You do not need to perform this step if the Ohmmeter reading is any value except infinity or zero.Ī defective water heating element requires replacement. Replace the heating element if defective. You can also use the same procedure to test water heater thermostat. You have a working water heater element if the Ohmmeter reading is not zero or infinity. A defective water heater element will cause the needle not to move (read, infinity). If your Ohm meter is analog, watch the needle movement. A “zero” (0.0) reading shows that electricity does not flow through the water heater elements. Hold the noncontact voltage detector over the electrical wires connectedĬheck a water heater element by disconnecting the wires from the heating element terminal screws.Ĭlamp the red Ohm meter probe to one of the element screws and the black electrode to the other terminal screw. Test the heating elements.įirst, check the heating elements for the presence of voltage. You can check the diagram in your owner’s manual if you are unsure where the screw terminals are.Īssess the screw terminals for corrosion and other signs of damage or advanced wear. Notice the heating element screw terminals. You will replace this in the water heater after the testing. Carefully fold it outward, maintaining the insulation’s integrity. You should see an insulating material covering the water heater elements. A “live or hot” wire will cause the tester to emit a beeping sound or light up, indicating voltage in the system. Position the noncontact voltage tester over the electrical cables without touching the wires. Look for the cables that supply electricity to the water heater, especially near the appliance’s high-temperature cutoff switch. Use a noncontact voltage tester or detector. There is only one way to ensure you will not get electrocuted when you open the access panel and test the water heater elements. Ensure there is no power in the water heater. Remove the screws and place them in a container, ensuring you do not lose them. Grab your screwdriver and loosen the screws securing the water heater’s access panel cover. Wait at least two hours for the water to cool and verify it by opening a hot water faucet and feeling if it is still warm. Open the access panel.ĭo not check heating element immediately after disconnecting the water heater from the power source. Proceed to the house’s electrical panel, open the cover, and look for the water breaker – LABEL – in the circuit breaker.Īlternatively, you can remove the water heater fuse from the fuse box. You do not want to get an electric shock or similar “accidents” undermining your health. Disconnect the electric water heater from its power source.įor your safety and your family, always disconnect an electric appliance from its power source when working with it. Long-nose pliers and a screwdriver will also be necessary to access the heating elements for testing. The former identifies whether the voltage is present, while the latter assesses electrical continuity. You will need a noncontact voltage tester and an ohm meter to test electric water heater element units. We can advise onsite whether there are any other issues you need to be concerned about, giving you options before any further costs have incurred.What to Prepare to Test Water Heater Element Without Multimeter If #1 applies then this unbeatable special is what your looking for!Ī hot water cylinder special that includes everything you need to get your hot water back up and running. If your cylinder is not producing hot water then one of the above will definitely apply. (A simple phone call to your power provider clarifying this could save you $$$)
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