The answer to 'shower not working' is that there are several common causes, including issues with the shower valve, showerhead, water supply, or drainage. Symptoms may include no water flow, low water pressure, or leaks. Solutions can range from simple DIY fixes to more complex plumbing repairs that may require a professional.
Some common causes and solutions include: a clogged showerhead (clean or replace the showerhead), issues with the shower valve (may need to replace the cartridge or entire valve), problems with the water supply (check for leaks or low water pressure), or a clogged drain (use a drain snake or call a plumber to clear the blockage).