1. In most cases, it is because the battery has been used for a long time, leading to normal power supply, at this time, you only need to replace the battery to solve the problem. Of course, it is also possible that the remote control has not been used for a long time, causing the spring in the battery compartment to rust, and you need to clean up the rust before installing the battery. If that doesn't work, you can only turn to after-sales service for the product.
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2. The bath master remote control fails, usually the receiver inside is broken, at this time you only need to replace a new one on the line. Mainly because the water vapor in the bathroom is larger, so the possibility of bad is also larger