The answer to 'shower frozen' is that a frozen shower is typically caused by a blockage or freeze in the plumbing lines leading to the shower. This can happen when the temperature drops and the water in the pipes freezes, preventing water flow. Common symptoms include no water coming out of the showerhead, icy buildup around the faucet, and potentially burst pipes.
The best solution depends on the extent of the freeze. If it's a minor freeze, you may be able to thaw the pipes by directing a space heater or hair dryer towards the affected area. However, if the freeze is more severe or the pipes have burst, it's best to call a professional plumber. They can safely thaw the pipes, identify and repair any damage, and get your shower working again.