The answer to 'water softener no hot water' is that a problem with your water softener is likely causing the lack of hot water. This can be due to issues like a malfunctioning softener, incorrect settings, or a blockage in the system. Common symptoms include low water pressure, discolored water, or a complete loss of hot water.
Some potential solutions include checking the softener settings, cleaning or replacing the resin, or troubleshooting any mechanical issues. However, it's important to determine the root cause to fix the problem properly. If you're not comfortable diagnosing and repairing the softener yourself, it's best to call a professional plumber who can properly inspect and service the system.