Always disconnect the power or shut off the breaker before doing any work on a water heater. Regardless of whether a water heater is gas or electric, similar problems can arise, and costs to replace the thermostat or heating element in a gas or electric water heater are usually about the same. Q. Learn how to replace this inexpensive part and keep your hot water heater working for years to come. Replace the safety cover(s) and access panel(s). Save my name, email, and website in this browser for the next time I comment. At first I was changing the fuses about once a month now it is everyday, any ideas, a friend told me it was most likely the thermostat. As the water heats, pressure builds inside the tank. If the multimeter shows power at the element, allow a few minutes for the water to heat up. Replace this inexpensive tube and you will have hot water again!. The unit is 14 years old but has never seemed to have a problem until now. Turn the power to the water heater back on. It appears that only one thermostat is working on my water heater and one of my water heater breakers will not reset any suggestions ? If not, the lower thermostat will need to be replaced. A wiring diagram is a simplified standard pictorial representation of an electrical circuit. A. Gas water heaters use a different type of thermostat system. Tools you’ll need#2 Phillips screwdriverFlat blade screwdriverWARNING: For your safety, be sure to carefully read and understand the manufacturer’s Use and Care Manual, in its entirety, prior to operating, repairing or adjusting the water heater. A hot water heater that doesn't heat might just need a new thermocouple. Use your multimeter to check for power on the upper element terminal screws. If no power, this thermostat is bad and needs to be replaced. Turn off your gas, and the water inlet and outlet valves. Gas Water Heater. Visit https://parts.rheem.com to buy manufacturer authorized parts for Rheem, Ruud, Richmond, Marathon, Eclipse, Vanguard, Hotpoint and General Electric (GE) water heaters. The first step in replacing the thermostats is to disconnect the ground strap from both the house and chassis batteries. We also offer many universal parts designed to fit most other brands of water heaters.A failed thermostat is a common reason why you’re not getting any hot water from your electric water heater. You don't want any electricity at the contacts while you're working. I have turned up the thermostat. Flush the heater to remove sediment from the tank. While these water heaters are relatively simple in the way they work, they still have parts that will fail occasionally. While you’re in there, might as well replace them all, given the duty cycles the current thermostat is undergoing until a fuse blows. You can pick up a good inexpensive multimeter online or any local hardware store. Electric Water Heater Thermostat Replacement Step 1. Remove the access panels to the elements along with the insulation underneath. The expected service life of a conventional water heater averages 8-10 years (20 years for a tankless version). This is an obvious reason for using the thermostat on your gas hot water heater. Troubleshooting Gas Water Heater Thermostats Adjusting the Hot Water Temperature. Locate the access panels and carefully remove them. Still not real hot. Repeat for the lower thermostat on dual element models. We live on Saipan NMI so the daily temp is 75/8 to 89 to 91 F. I say the turn on temp. Disconnect the cold water line and lift the tube out. The thermostat is equipped with a thermal cut off switch. The upper and lower thermostats in an electric water heater must fit snug against the tank to properly transfer heat in order for thermostats to detect the water temperature correctly. While most thermostats are interchangeable, the best results come from accurately matching the components. An electric hot water heater has two thermostats controlling two separate heating elements — one in the upper half of the tank, one in the lower half. Remove the burner assembly and detach the thermocouple. More likely clogged/corroded elements. If there is no reading, the upper thermostat will need replacing since it provides voltage to the lower thermostat. If at any time you are unsure or uncomfortable about the suggested repair or service discussed herein, stop any activity and immediately contact a licensed plumber. There's no need to drain the tank, since the thermostats are on th… Hardware and even big box stores like Home Depot and Lowes will have this pipe. Allow the water to run for at least one minute to ensure the water is at the maximum temperature and then fill the cup. Home » Maintenance » How To Replace A Water Heater Thermostat. The hot water rises and comes out the top of the tank. Rheem manufactures a variety of hot water heaters, the most common of which are the gas and electric models. Replacement water heater parts and kits are available at www.waterheaterparts.com. 99. Answer: It means you need a new thermostat, or possibly a new water heater if the threaded opening is corroded to the point it will no longer seal tight. Restore power and allow the water heater to work for one hour before testing the hot water. Check out: https://www.waterheaterhub.com/common-water-heater-problems/. I am replacing fuses on my water heater daily, I noticed that the part of the fuse that is screwed in to panel is a light brown. Some models have a “vacation” mode where it will keep the water at about a 50 degree minimum to keep it from freezing in case really cold weather. Replace the heating element or thermostat. Step 2: Remove the outside access covers. The average thermostat replacement cost is between $100 and $300. Water Heater ECO Thermostat Assembly Compatible with Atwood 91447,Replacement Part for Water Heater Repair Parts Fit For RV,RV Thermostat Service. If there is no voltage at the element, test the lower thermostat for power. Scalds and burns are possible. When you turn on a tap, pressure sends hot water out of the faucet. Locate the breaker inside the panel box labeled “water heater” or “hot water” and turn the breaker off. Call your local department of inspections and ask if you need a permit. Installing a tankless water heater is a greater upfront investment, but these units can significantly cut the cost of monthly utilities. For the sake of safety, use a voltage meter to make certain the power is off. Upper and lower thermostats power as well as signal connections between the tools say the turn temp... Version ) work for one hour before testing the hot water heater thermostats Adjusting the hot water again kits... 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