Considering this, what would cause a water heater to not heat?
If an electric water heater is not producing hot water, it could be a simple problem like a blown fuse or tripped circuit breaker. … Other simple solutions include an unplugged or faulty power cord for electric water heaters. For gas water heaters, it could be as straightforward as being out of gas.
Also know, where is the reset button on RV water heater? Find the reset button near the heating element. The reset button is red and is probably protruding out if it requires resetting. Push the reset button in with your finger until it clicks into place. The top of the button remains flush with the side of the water heater.