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You can ask the seller to replace a cable if it's under 1 year warranty.

Technicians said the internal contact of the wires is not good. The pcb and bluetooth modules are both in the bluetooth controller, so you replaced and it didn't help.

Nothing wrong with the power adapter if the green indicator light keeps stable. There is a weak contact of the cable that connect to the light and the bluetooth controller.

This cleaning cloth features one side made of high-quality deer suede and the other side made of high-performance microfiber material, with dimensions of 30*30 centimeters. This dual-sided design not only offers aesthetic durability but also strong functionality, providing you with more options...

Chihiros Fish Food Feeder Material: Aluminum and acrylic You can control the amount of each feed through the knob. Suitable for nano tanks.

Ok so there is a weak contact of the cable that connect to the light and the bluetooth controller.

You can open the side screws to check if those wires are inserted firmly.

When the solenoid valve is closed, the deflation will not stop immediately, and there will be a small amount of residual gas at the bottom of the valve and bubble counter. The residual gas will be slowly outgassed depending on the gas output, which takes about 1-5 minutes. If it lasts for a...

Which controller did you buy? Take a photo of the SN code on the bluetooth controller.

6-8h

Ok, techncians said the device ID NO is not complete, if you wanna remove it, paste the ID NO again here, technicians will help to delete.

Technicians deleted it.