Unscrew 4 screws on the bottom cover (use a cross screwdriver).
2. Carefully remove the cover, starting from the back (there are latches).
3. Blow the insides of the robot with a narrow vacuum cleaner, paying attention to: engine ventilation holes; Control board (without touching it with metal objects!); Battery contacts.

dry-cloth

⚠️ Warning: When disassembling, don't touch the green board (it's a power supply unit) - static electricity can damage it. Also, don't try to lubricate the engine - it will cause it to fail.

If you notice that the dust inside the case is wet or sticky, it is a sign that the robot was working in a wet room (for example, immediately after wet cleaning), in which case, dry all the parts for at least 48 hours before assembly.

7 Frequent cleaning errors and how to avoid them

Many users make mistakes that lead to Dreame breakdowns. F9. Here are the most common of them:

• 🚫 Using a vacuum cleaner for cleaning HEPA-It destroys the filter fibers and reduces the efficiency of the filter. Right: gently knock out the dust or use a brush.
• 🚫 Washing electronic components. Even a drop of water on a board can cause corrosion. Right: clean only with a dry brush or compressed air.
• 🚫 Ignoring replacement consumables. Side brushes and filters have limited resources. Right: keep a replacement log (e.g., in phone notes).
• 🚫 Storing the robot in a wet room, which causes the contacts to oxidize. Right: store it in a dry place at a temperature. 15-25°C.

Another common mistake is cleaning the robot as it gets dirty. In fact, some elements (like sensors) need to be maintained prophylactically, even if they look clean on the surface. Dust and fatty deposits on the sensors are not always visible to the naked eye, but they significantly impair navigation.

8. Prevention and operational advice

To reduce the frequency of cleanings and extend the life of Dreame F9, follow these recommendations:

• 📅 Make a maintenance schedule. For example: Weekly: emptying the dust collector, cleaning the brushes. Once a month: washing the container, cleaning the sensors. Every 6 months: deep cleaning the case.
• 🏡 Prepare the room before cleaning. Remove from the floor small objects (socks, wires) that can wind on the brushes.
• 🔋 Keep an eye on the battery. Don't leave the robot charging for more than 24 hours, which reduces battery life.
• 🌡️ Avoid extreme temperatures. Do not use a robot in temperatures below 5.°C or higher than 40°C.

If you live in a house with animals, brushes and filters will have to be cleaned 2 times more often - wool clogs machinery much faster than ordinary dust. For such cases, it is recommended to purchase a spare set of brushes and filters to quickly replace them as they wear.

💡

In the Mi Home app, you can turn on the option of Cleaning Reminder. To do this, go to your device settings. → Service → Reminders and set a convenient interval.

FAQ: Answers to popular questions