Q: What cleaning liquid should be used in the Carrera Sinus Ultra?

For the ultrasonic cleaner Carrera Sinus Ultra , you can use: Regular water - this is the basic solution recommended by the manufacturer for standard cleaning. Water + mild dish soap - you can add a few drops of universal dish soap without additives to improve results. Specialized ultrasonic concentrates - for stubborn dirt such as grease, rust, resin, or wax, use special concentrates. These products can be obtained from customer service (Lutter & Partner). Important point: fill the tank up to the MAX mark (maximum 500 ml) and ensure that the liquid completely covers the item to be cleaned. Prohibited liquids: never use flammable solutions such as ethanol, methanol, benzene, or isopropanol, as this poses an explosion risk.

Q: Where is the charging port of the CARRERA Green Cobra?

The Carrera Green Cobra uses a removable rechargeable battery. There is no direct charging port on the vehicle itself. Here’s how to access the battery connection and charge your toy: Location of the battery connection: The connection of the vehicle cable to the battery is located inside the battery compartment under the vehicle . To access it, gently turn the vehicle over and locate the small cover of the battery compartment. Using a screwdriver, remove this cover by unscrewing the screws. Charging process: The rechargeable battery must be removed from the vehicle before charging it. First, connect the battery to the charger provided in the box (the connection has been designed to prevent any reverse polarity, an important protection). Then plug the charger into a power outlet. During charging, the LED indicator on the charger lights up red. Once maximum charge is reached, the indicator turns green, meaning your battery is fully charged. Installation in the vehicle: Once fully charged, remove the battery from the charger and insert it into the vehicle compartment. Then connect the vehicle cable to the battery, and screw the compartment cover back on using your screwdriver. Important maintenance: After each use, the battery must cool down for at least 20 minutes before it can be fully recharged. Failing to respect this cooling time may irreversibly damage the battery.

Question 1

What cleaning liquid should be used in the Carrera Sinus Ultra?

Accepted Answer

For the ultrasonic cleaner Carrera Sinus Ultra, you can use:

Regular water - this is the basic solution recommended by the manufacturer for standard cleaning.
Water + mild dish soap - you can add a few drops of universal dish soap without additives to improve results.
Specialized ultrasonic concentrates - for stubborn dirt such as grease, rust, resin, or wax, use special concentrates. These products can be obtained from customer service (Lutter & Partner).

Important point: fill the tank up to the MAX mark (maximum 500 ml) and ensure that the liquid completely covers the item to be cleaned.

Prohibited liquids: never use flammable solutions such as ethanol, methanol, benzene, or isopropanol, as this poses an explosion risk.

Question 2

How to recognize a broken or failing battery on the RC Guidro remote control?

Accepted Answer

The battery of the RC Guidro remote control can be recognized as failing by two characteristic signs mentioned in the manual: the control LED blinks slowly (and not continuously) and a sound signal is heard simultaneously. Both signals must appear together to indicate that the batteries are exhausted.

Before concluding a defect, check that the batteries have been inserted correctly with the right polarity. Open the battery compartment located at the back of the remote control with a small screwdriver and ensure that the two AA 1.5 V batteries are positioned correctly. The batteries should be new and of the same brand and manufacture - never mix batteries of different ages or brands, as this can damage the contacts and the electrical circuit.

If after checking the polarity the alert signal persists (LED blinking slowly + sound signal), the batteries have lost all their energy. Replace both AA batteries with identical new ones. Once the batteries are changed, turn on the remote control via the ON/OFF switch located on the side - the LED should now light up in red steadily without a sound signal.

If after installing new batteries the LED continues to blink slowly and the sound signal persists, this may indicate a contact problem in the battery compartment or a defect in the remote control's electrical circuit. Check that the contact springs are not damaged and that the batteries are making good contact. If the problem persists, the battery detection circuit may be faulty and would require specialized repair.

Question 3

The LED on my RC Guidro remote control is blinking and the drone is not responding

Accepted Answer

If the LED on your RC Guidro remote control is blinking slowly and you hear a sound signal, this indicates that the remote control battery is depleted. The remote control uses 2 non-rechargeable AA 1.5 V batteries that need to be replaced. Open the battery compartment located under the controller using the provided screwdriver, replace the 2 used batteries with new ones, ensuring the polarity (+ and -) is correct, and then close the compartment.

After installing the new batteries, turn on the controller using the main switch located at the front. The control LED should now light up red continuously instead of blinking. If the blinking persists, check that the batteries are installed correctly and that you are using good quality batteries.

If the drone still does not respond after replacing the batteries, it is possible that the link between the drone and the remote control has been lost. Perform a new pairing procedure: first connect the 3.7 V LiPo battery to the drone, wait for the drone's LEDs to blink regularly, then turn on the controller. Then push the throttle stick all the way up and then down. The drone's LEDs should stop blinking and remain continuously lit, and the controller's LED should remain steady.

Important: After about 5 minutes and 30 seconds of inactivity, the remote control automatically turns off to save battery. You will need to repeat the connection procedure each time you use it. Always place the drone on a flat surface before connecting it, as the gyroscope adjusts automatically on startup.

Also, ensure that you have direct visual contact with the drone and that you are not too far away (the RC Guidro operates at 2.4 GHz and requires a clear line of sight). If all these checks do not resolve the issue, the controller may have a hardware defect.

Question 4

Where is the charging port of the CARRERA Green Cobra?

Accepted Answer

The Carrera Green Cobra uses a removable rechargeable battery. There is no direct charging port on the vehicle itself. Here’s how to access the battery connection and charge your toy:

Location of the battery connection: The connection of the vehicle cable to the battery is located inside the battery compartment under the vehicle. To access it, gently turn the vehicle over and locate the small cover of the battery compartment. Using a screwdriver, remove this cover by unscrewing the screws.

Charging process: The rechargeable battery must be removed from the vehicle before charging it. First, connect the battery to the charger provided in the box (the connection has been designed to prevent any reverse polarity, an important protection). Then plug the charger into a power outlet. During charging, the LED indicator on the charger lights up red. Once maximum charge is reached, the indicator turns green, meaning your battery is fully charged.

Installation in the vehicle: Once fully charged, remove the battery from the charger and insert it into the vehicle compartment. Then connect the vehicle cable to the battery, and screw the compartment cover back on using your screwdriver.

Important maintenance: After each use, the battery must cool down for at least 20 minutes before it can be fully recharged. Failing to respect this cooling time may irreversibly damage the battery.

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