Have a week out of 3 hot water bag for two days only not for lighting heating!
The heating element is broken. But the indicator circuit (that is, the lamp you say) is still normal.
Too much quality. The internal circuit is broken, or the heater is burned. Take it back to the seller. I am a small business, as long as you do not break the appearance of dirty dirty sure to give you change, it is not a thing. More than 3 months is definitely not good. Nor relatives!
This thing is not good enough to hold it all day, it will be a good cold hot water bags can not stand such a proper use of appropriate
