If the heater is an electric unit.
Test heating element water heater.
If it has a disconnectable plug unplug it.
Steps for water heater element testing turn the breaker off.
The water in the heater should be lukewarm or colder.
Make sure you test both screws on the face of the element.
Using the multimeter 1.
Place the remaining probe against the metal base attached to the element where it.
If you want to test a thermostat on an electric water heater you will also need to check the heating element.
Each of a hot water heater s elements has 2 electrical wires.
Locate the water valve at the bottom of the water heater.
Drain the water from the water heater.
Hold the multimeter prongs to the.
Leave the upper thermostat in the lowest setting and test the lower thermostat.
Turn off the breaker switch to the hot water heater at the breaker box.
Attach a garden hose.
Wait for the.
This is important especially as open and grounded heating elements result in inaccurate tests.
If the water heater is hot run hot water in the building with.
All the tests that you.
Turn off electrical power to the water heater you should have done this earlier if you read the instructions above.
To look for faults you will need to use a screwdriver.
If it does not have a.
Disconnect the water heater from power source.
A multimeter is a tool used to measure electrical.
The lower thermostat has only two terminals.
How to check a heating element in a water heater step 1.
Set your multimeter to the lowest setting for ohms of resistance.
The reading on the multimeter should be zero.
Use the screwdriver to set the lower thermostat to the highest setting.
Touch one probe of the multimeter to each terminal on the lower thermostat.
Testing a water heater heating element 1.
Determine which of the two heating elements in your water heater could be the problem by turning on the water at.
Take 1 of the wires off of a water heater element.
Touch each screw with one of the multimeter probes.
This is the most important step you should always take while testing or cleaning any kind of.
You will also need to check the water heater thermostat with digital multimeter tools.
Testing hot water heater elements is an easy project that even a beginner can master in a few minutes.