Alerts are sounding while using the device, is this normal?

The controller suddenly turns off while the it is working.

There are movements on the mattress where the water flows, is this normal? 
 

The water is in the controller but the alarm keeps ringing.

Wi-Fi is not connected.

In timer mode, does it turn on/off automatically?

Can I use the mattress on the soft bed?

The mattress pad is not getting cooler

I can't feel the coolness.

Is the front and back of the high-frequency mattress fixed?

Is it sold on the market?

Are there any accessories that need to be replaced periodically when using it?

After opening the box, I see some water left on the device tank. Is this normal?

When do I refill water?

Is this device electromagnetic wave safe?

I heard you can get burns from hot water from heating mattress pads. Does this device have safety switch?

How long is the hose between the controller and mattress?

What temperature is the best for normal use?

Do I need to change water on this device?

It has timer function?

What type of the water should I use?

What is the power consumption?

Is there manual?

What is the temperature control range?

Is there any external vibration or heating?

How long is the power cord? Can I organize it inward the product?

Can I purchase the the component when it's lost or demaged? If so, Please let me know how to get it.

What is the precautions for use?

What is the weight of the product?