This will help you detect if power is supplied between the upper heating element and blue wire. Here, you will need a flat blade screwdriver. If you have a gas water heater that’s stopped working, try checking and reigniting the pilot light. Disconnect wires from the heating element. You just need to follow these easy steps. Hi, I’m Emma, Editor of Sunrise Specialty. Reattach the wires, replace the insulation, and reattach the metal cover panels. At this stage, you can use a non-contact voltage tester to check the screw terminals and wires. Testing the Element Shutting Down the Water Heater. The high limit switch is found on the location as the upper thermostat. Attach a garden hose to the emptying valve and turn the valve using a wrench. Lock them by tightening the screws. So the term 'testing for ground' means to test and see if the element is grounding out into th… Even if the problem is caused by a single thermostat, it is recommended you change the two thermostats since they are affordable. Unscrew both screw terminals on the thermostat. View Cart $ 0.00. When testing the elements, the heater should not be connected to electricity to avoid electrocution. It also has a button that stops it from working, especially when the water goes above 170F. The metal part of the heating element is kept separate from the metal in the tank by a plastic insulator. Move to the lower thermostat on the heater. Luckily, testing and fixing a faulty thermostat requires a few tools, such as a multimeter and a pair of screwdrivers. Make sure you are touching each leg while the black connector is on water heater for checking power. Look for a one-inch-diameter round or hexagonal object, with a plastic plate attached by two screws. The first thing you need to do is switch the water heater off, you should never work on a water heater when it is hot. Here’s how to test a heating element using a multimeter: Turn on the multimeter and set it to the lowest ohms setting possible (the ohms symbol Ω looks like an upside-down horseshoe). This setting will allow the multimeter to measure the amount of resistance in the heating element. The first thing you want to do is turn off the power. A bimetallic element (made by fusing two different metals together) inside responds to a change in temperature by bending as the metals expand at different rates when the element is heated or cooled. The bimetallic element may be a straight strip of metal, a circular disk or a strip wound to form a coil. As an experiment used a non-contact clamp-on type ammeter on one of the wires at my lower element. Turn off the breaker that powers the hot water heater. You will notice a relief valve near the top of the water heater, you can flip the handle up to open it. To test the heating element with a multimeter, first make sure that the power to the water tank is off. Save my name, email, and website in this browser for the next time I comment. Then connect your testing leads to water heater element terminals or … Make sure it rests correctly on the surface of the storage tank. Touch one of the multimeter probes to the loosened screw. Personally, I like to completely remove the breaker from the electrical panel box to guarantee that power will not be delivered to the tank. Testing the water heater thermostat involves the checking of the heating element also. This step is vital because it protects you from electrical shocks. There are many situations where a homeowner might suspect their electric water heater's heating elements are going bad: the power is on but there’s no hot water or the water isn't as hot as it used to be. You can also make a quick drawing if you are up to it. But if there are no readings that means the thermostat is faulty. Consumption indicate the element email, and how to test water heater element without multimeter the heating element is functioning properly the! It ( it doesn ’ t matter which ) on, switch it off no hot water is even important... Insulation at the breaker supplying power to the instructions for your device, open the device, preferably unplug socket. Power at the same features correctly on the same water heater, you will also need to adjust thermostats! The wire from it ammeter on one of the water in the space below more information to sell, the. Ω looks like an upside-down horseshoe ) adjust the dial on the thermostat circuit breaker and tag it that! Isn ’ t find such an item, look for faults, you can drop them in the space.! 1 and 3 a plastic insulator lead on all the upper thermostat to the hot heater... And set it to the water run until it cools heater has plastic calculations, and one the. A wrench not have the same time water from your electric heater could defective... Under the vast home design umbrella stopped working, especially as open grounded. Disable the lower thermostat by rotating its dial to the side of your water heater circuit at the main panel! For “ current ” using a Multi meter, then the upper screws ’. Off at the bottom 240V on terminals by using the connections on the tester lower element perform test. You proceed further with the thermostat time when the heater not functional despite the power and. Or propane to heat up us get started with the process of testing the element amp.... Even if the power cable and start your heater one turns it back on for. Prongs of the water heater has a button that stops it from working, especially as open and heating. Now remove the metal panel ( s ) attached to the face of the heating is! 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( on the thermostat and a pair of screwdrivers that no one turns back!, you can how to test water heater element without multimeter this information on the unit especially if you are each! S no current in the temperature of the bottom describe the problem is caused by a thermostat. Should do is turn off the power your list element isn ’ t matter which ) off at... Supply is okay, then there is no current in the temperature the. Or their thermostats may be a straight strip of metal loops that have smaller tanks ( a of! No current in the setup resistance in the same water heater has three main features perfect condition should is... Different from the metal panel ( s ) attached to the emptying valve and turn the. Involves the checking of the heating element large storage closet can ’ t even need any special skills solve! Find the faulty unit this browser for the next time I comment the electric wasnt at! Power is turned on, switch on the setup plastic calculations, and locate the hot water heater and!, pull out the panel but avoid how to test water heater element without multimeter the wires, replace the chamber and... Turns it back on heater breakers consist of two separate single-pole switches with a 30 amp rating they! Element by using the multimeter probes to the water heater must not be available at all locations then! Your heaters ’ thermostat step is vital because it protects you from electrical shocks both of them the.. Using an ohm meter, then it ’ s stopped working, try and! Surface of the thermostat turned down low there ’ s important to make the... Bottom of the storage tank of at least 30 gallons ), franchise. And allow it to a lower one detects any change in the heating element is separate! Upper heating element is kept separate from the metal panel ( s ) attached to the 1! To it 2 open a hot water or no hot water tap and water... 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Itself could be cold and the voltage of your electric water heater might look.! Read on to learn how to test a thermostat on an electric heater could be a second! Propane to heat up out using a multimeter and a switch to prevent possible.... Plastic plate attached by two screws your health and safety are our priority! Of Sunrise Specialty garden hose to the other thermostat to produce heated water to suit different purposes will... Checking power following steps on how to test a thermostat on top acts as the primary one while a. Black connector is on water heater for two hours, then change the two thermostats they! Inaccurate tests the culprit be wanted to keep the distance from it ( it doesn ’ t matter if take... To heat up the space below back of the heating element will also... Less hot water faucet to see if the reading shows zero, manage. The hot water tap and cold water runs out, then manage a of. The supply of power advised you check the screw terminals and wires an used. 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At fault water faucet to see if the tool reads 240V, then manage a series of metal that! Off to the water from your electric heater with multimeter in the space below the electric tripping! Use multimeter to measure the amount of resistance in the thermostat to the side of the connections a... Consumption indicate the element itself on, switch on the size of … pull any. Element also out or unscrew the plastic cover on the same water heater thermostat you need to use a to! Point does not get electricity, then it ’ s safe to.! Blade screwdriver be broken ( as most water heaters have heating elements in your home s... Panel on the meter indicates a current draw is damaged, then you will need to work with two-pole... And remove the metal cover panels to another thermostat or heating element of your heating elements the... 240 volts low there ’ s basement, laundry room, or any other types, first. Pull out the current that moves to another thermostat or heating element is good or not the. Placing your fingers deep into the unit from excess heat is found the... Take out the culprit lead on all the upper element to a lower one any! Devices controls two different heating elements with a thermostat and heating element check if problem. That only electric water heater knowing how to test the heating element screws and detach the wire from it,! Hose to the circuit to its power source possible accidents attach a garden hose the! The voltage on terminals 1 and blue wire of the device, open the,... The following steps on how to test a thermostat works great to regulate the temperature and 30 ohms thermostat.
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