Problem
A burning smell comes from the water heater while it is running.
Possible Causes
Dust burning off heating elements
Electrical component overheating
Sediment buildup in the tank
Loose wiring
How To Fix It
Turn off the water heater temporarily
Inspect the area around the heater for dust
Check the breaker panel
Allow the heater to cool before restarting
When To Call A Professional
If the burning smell continues, a technician should inspect the heating elements and electrical components.