The answer to 'sewer line no hot water' is that the issue is likely due to a problem with the water heater or the plumbing system that supplies hot water to the sewer line. This could be caused by a malfunctioning water heater, a blockage in the hot water supply line, or a problem with the valves or fittings in the plumbing system.
Some common symptoms of this issue include no hot water coming out of the sinks, showers, or other fixtures connected to the sewer line, and the water may have a foul odor or discoloration. To troubleshoot the problem, you'll need to check the water heater, inspect the plumbing system for any leaks or blockages, and ensure that the hot water supply line is properly connected and functioning correctly.