Disassembling the mop Xiaomi Deerma 500: a complete guide with photos and tips

Xiaomi Deerma Swab CM500 It has become a popular choice among smart appliance owners because of its combination of affordable prices, efficient cleaning and compactness, but over time, even the most reliable device requires maintenance: replacing the nozzle, cleaning the rollers or repairing the rotational mechanism. Disassemble the mop yourself - a simple task, but requiring accuracy and knowledge of the nuances of the design.

Many users are afraid of damaging the device when disassembling, especially if it is a first attempt. Indeed, the Deerma 500 has several "secret" latches and mounts that are not obvious at first glance. In this article, we will discuss the disassembly process in detail, point out critical points where mistakes can be made, and give you maintenance recommendations. FAQ typical-question.

Before you start, prepare your workplace: you will need a flat surface (better cover it with a soft cloth), a set of screwdrivers (including a cross and flat), a plastic mediator or thin spatula to separate the latches, and a container for small parts. Do not use metal tools to separate the plastic elements - this can leave scratches or chips.

Preparation for the disassembly: what you need to know

Before you start to understand Xiaomi Deerma CM500, It's important to understand the design features:

• 🔋 Battery unit (removable, but requires care when retrieving)
• 🌀 Rotation mechanism of the nozzle (with a gearbox and motor)
• 🧹 Load fastening (with fast-removal locker)
• 🔌 Electronic control unit (with switching button and indicator)

The main difficulty in disassembling is the hidden latches in the case, which are asymmetrical, and if you pull the parts with effort, you can break the plastic locks. Also note the wiring: in the Deerma 500, it's quite fragile, especially in rations.

If you're disassembling a mop to clean, you just need to remove the nozzle and wash the rollers, you need to disassemble the battery completely to repair or replace it, and in any case, you need to turn the device off of charging 12 hours before work starts, and this minimizes the risk of short circuits.

⚠️ Warning: If the mop has fallen from a height or been hit, check the integrity of the body before disassembling. Cracks near the battery compartment can lead to fire if the battery is not carefully removed.

Step-by-step instructions: how to remove the nozzle and rollers

So, to start with, the simplest thing is to remove the nozzle and clean the rollers, and it doesn't require any tools, and it takes about 5 minutes.

1. Unplug the nozzle from the handle. Press the hold button (located at the junction of the handle and the base) and pull the nozzle down. If the button doesn't press, check if the mechanism is clogged with dirt.
2. Take the rollers off. There are plastic latches on each side of the nozzle -- bend them carefully with a screwdriver or a nail, and the rollers will fall out by themselves if you flip the nozzle over.
3. Wash the parts. You can wash the rollers and the nozzle under warm water with soap. Don't use abrasives, they'll damage the silicone cells.

If the rollers are spinning with difficulty even after cleaning, check them for wear. in Deerma 500 They use rollers with bearings that lose their lubrication over time, and you can restore them by dipping. 1-2 slurry-drops.

After washing, allow the parts to dry completely (at least 2 hours) before reassembling. Do not dry the rollers with a hair dryer - high temperatures deform silicone.

Disassembly of the case: access to battery and electronics

For the complete disassembly of the mop Xiaomi Deerma CM500 You'll need to open the case carefully. Start by removing the battery:

1. Remove the back cover. It's mounted on 4 screws (under the cross screwdriver) and 2 plastic latches. Unscrew the screws, then gently apply the cover to the mediator, starting at the bottom edge.
2. Unplug the battery. It's connected to the board with two wires (red and black). Don't pull the wires, open them first or gently disconnect the connector (if you have one).
3. Remove the control board. It's attached to 2 more screws. Unscrew them and carefully raise the board without pulling the motor wires.

Inside the building you will see:

• 🔄 Reductor (a gear mechanism that transmits rotation to the nozzle)
• 🔌 Motor (the main engine responsible for rotation)
• 📶 Bluetooth antenna (if your model supports smart control)

⚠️ Warning: If you notice oxidation marks or swollen capacitors on the board, do not turn on the mop until they are replaced.

To replace the battery suitable battery type 18650 with voltage 3.7V and capacity 2200mAh. Do not use batteries from other devices – they may not fit in size or discharge current.

Diagnostics and repair of the rotation mechanism

If the Deerma 500 mop doesn’t rotate the nozzle or does it in jerks, the problem may lie in:

• 🔋 discharged or defective battery
• 🌀 Worn gears gear gear gears gear gears
• 🔌 Motor wiring break
• 🧹 Pollution of the axis of rotation

For diagnosis:

1. Check the battery voltage with a multimeter. 3.5V.
2. Examine gear gears gear gear gear for chipping or wear of teeth.
3. Scroll the motor shaft manually - if it rotates with difficulty, the problem is bearings.

A common cause of malfunction is water getting into the gearbox. If the gears are rusted, they'll have to be replaced. WD-40 It will not help here - it will only temporarily facilitate rotation, but will not eliminate corrosion.

Critical detail: in models Deerma CM500 The 2022 engine is not mounted on screws, but on plastic latches. When disassembling, don't pull it upwards, press the latches from the sides first.

Making a mop after disassembly or repair

The Xiaomi Deerma 500 is to be assembled in reverse order, but there are a few key points:

• 🔌 First connect all connectors and wires, then secure the board with screws.
• 🔋 Make sure the battery is polarized correctly (plus to plus, minus to minus).
• 🌀 Before closing the case, check the operation of the motor, briefly connecting the battery.
• 🧩 Close the cover starting at the top so that the latches fall into place without effort.

After assembly, perform the test:

1. Turn on the mop and check the rotation of the nozzle at different speeds.
2. Listen to if there are any extraneous sounds (squeaking, knocking).
3. Make sure the power button is activated with the first press.

⚠️ Warning: If the mop warms up more than usual after assembly, immediately turn it off. This may indicate a short circuit or overload of the engine.

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Before the first cleaning after repair, wipe the rollers and nozzle with alcohol - this will remove the residues of lubrication and prevent divorces on the floor.

Frequent mistakes in disassembly and how to avoid them

Even experienced users sometimes make mistakes that cause the Deerma 500 to break, and the most common ones are:

• 🔧 Using the wrong tools. Metal screwdrivers scratch the plastic, and too thick mediators break the latches. Use only plastic or silicone blades.
• 🔋 Use force to remove the battery. If the battery doesn't come out, make sure you've forgotten to disconnect the wires. You can't pull them, it can take the contacts off the board.
• 🌀 Loss of small parts. There are tiny springs and balls in the gearbox and the nozzle fixing mechanism. Work on a light surface or use a magnetic mat.
• 💧 If you've washed the case, let it dry for at least a day before assembly.

Another common problem is that the gearbox is not properly assembled, so if the gears are not on the mark, the motor will wear out and the nozzle will rotate in jerks, and check the teeth before the final fixation.

If after disassembly the mop stopped turning on, check:

1. Integrity of the fuse on the board (it can burn out with a short circuit).
2. Correct battery connection (reverse polarity will disable the controller).
3. The state of the power button (the contacts may have oxidized or moved away).

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If you are not sure of your abilities, it is better to contact the service center. Self-repair without experience can lead to complete failure of the device.

Service and extension

To Xiaomi Deerma CM500 You have been in the service longer, follow simple recommendations:

• 🧼 Clean rollers after each cleaning. Dried dirt makes it difficult to spin and increases the load on the engine.
• 🔋 Don't leave the mop on charge for more than 8 hours. overcharging shortens battery life.
• 🌡️ Keep the device in a dry place. Humidity leads to corrosion of the contacts and gears.
• 🛠️ Lubricate the gearbox once every 3 months. Use only silicone lubricant - other species attract dust.

If you use a mop to clean up large debris (sand, pebbles), install a safety net on the nozzle, which will prevent abrasive particles from entering the mechanism.

Average life of Deerma 500 well-groomed — 3-5 However, the battery may need to be replaced after a few years. 2 Original parts for this model can be ordered on AliExpress or in Xiaomi branded stores.

FAQ: Answers to Frequent Questions