Again if the circuit breaker trips continually, chances are that the thermostats have a short circuit. To test the lower thermostat, turn the top one to its lowest setting and the lower one to its highest setting. Similar to the way in which oven heating elements work, the heating elements in a water heater … 230V and 240V Continues Dual Element Electric Water Heater Thermostat Wiring. Fold back the insulation over the thermostat. He has been published in "The Family Handyman" magazine and has experience as a consultant developing and delivering end-user training. Gas water heaters have a gas burner that heats the water from below the tank. The thermostat on the right is the lower thermostat. For a replacement kit containing 2 heating elements, upper and lower thermostats, and seals we recommend the Rheem SP20060 Electric Water Heater Tune-Up Kit available at It’s a universal lower thermostat manufactured by Rheem. If you have a voltage stick you can use that as well. $35.09 $ 35. Head over to the circuit breaker box and locate the switch that’s labeled ‘Water Heater’ or something similar. Many modern homes come with dual-element water heaters. I started to help people better understand the home inspection process and answer questions about homeownership and home maintenance. WARNING: Working with electricity is very dangerous and can kill you. An electric water heater thermostat tells the heating elements when to heat up. A bad thermostat. If it doesn’t, the upper thermostat is failed and needs to be replaced. Do not remove the plastic personnel protector covering the thermostat itself. FREE Shipping. Insider’s Tip: If you plan to replace your heating element with your new thermostat, you’ll need to drain the water heater. Step 3. There are more than 50 brands of residential tank-style electric water heaters on the market and the thermostats are designed to interchangeable on most models. AU $213.05. Turn it off, ensuring you turn off both switches if it’s a 220v switch. There’s no need to replace the whole heater if you can save yourself time and money with a simple thermostat replacement. Lower water heater thermostat. It calls out to the upper electric water heater thermostat, and as long as the upper half of the tank is still hot, it will energize the lower element. In an electric water heater, the water is heated by electric upper and lower heating elements that extend into the water tank. This temperature setting is important because anything higher can become a scalding hazard for young children or the elderly. Compare; Find My Store. A dual-element water heater uses two heating elements controlled by two separate thermostats. These elements are designed to cycle on and off one after the other to keep the water in the tank hot and ready for use. For most homeowners, storage-type water heaters set above 120°F are simply using more energy without providing any additional benefits. Once you’re done testing your water heater thermostat, you can reconnect the wiring and close up the access panels or proceed to the steps to replace your thermostat. Check to see if the high limit reset button has tripped. The top thermostat in most water heaters accepts the main power connection and passes electricity to the top element and also down to the lower thermostat. If you’re getting some hot water, and you can hear the unit heating, check the thermostat set point. Adjusting an Electric Hot Water Heater Temperature Thermostat Setting Adjusting an electric hot water heater temperature thermostat setting is a little more involved, but still relatively easy. The wires that are attached to the #4 second from top right side terminal are burned. Emrah Oruc is a general contractor, freelance writer and former race-car mechanic who has written professionally since 2000. If you only prefer to only purchase the upper thermostat see the Rheem UV11698 UV11698-Thermostat-Electric. Be sure the power is OFF before doing any work with wiring and electrical connections. With the black connector touching the water heater, touch each leg to confirm there’s no power. Compare; Find My Store. Be sure to check the water heater periodically over the next few days. Turn the upper thermostat to it’s highest temperature, and if checking a dual element heater the lower thermostat to it’s lowest setting. Sometimes this button will trip if: Using your phone or a digital camera, snap a picture to provide a reference if needed to identify which wires are connected to which terminal. The meter should read 0. 230V and 240V Continues Dual Element Electric Water Heater Thermostat Wiring. The lower thermostat only controls the lower heating element and has two wire connections. This is known as a flip/flop system. Head to your circuit board and turn off the water heater’s breaker. "I have an electric water heater that isn't working?" If not, the lower thermostat will need to be replaced. Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each Upper Thermostat 4.6 out of 5 stars 167 $35.20 $ 35 . for pricing and availability. Electric Water Heater Thermostat Replacement Step 1. Q. Check electrical panel to be sure that circuit breaker is in the "On" position (not in tripped or off) or fuses (if used) are installed securely and not "blown". This Rheem Marathon Lower-Element Thermostat is specifically designed to be used as the lower thermostat in a Rheem Marathon residential electric water heater. Here i a shown a electric water heater geyser, in which two heater element instill upper and lower. We can either call a licensed plumber or fix it yourself. "I replaced the thermostat in my Tiny Titan water heater. The upper thermostat is the primary one that contains the high limit switch and the lower thermostat is used to detect the change in the temperature of the water. An electric water heater has two thermostats located under access panels on the side of the tank. How to Adjust the Temp on a Rheem Water Heater, How to Replace the Thermal Fuse on an Amana Gas Dryer, How to Remove a Water Heater's Drain Valve, How to Open a Refrigerator Evaporator Cover, State of California: Water Heater Bracing Requirements, How to Install & Adjust a Refrigerator Thermostat, How to Remove a Baseboard Water Heater Before Drywall, How to Fix the Thermostat on a Hot Water Heater, How to Remove the Access Panel on a Heater Filter. Electric Water Heater Thermostat Replacement Step 1. The main difference between electric and gas water heaters is the heat source. eval(ez_write_tag([[300,250],'homeinspectioninsider_com-box-4','ezslot_4',159,'0','0'])); For a replacement kit containing 2 heating elements, upper and lower thermostats, and seals we recommend the Rheem SP20060 Electric Water Heater Tune-Up Kit available at How Electric Water Heater Thermostats Work. Single Phase 240V and 230V Non-Simultaneous Dual Element Water Heater Thermostat Wiring. I'm a licensed Home Inspector, Certified Master Inspector (CMI), and FHA 203k Consultant. If water has remained cool, continue troubleshooting steps below. is owned and operated by Hubert Miles is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Fortunately, most water heaters can be repaired relatively easily. But the lower one detects any change in the temperature of the water. If you haven’t tested or replaced a water heater thermostat before, it can seem like a daunting task. for pricing and availability. Most manufacturers recommend changing the lower thermostat … A water heater may contain one or two thermostats, called upper and lower thermostats. The cure for a hot water problem may be as simple as turning the temperature setting up. I've been conducting home inspections since 2002. Be careful not to break the retaining bracket. If you can stand shorter (or cooler) showers, turning down the thermostat on your water heater is a great way to save on your electric bill each month. When the lower thermostat senses the water is too cool it turns on the lower element. Second, by sensing the presence of heat, the thermostat can control electrical current that is sent to another thermostat or to a heating element. More Buying Choices $23.00 (13 new offers) New WH9 Apcom Electric Water Heater Thermostat for Lower Element Thermodisc WH5. This photo shows a set of upper and lower thermostats for a typical residential water heater.
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