Copyright Tankless Reviews 2021 © Use the screwdriver to set the lower thermostat to the highest setting. Turn the shut off valve on the gas line to the on position (parallel with the gas line). Mainly, the thermostat is used to adjust the temperature of water for different purposes.For example, the temperature of water required for doing dishes can differ from the temperature of water required for taking a bath. Electric Water Heater Thermostats (36) Gas Water Heater Thermostats (3) Water Heater Flammable Vapor Sensors (7) Water Heater Gas Valves & Controls (33) Again using the Philips screwdriver to turn the dial of the lower thermostat’s temperature and increase it. Make sure it fits properly and doesn’t have any open space. Make sure you’re still wearing safety gloves. You can do this by locating your circuit breaker and turning off the power in the vicinity of your water heater. If it goes bad in cold days, then your life may become a survival story and you’ll be in an internal battle with your mind about whether you shower or not. Remove the insulation underneath as well. A water heater generally has two thermostats. There's no need to drain the tank, sinc… Now check if the heating element is getting any current or not. Adjust the temperature of the thermostat to 120ºF. If it is defective then pull it out and replace it with the new one. You just have to be a little careful to avoid any kind of accident. By looking at the reading of the multimeter you can decide whether your water heater thermostat is working properly. WHOM THE WATER HEATER WAS PURCHASED. Fit the insulation covering back on and place back behind the panel. Place one probe on the upper contact screw of the lower thermostat and other probe on the tank’s surface. It’s better if you find the new thermostat of the same brand but if you are not able to do so then you can also look for the suitable one from different manufacturers. GAMA certification applies to all residential gas water heaters with capacities of 20 to 100 gallons with input rating of 75,000 BTU/Hr. If your rig has battery disconnects, you can turn them both off instead, but be sure to check with a circuit tester to make sure that there's no DC voltage in the water-heater compartment. Step 1: Turn the power off Head to your circuit board and turn off the water heater’s breaker. One is in the upper level and the other on the lower level. Before starting the steps make sure you have the following tools – A Philips screwdriver, a multimeter, safety gloves and safety shoes. A thermostat is necessary for maintaining the heat flow at an optimal rate in your water heater. Or, if you have a friendly neighbor, maybe you can go to his/her house to bath. Set the body of the multimeter on the ground at the base of the water heater. The water heater thermostat is part of the gas valve. Follow the steps below: Testing your water heater’s upper thermostat: Shutdown the power on your water heater. If you think you are having a problem with your gas valve, see the article, ' Troubleshooting Gas Valve Problems ' for more information. Use the screwdriver to reduce the temperature of the lower thermostat and take it to the minimum possible value. It activates the heating element to heat the water when it gets cool and it stops them from heating the water once it has reached the desired temperature. All you need is some tools (screwdriver and multi-meter etc. ) Ask if you have questions. All you need is some tools (screwdriver and multi-meter etc. Ensure your multimeter is set to RX1. First thing you should always do while testing any kind of electrical appliance is to switch the power off. To test the lower thermostat, turn the top one to its lowest setting and the lower one to its highest setting. Hold the multimeter prongs to the element screws to test for flow. Attach the plastic protector back to the thermostat and make sure that the red colored ‘Reset’ button appears through the hole on the cover. STEP 3: Now set the new thermostat at the same place using a screwdriver. Turn off the power to your water heater. Generally, the volt of a water heater is 240 volts (but may be 120, depending on your water heater), if you get a reading of 240V on your multimeter then the current is flowing properly and the thermostat is ok. Locate the breaker inside the panel box labeled “water heater” or “hot water” and turn the breaker off. Decrease the temperature of the upper thermostat to lowest setting. If no reading is shown then your thermostat is faulty and you need to replace it. So you may rather use this money on something a little more fun and do it yourself. Adjusting the temperature isn’t difficult, especially if you have a water heater with a dial thermostat. However, if your tankless water heater frequently becomes overloaded, you should consider either upgrading to a tankless water heater with a higher capacity or adding a second unit. See separate bulletin on this subject. You may see that there is no hot water or maybe there might be hot water initially but suddenly it becomes cold again. Touch the terminal 1 and blue wire of the heating element with the prongs of. The only big difference from a light switch is that they have a mechanism that measures the temperature and when it reaches a predetermined point, … Tankless.reviews is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Check both of the wires above the reset button to see if the voltage is coming in the water heater or not. The thermostat and the heating element are below it. Place the leads from your multi-meter across the terminals at the top of the thermostat pictured above. Test the defective thermostat, using a multimeter. 3. You can switch off the circuit breaker from the main circuit of your home that provides electrical power to the water heater. What Brand of Water Heater is the Most Reliable? You can find our recommended multimeters here. STEP 4 : After that, you can set the thermostat according to your desired temperature bu using a flat blade screwdriver. Place the prongs of the multi-meter on the terminal 1 and red wire of the lower heating element. Turn it to the highest temperature you can see in the thermostat. For gas water heaters, you may need to relight the pilot light. If there is power, test the lower thermostat. A thermostat can be tested to see if it is working properly or not by using a multimeter. Didn’t know you could adjust the thermostat on your water heater? and basic knowledge of the replacement. d) If specified voltage is not indicated, and water temperature is 120°F or lower, the switch is defective and must be replaced. Sometimes on cold days you may face some problems with hot water in your taps. The high limit switch that is located near the upper thermostat is used to protect the water heater from overheating. After putting the safety cover on, replace the insulation. When the thermostat is turned up, a small electrical signal is transferred from the gas valve to the heater, which prompts it to be open and pass on a stream of gas to the burner where it ignites the pilot. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER. Once you hear the click off sound then get assured that the thermostat is good. If you get a power reading, start to reduce the temperature of the lower thermostat. Honeywell water heater gas control valve recall. Touch one probe of the multimeter to each terminal on the lower thermostat. But one thing you should always keep in mind that, switch off the power supply before starting replacement to avoid adverse circumstances. The first step in replacing the thermostats is to disconnect the ground strap from both the house and chassis batteries. Check the thermostat Energy.gov recommends a water temperature of 120 degrees Farenheit for your water heater. Before you do any kind of work or testing on your water heater, shut off the breaker to the heater. So safely remove the access panels from your water heater, make sure you’re wearing safety gloves for protection. Generally, the ideal temperature for hot water heaters is 120 degrees Fahrenheit. Never use a lighter or any kind of flame to check for gas leaks. Get The Most From Your Tankless Water Heater. For your own safety, shut off the power to the water heater at your home’s main circuit breaker. Restore power to the water heater. For this, all you need is to detect the faulty unit of your thermostat and fix it. In some cases it is recommended to keep the thermostat temperature down to prevent exceeding the limit. Honeywell water heater thermostat valve. It will stop working if the temperature of the water goes above 170 F. You can also reset your settings using this button. You don’t need professional skills for this. It’s very easy to test and replace the faulty thermostat of your water heater. Do the opposite for the lower thermostat now. Best Electric Tankless Water Heater For RV, 7 Best Electric Tankless Water Heater Reviews, Best 6 Takagi Tankless Water Heater Reviews 2020, How to Test Water Heater Thermostat – DIY, Replacing the Faulty Thermostat on an Electric Water Heater. This will keep you safe from getting an electric shock from the heater. Upper Thermostat Test. How to Prevent Water Heaters from Overheating, Debunking The Myths About Tankless Water Heaters, Maintenance Tips for Tankless Water Heaters. Once you've made an adjustment, wait at least three hours before testing the water temperature again. If it shows the reading of 240V then it means power is supplied and now you can move the prongs to the terminal 2 and the blue wire. If yes, then start following the steps below: A water heater has two different thermostats on it. Check for power to your water heater. Now that you have detected the faulty thermostat, its time to replace it. To check it, place the probes of the multimeter on the screws touching the heating element. One is at the top and the other is at the bottom. Make sure to place it correctly on the storage tank. Set the tip of 1 prong in the center of 1 of the water heater element’s screws. Then you’ll see a plastic safety cover on the thermostat and heating element. If no power, this thermostat is bad and needs to be replaced. If it is defective then pull it out and replace it with the new one. Your meter should read 240 volts. To avoid this, from time to time, you should test your water heater thermostat. In this case, also check the current at the high limit switch. Category. Check the temperature of the water exiting your faucets. How To Test a Thermostat . Attach the circuit wires to their respective terminals and then tighten the screws. One is the heating element, second is the power switch to avoid overheating problem and the last one is the thermostat. Now that you have installed a water heater, it’s time to understand some of its components, so that you won’t face any difficulty in order to maintain it. Touch one meter lead to the top screw and the other lead to the metal body of the water heater. In a gas water heater, a broken thermostat won't shut off the burner when the tank water reaches the set temperature. It does this by controlling the heating element’s behavior. Puretanklesswater.com 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 amazon.com. Make sure there is voltage coming into the water heater by checking the 2 wires above the reset button. Replacing the thermostat of an electric water heater isn’t rocket science, in fact, it’s very easy. Other than this, the thermostat controls the current flowing from one thermostat to another thermostat or from the thermostat to the heater. or less. If it isn't, the upper thermostat is not sending power to the lower one. If you want the extra hot water then you are advised to change both thermostats even if only one is damaged. Upper level and the last one is the power then the thermostat may be.... Wires from the heater conducting part of the lower thermostat and take it to thermostat! 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