The answer to 'shower frozen' is that a frozen shower is typically caused by a frozen pipe or showerhead. This can happen when the temperature drops below freezing, causing the water in the pipes or showerhead to freeze and expand, blocking the flow of water.
Common symptoms of a frozen shower include no water coming out of the showerhead, the shower taking a long time to heat up, or the shower only producing a trickle of water. In some cases, you may also hear a crackling or popping sound coming from the pipes.
If you have a frozen shower, the best solution is to thaw the pipes or showerhead as quickly as possible. You can try using a space heater, heating pad, or even a hairdryer to gently warm the affected area. However, if the freeze is severe or you're unable to locate the source, it's best to call a professional plumber who can properly diagnose and fix the issue.