5. http://www.youtube.com/FergusonEnterprises, https://www.houzz.com/pro/fergusonshowrooms/ferguson-bath-kitchen-lighting-gallery, Select a Store for Accurate Local Pricing, How To Improve Water Heater Efficiency With A Tank Booster, Best Pull-Down Kitchen Faucets That Won't Break The Bank, Drinking Fountains & Bottle Filling Stations, How to Grow Your HVAC Business With Smart Home Installation Services, Tips to Prepare Contractors for Cold Weather, Guide to MaP Toilet Testing for Low Flow Toilets, Benefits of Claiming Your Business on Google, 5 Common Trenching & Excavation Safety Hazards, 4 Tips to Minimize the Dangers of Dust Inhalation, Bradford White 4.5kW 208/240V Element Set, Bradford White 4.5kW 208/240V Water Heater Element, Bradford White 1.5kW 120V Water Heater Element, Bradford White Lower Thermostat Sensor for Bradford White ECO 7542 Commercial Gas Electronic Ignition, Bradford White Lower Thermostat Sensor for Bradford White D38T155 Commercial Gas Electronic Ignition, Bradford White Electric Single Thermostat for Bradford White M230R, Bradford White Surface Mount Low Temperature Electric Thermostat for MII50 Series Commercial Electric Energy Saver Water Heaters, Bradford White 208V 1500W Screw-In Water Heater Element, Bradford White 208V 6kW Water Heater Element Conversion Kit, Bradford White 208V 9kW Water Heater Element Conversion Kit, Bradford White 208V 12kW Water Heater Element Conversion Kit, Bradford White 208V 15kW Water Heater Element Conversion Kit, Bradford White 415V 24kW Water Heater Element Conversion Kit, Bradford White 415V 27kW Water Heater Element Conversion Kit, Bradford White 415V 30kW Water Heater Element Conversion Kit, Bradford White 415V 36kW Water Heater Element Conversion Kit, Bradford White Metal Thermostat Well & Sensor, Bradford White 480V 6kW Water Heater Element Conversion Kit, Bradford White 480V 9kW Water Heater Element Conversion Kit, Bradford White 480V 12kW Water Heater Element Conversion Kit, Bradford White 480V 15kW Water Heater Element Conversion Kit, DoNotSellorShareMyPersonalInformation. Our comprehensive Bradford White Water Heater Troubleshooting guide will. Copyright Every Bradford White water heater comes with a safety feature named ECO (electric cut-off switch). Sound familiar? Next, I recommend you take a look at the circuit breaker to see whether it gets tripped or not. If button snaps back out, the temperature of the water is higher than the cut out setting of the limit switch. Products made by Bradford Bradford White Hot Water Heater Control Valve. Thirdly, test the thermostat electrically to know whether it gets defective or not. The switch will keep getting tripped until you get a new thermostat. therep49er 2.41K subscribers Subscribe 45K views 3 years ago How to replace the thermostat/well sensor with an upgraded Honeywell unit. Part # B4154655301. And your Bradford White Water Heater is not an exception to that. If its at fault, you will encounter the too hot water issue. This post was first published on 2022-05-05. Allow water temperature to drop. Perfect for a separate in-law suite or an unattached living space or work area. Bradford White is You can check that article here. Please try again or call us at 800-721-2590.ID: 439778454. Reset or replace thermostat(s) as needed. If you need to reset this component though, how can it be done? 2023 replace as needed. 6. Hook up a garden hose to the drain valve, place the other end of the garden hose to a floor drain or outdoor, and turn on the drain valve of the water heater. Thermostats make no contact with the tank. If you set it too low, just move the thermostat knob to a high setting. However, to resolve this issue in the long run, you should find out the reason behind overheating issue. You can reset the water heater by lighting the pilot and turning the knob to very hot for ten seconds, hot for ten seconds and to pilot for 10 seconds. Features: Bradford White ICON System - Intelligent gas control with proven millivolt powered technology and built-in piezo igniter. b) Set a voltmeter to the 300 volts scale. Ferguson Enterprises, LLC. If you own a Bradford White water heater and are looking to reset it, continue reading to find the steps to take. Remember to turn off the gas supply at the shut off. Set com bination/thermostat gas valve to correct position. During this brief period, please contact us via email: techsupport@bradfordwhite.com warranty@bradfordwhite.com. 6. However, if you experience power loss, have various components of the heater that seem to be having trouble functioning, or simply desire to get your heater working at a more efficient rate, a reset could be just the trick, but how can this be done? Excessive amount of water in drain pan/water dam. You will then turn the knob to Pilot Mode, continue holding it down, press the button directly beneath the knob until you hear it click, then wait for the Status light to flash green. Insufficient gas supply or low gas pressure. If you have the Honeywell gas valve on your Bradford white water heater, follow the below instruction to reset the FVS on this gas valve: Step 1: Remove the power connection from the water heater. Therefore, there are other reasons like high voltage situations can also burn the heating element. Then, clean the heating element or replace it if needed. As an affiliate of retailers(like Amazon), we earn from qualifying purchases. 4. Amazon.com: Bradford White Water Heater Thermostat 1-48 of 101 results for "bradford white water heater thermostat" Results Price and other details may vary based on product size and color. Turn the pilot light knob to the very hot position for 10 seconds. We sincerely apologize for any inconvenience. One thing I have noticed is that the temperature setting at the water heater can be very different from the temperature at the point of use. At the end of this sequence, the pilot light will begin blinking again. Repeat this attempt 5-6 times. Thanks for visiting us here at PlumbersStock.com. Our Lowboy Electric Models allow you to put an electric water heater just about anywhere even where a conventional upright tank will not fit. Check combination thermostat/gas valve for proper operation, replace if necessary. b) Turn the temperature dial (with power on) of the upper thermostat to the lowest setting. Disconnect gas supply line from gas control. Hang your water heater! Standing pilot remains on while set point knob is in OFF position. 1. The microwave has power but is not working. The limit can be reset at 120F or below. a) Depress the high limit Reset red button (with power on). What are the Symptoms of a bad WATER HEATER thermostat sensor? The process to reset a Bradford White water heater is simple and the steps to complete a reset can be found in the previous section titled Resetting Bradford White Water Heater.. It doesnt matter what causes the heating element to get damaged, you must replace it to get sufficient hot water. Turn the pilot light knob to the pilot position for 10 seconds. 1. When it comes to the primary components that owners think of when pondering their Bradford White water heater, the most common include the pilot light and the control knob. The vapor sensor on a Bradford White water heater is able to detect fumes that are capable of ignition and when this happens, the water heater shuts off and will not run until those fumes have been cleared. | Manufacturer Part #233-45651-01. Need hot water for just a smaller room or area? Tiki Shop. Terms of Site Use| Even though it comes in a small size, our low boys are big on features including our HydroJet Total Performance System and Vitraglas enamel tank lining to deliver lasting performance. Water Heater Pilot Assembely Includes Pilot Thermocouple and Tubing LP Propane. Terms of Sale| Bradford White builds advanced technology into products like our AeroTherm Series heat pump water heater and all our electric water heaters to deliver outstanding performance, efficiency and reliability. Sign up to receive email about product launches, events, deals & more! Start by disconnecting thermocouple from gas control. FREE delivery Mar 31 - Apr 5. If there is a reading of 20 to 30 millivolts, then the thermocouple is most likely not defective and you will need to check the gas control valve at this point. This Bradford White water heater utilizes a draft diverter and is atmospherically vented. You may install derated heating elements. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. American Strong. PrivacyPolicy&Security| To reset a Bradford White water heater thermostat well sensor fault message, turn the water heater off and wait five minutes. Contractor's Assistant: How long has this been going on with your Honeywell thermostat? Copyright protected content owner: ReadyToDIY.com and was initially posted on 2022-05-05. Bradford White is an American company with its If the pilot is restricted, try removing it and clearing it with a stiff brush and/or compressed air. Youll get Bradford White quality featuring the HydroJet Total Performance System to reduce costly sediment buildup and Vitraglas tank lining with Microban antimicrobial product protection to give you years of reliable service. Allow water temperature to drop. The first place to look is the reset button! Anything lower than 400 millivolts will require thermopile replacement. Damper not in proper position or malfunctioning - damper moved from full open position during run cycle, Six flashes, three flashes, three second pause (Soft Lockout), Pilot flame extinguished, system auto resets after (5) minutes, Six flashes, four flashes, three second pause, Undesired false pilot flame sensed, system auto resets, Flammable vapor sensor or resettable thermal switch fault detected, see warning label, Eight flashes,one flash, three second pause, Flammable vapor sensor out of specification, possible short. Children, disabled and elderly are at highest risk of being scalded. Choose one of the following methods for fixing your problem, depending on the type of water heater (gas, electric, or even tankless). 4. Only 7 left in stock - order soon. Terms of Sale| 2. It may be necessary to temper incoming water supply. The thermostat is powered by a thermocouple. 1. 2023 So here are the steps to complete this task. ( Hold the gas control knob down in the PILOT position during this test). 1. Check combination thermostat/gas valve for proper operation, replace if necessary. If you're looking for help fixing your Bradford White Water Heater, look no further! The table below shows the possible causes for the thermostat well sensor fault and their main fixes.Possible causeMain FixBad thermocoupleReplace thermocoupleDefective control valveReplace control valveDefective thermopileReplace thermopile. Your Bradford White water heater should be set at a temperature of 120 degrees Fahrenheit. If functioning properly, proceed to Upper Thermostat Test. Use and installation are nearly identical to previous versions ofatmospherically fired and vented water heaters. Once you address and solve these problems, your Bradford Water Heater will heat the water again. Undo, All Filters Removed Or fastest delivery Mar 30 - Apr 4. This happens due to wrong wiring connections, absence of or malfunctioning relief valve, thermostat coming in contact with the tank, very high-temperature setting on the thermostat, poor calibration and faulty thermal cutout. Thermal well sensor out of calibration, Six flashes, one flash, three second pause (Soft Lockout), Failed to light pilot, system resets after (5) minutes, Six flashes, two flashes, three second pause (Soft Lockout), Damper test circuit not working properly during burner operation, system auto resets after (5) minutes, 1. White are manufactured in the United States using the finest raw materials and components from Takagi Water Heater Error Codes [Ultimate Guide], Bradford White Water Heater Troubleshooting [Most Common Problems], 04. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. It operates by delivering signals to the heating element, which either turns on to boost the temperature or turns off to lower it. Eight flashes, three flashes, three second pause, Thermal well sensor damaged or unplugged or gas control electronics fault detected, Eight flashes, four flashes, three second pause, 1. 5. To decrease water temperature, move the temperature dial counterclockwise. Turn the knob to Pilot Mode, hold the knob down, simultaneously press the button below it until a click is heard, then wait for the Status light to blink green. DoNotSellorShareMyPersonalInformation| It fits under a cabinet or in other tight spaces and offers two gallons of instant hot water exactly where and when you need it. Tips: I highly recommend you drain your water heater every month. Get no hot water from your Bradford White Water Heater! If set point knob is in PILOT position then pilot flame is detected. Your Bradford White Gas Water Heater wont heat water for several reasons. Thermocouple not fully engaged in pilot assembly bracket. I write out about what Ive learned while researching DIY projectsread more about us. The consent submitted will only be used for data processing originating from this website. Bradford White Lower Thermostat Sensor for Bradford White D38T155 Commercial Gas Electronic Ignition. Contents Troubleshooting Bradford white thermostat well sensor fault Although some brands do host this feature, with a Bradford White water heater, owners need to follow simple steps to reset the device which should only take a few minutes from start to finish. Final step of the procedure, slide the inner door closed when finished. Well, you will face this gas water heater issue if insufficient gas is feeding to the gas burner. Although it would seem that an installed reset button would be the most logical route to aiding owners when their plumbing fixture needs a reset, Bradford White water heaters do not host this feature, but this does not mean the device cannot be easily reset. Put the Knob of the gas control on the OFF position. However, if you inspect the gas valve and notice that there is corrosion, damage, or obvious issues with the device itself, it may need to be replaced if a reset does not work. a) Be certain that the heating elements are functioning properly. All it requires is a little know-how, no skill necessary. You also might have a short in one or both of the heating elements. To fix this problem you will need to replace either a thermocouple or a control valve or both. Here you can find Electric Thermostats, High Limit Thermostats, and Low Limit Thermostats. To do this, turn off the water heater and wait five minutes. To reset, depress button on resettable thermal switch located on inner door. Set point knob was turned to OFF" position. Every electric appliance starts malfunctioning over time. 5. You want to make sure you turn off gas at shutoff. Six flashes and three second pause Water leak detected by accessory module. Pilot goes out periodically (after heating cycles, once a day, once a week etc.). Bradford White Water Heater Temperature and Pressure Relief Valve. I have a Bradford White gas water heater. Turn the heater to Pilot Mode, hold down the same button, and tandem press the red button beneath until a click can be heard and the Status light blinks green. 2. Part #B2334565101 3. Manage Settings 5. Heat losses can occur all through your piping system. Keep in mind; ensure you turn off electric supply to the unit when flushing the unit. In short, the unit will keep shutting off due to overheating issue. 2. This temperature maximizes the balance between what is needed for most home uses and controlling your energy costs. When a thermocouple is defective, it will have no continuity. Insufficient water heating. The second step,you need a multimeter to test it for continuity. At this step, if you have already gotten a new thermocouple, Install it into the pilot bracket making certain the thermocouple is fully engaged into the pilot Bracket. Check thermostat(s). Their troubleshooting is not a special case. If you get a new thermopile and want to replace the old one, below are the steps to follow; To resume operation follow the instructions located on the lighting instruction label or the lighting, instructions located in the installation and operation manual, See also: Bradford White Water Heater Pilot Wont Light [Fixed]. The thermocouple works by converting heat it generates in to electricity. While its fun and sometimes more cost effective to Do It Yourself. This post may contain affiliate links. Then, I bet lime or scale builds on the heating elements. Ask an Expert Home Improvement Questions Plumbing Questions WCohn, Journeyman Plumber 4,605 Satisfied Customers Journeyman Plumber/Estimator WCohn is online now Continue Related Plumbing Questions These services will not be available during this timeframe. Turn the power back on: Once youve held the reset button for the required time, turn the power back on to the water heater. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. To fix the issue with the ECO, you need to check the ECO. Set point knob has been recently turned to the 'OFF' position. Inconsistent gas supply or gas pressure. All rights reserved. Read reviews. Bradford White builds advanced technology into products like our AeroTherm Series heat pump water heater and all our electric water heaters to deliver outstanding performance, efficiency and reliability. The pilot light of a Bradford White water heater is one of the most essential components to getting hot water and having it whenever is needed as the pilot light must be lit in order to heat a larger heating element within the water heater so that hot water is readily available. Then Disconnect The two thermopile wires ( red and white) from the wire harness leading to the gas control. ADD TO CART. First off, turn off the heater and unplug it from the power connection. The pilot light on your Bradford White Water Heater will not stay lit due to the following reasons: First off, make sure the gas shut-off valve is in the open position. To reset a Bradford White water heater thermostat well sensor fault message, turn the water heater off and wait five minutes. For many different appliances and devices, manufacturers have installed a designed reset button which can be pushed when certain functions are not operating properly or the memory needs to be cleared from a particular item. To see local availability for this item, please. Please enter the email address associated with . Here are some reasons why the reset button may trip. replace thermostat as needed. All rights reserved. Turn the pilot light knob to the hot position for 10 seconds. If it's not there, it's likely somewhere on the lower part of the water heater. Now, use a screwdriver and move the thermostat dial to your desired setting. 1. Combination thermostat/gas valve has wide differential or is out of calibration. If the water temperature inside the tank raises over the safety level like goes over 180 degrees Fahrenheit, the unit will cut-off the power to the unit by tripping the reset or high-limit safety switch. Install temperature limiting valves as a precaution. It just started happening in the last two days. Incorrectly sized water heater for application. Most often older heating elements may burn due to their age. If the gas valve is not opening or closing and you are thus having issues getting the water heated, a reset may be the exact step needed to get things back on track. The reset button on the Honeywell Gas valve on the Bradford White Water heater is the pilot light knob. Electricity powers your home, and now it can heat your water more efficiently than ever before. Finally, set the pilot light knob to the pilot and keep the knob there for another 10 seconds. SKU: 415 . What happened to create the issue is the switch was tripped, and it just needs to be reset. So, ensure you set the gas valve to your desired setting to fix this issue. Check combination thermostat/gas valve for proper operation, replace if necessary. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. Candy Tumble Dryer Keeps Stopping: Troubleshooting Tips, Loc Error Code on Hoover Dryer: Troubleshooting Guide, [Fixed] Rheem Tankless Water Heater Code 12, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? This water heater has a reset button, which is a safety feature. When this is done, you should be able to hear the pilot light ignite, which indicates that the reset has completed successfully. Thirdly, the heating elements should be immersed into water to heat water. When it senses too hot water, it will cut electric supply to the unit. Weak pilot signal detected. The pilot ignites the water heater's gas burner. Referring to our table, you can determine the direction of the forthcoming repair. (It tells me thermostat well/sensor fault), so i manually restart t read more Inspect thermocouple to ensure that it is fully engaged into pilot bracket. Where is the Reset Button on a Bradford White Water Heater, How to Reset Your Bradford White Water Heater. Check ECO. An example of data being processed may be a unique identifier stored in a cookie. UPRIGHT ELECTRIC WATER HEATERS OUTSTANDING PERFORMANCE & CONVENIENCE Our single and double element models come in sizes to fit many household needs. At this step, disconnect thermocouple from gas control. Additional functions allow you to monitor the status of temperature-sensing thermistors and heating components. 5. It should be noted that it may take a few presses when holding down the button below the pilot knob, but once you hear a click, you can then move forward with igniting the heater and using it as normal. Resetable thermal switch, 290 degrees, red. Sitemap It takes the heating elements that much time after the dial is adjusted to heat up the water that is in the tank. To reset a Bradford White water heater, turn the water heater off and allow it to sit for five minutes so all gas can clear. First off, turn the electric supply to your water heater. . If you have any reading above 400 millivolts, then you have a good thermopile. Check heating elements). Seel also: How to reset Dometic thermostat, Another problem that can cause the Bradford white thermostat well sensor is a bad thermopile. If this is the problem, check the gas tank first to see there is enough gas. Light the pilot as you would normally do and allow it to operate for three minutes. The contractor or specifying engineer is responsible for ensuring the product meets local and state codes, standards, and regulations. 2. Then, there are a lot of things to blame that prevent your water heater from heating water. To solve this problem, you need to replace the thermostat. Lastly, replace the piezo igniter button if it gets defective. The Bradford White Water Heater is different in this regard. What setting should my Bradford White Water Heater be on, Bradford White Hot Water Heater Control Settings, How to Turn Up Bradford White Water Heater, Does a Bradford White Water Heater Thermostat Have a Battery, Bradford White Water Heater Flammable Vapor Sensor Reset, A.O Smith Water Heater Reset Button (Ultimate Guide), Is There a Kenmore Dryer Reset Button? CAUTION:Hotter water increases the risk of scald injury. Terms of Sale| Privacy Settings. These services will not be available during this timeframe. A Bradford White water heater is designed to supply hot water to users with the simple turn of a faucet, making having access to heated water easy and nearly thoughtless. The status light should stop blinking. Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches, Bradford White OEM Flammable Vapor Sensor 239-45560-00 Water Heater Replacement Part 2394556000, Fixitshop Water Heater Pilot Assembely Includes Pilot Thermocouple and Tubing Natural 24" tubing Gas US Merchant Ships and guaranteed from the USA, Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each Upper Thermostat, Bradford White Anode Rod / Alum / w/nipple / 30 / .750 / 2 nipple, Resideo WT8840B1000 Water Heater Gas Control Valve, NAT 160 Degree F 1" Cavity, Reliance Water Heater LIQUID PROPANE Gas Control Valve 100112338 9007890005 100093977 6911135 Thermostat Compatible with A.O. Poor thermocouple connection at combination thermostat/gas valve. This is a complete guide on Bradford White Water Heater Troubleshooting. Sign up to receive email about product launches, events, deals & more! This temperature maximizes the balance between what is needed for most home uses and controlling your energy costs. Check for pilot flame through sight glass and light if necessary. The meter reading should be the input voltage of the heater (see rating plate of the water heater). 1. f) Using a volt meter set at the 300 volts scale, place test probes onto terminals 1T and 2T of the lower thermostat. Pilot will light but the main burner will not come on. No. Sitemap. Refer to your local plumbing inspector or manufacturer for more details. But you may still want to test it before replacing it. If you see a message that is indicating a well sensor fault in your water heater, how can it be reset? So when faced with an issue in the middle of a shower or load of laundry without hot water, it can be quite the challenge trying to figure out how to reset the water heater to resume flow of hot water. Check the pilot tube or orifice for clog. And without sufficient electric power, you cant turn the unit on- let alone getting hot water. Overheating or overheated water streaming is another common problem. 2. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. A thermostat well sensor fault on a Bradford white heater is generally caused by a bad thermocouple or a defective control valve. The meter reading should be the same as the input voltage of the heater. No problem. Out of spec dip tube is diluting hot water with cold water. To resume operation follow the instructions located on the lighting instruction label or the lighting instructions located in the installation and. Gas Control is not powered. Turn on gas supply and/or check line pressure. Related resources:How to Light a Hot Water HeaterHow to Turn Off a Water HeaterTips to Drain a Water HeaterTurning on a Water HeaterHow to Turn Up Water HeaterWhat Temperature Should Water Heater Be. This section contains Flame Sensors and other types of Temperature Sensors for Bradford White Water Heaters. Leave the unit for 10 seconds and plug it back again. Reinstall, or slide closed, inner combustion chamber door. 3. You might have a faulty thermostat. See also: How to Fix Bradford White Thermostat Well Sensor Fault. Pilot Will Not stay lit when button is released. To access the reset button, you need to remove the access panel. Though the pilot light is on, the main burner wont come on. The reset button might be tripped by loose wires. However, if there is an issue with the water getting too hot, resetting the sensor will not resolve the problem and further inspection of the sensor should be made. If you know that the water temperature is correct, then resetting the sensor is the right option. manufacturing facilities located in the United States of America. The Bradford White Water Heater has the following Temperature Settings. You may find burnt pieces, or when you delicately pull on a wire, it may entirely detach from the component to which it is attached. Nonetheless, an inoperative ECO can also cause your water heater to overheat the water. Bradford Whites Powerful Compact Electric Model may be the perfect solution. For your reference, you'll want #107, 118, 119, 120 & 125. 2. Generally, all heating elements get burnt out like a light bulb. Just take a multimeter and test the heating elements for proper voltage & wattage output. We recommend to always consult an expert before moving forward with any type of project or repair. Does the water heater produce a hissing sound? Secondly, check the thermostat and see if you set it to a higher setting. If needed, replace them. Carbon deposits can block the pilot, causing the gas burner to not light up. Save my name, email, and website in this browser for the next time I comment. This post was published on 2022-05-05. Secondly, relight the pilot again if you fail to depress the pilot light button fully. Bradford White Water Heater Status Light Blinking. Otherwise if the readings are out of the acceptable range, you probably have a bad thermocouple and you have to replace it. To better serve you, our valued customers, we are performing a system maintenance that will temporarily interrupt our phone and voicemail systems on Tuesday, August 10, from approximately 8:00 PM-10:00 PM ET. In this case, you can check out the following tutorial to learn how to replace the thermostat: For a high demand period, I recommend you reduce the demand and prevent yourself from running multiple hot water faucets or other appliances at once. You will then turn the knob to the vacation setting. 4. Then, reset or replace the thermostat to bring the Bradford White water heater back into operational state. Each manufacturer is going to have different instructions, so we recommend that you dust off your owner's manual to address this problem. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. 2023 If they get reversed, correct the connections. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. Bradford White Water Heater Thermoprotector. 2.Extremely cold water going into the heater will decrease the amount of hot water produced. Is There a Lochinvar Water Heater Reset Button? How to use and set up clock in Samsung microwave, Stand-by mode, Thermostat is satisfied (no faults), Temperature demand is satisfied (no call for heat), Tank temperature below setpoint of thermostat, 1.
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