Thermocouples are temperature sensors that serve as safety shutoff devices for gas appliances. If the gas pilot light on a hot water heater refuses to stay lit, replacing its thermocouple may be the ...

Q: My wife started complaining about a lack of hot water, so I ventured out into the garage to check out the water heater. I took the door off and peeked inside and discovered there was no flame.

The information below on assorted water heater problems assumes that the water heater was properly installed and was operating correctly before any problems developed. This is just a general guide to ...