Electric water heaters are high voltage 240 volt appliances that are dangerous to work with when the power is on.
Electric hot water heater thermostat troubleshooting.
The lower thermostat just controls the lower element.
Further it does not discuss gas or propane fuel types nor plumbing related issues.
If you are planning to fix the water heater yourself here are the steps to guide you through.
Troubleshooting the thermostat on a hot water heater.
You can test them with the power off using an ohmmeter to measure resistance or with the power on using a voltmeter to measure voltage.
The water could be hot enough to cause burns or it could lead to.
The thermostats work by turning the heating.
Electric water heaters usually have two thermostats and to heating elements.
An upper thermostat located behind a cover high on the heater tank and a lower thermostat located behind a panel low on the water heater tank photo at left.
Depending on the gallon size of the tank an electric water heater consists of one or two thermostats which regulate the temperature of the water.
If the hot water heater is not working one of the thermostats may be bad.
Electric water heaters have one or two elements and each is controlled by a thermostat.
Not the microprocessor types that are starting to appear in stores.
Troubleshooting an overheating electric hot water heater.
You can easily repair and replace if necessary the controls and heating elements of most common residential 120 208 and 240 volt electric water heaters with traditional line voltage controls.
Ran out of hot water.
When the upper element works and the lower one does not you have a low supply of hot water.