Do not use gas control knob to regulate gas flow to burner. With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. Check the gas supply pressure and manifold pressure. Digital thermostat with self diagnostic program, Two High altitude options: up to 6,560 or 9,840 ft. elevations, Corporate Office: 1100 Abernathy Road, Suite 1700. We call it Peak Hour Demand. Measure the readings given by the multimeter. Dirty Air Filter 4. Strategically position risers in the water pipe system or use water hammer arresting devices to minimize the banging noise that can occur as result of rapidly closing faucets or solenoid valves in automatic water-using appliances. There are several reasons behind the failure of the tankless water heater. Set the thermostat to the desired temperature. This indicates there is a problem with the internal circuit. It means that the heater is calling for heat and its trying to achieve the desired temperature. . Choosing a water heater is based on your family size and how much hot water you will use in one continuous hour. Eccotemp 45H/HI LP/NG Whole Home Tankless Water Heater Manual *English; How to Replace the Flame Sensor on the 45 Series; How To Replace the Over Temperature Sensor on the 45 Series; Gas Piping Facts: Information for properly sizing gas lines for use with tankless water heaters; Gas Pipe Sizing and how it affects the functionality of your 45 . All you have to do is to replace the thermostat and the blinking codes will go away. Thus, Rheem electric tankless water heater E5 code appears. Another possible reason is the blower is unplugged. Save my name, email, and website in this browser for the next time I comment. Visually inspect the pilot burner and main burners annually. As youve seen, there are many potential reasons behind this error code and therefore, many possible fixes. Click here to browse our high efficiency tankless water heaters! Clean it up with a thin wire brush. It indicates water temperature sensor failure, It indicates Combination Gas Control failure. It means that the heater has achieved the desired temperature and theres no longer any call for heat. Your heater has a piece of equipment called a gas pressure regulator. Error code 12 means your tankless water heater fails to detect the flame. GET THE RIGHT FIT FOR YOUR . Inspect the thermocouple to determine if it is dirty or damaged in some way. If doing it doesnt solve the problem or the electrode wasnt dirty in the first place, inspect the pilot tube for dirt. Hey all, just installed a new tankless water heater and am getting the high flow code of E5 at higher temperature settings and faucet count. Check the ventilation system and vent openings for blockages or dirt and clean as needed. Otherwise, the lower thermistor itself has gone bad. You can check it with a multimeter and replace it if it has gone bad. It also shows the temperature when the E-5 is not showing. Check the outdoor combustion air-inlet and vent terminals to make sure that there are no obstructions, and that there is no damage nearby caused by condensate. The last potential culprit behind the issue if unclogging the jacket holes dont work is the pilot assembly. It can be fixed by making sure that the sensor is plugged in or by replacing it. The Richmond Hybrid has a 10-year tank leak warranty and a 10-year parts warranty. This results in a lack of combustible air and results in incomplete combustion. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . If set too low, adjust the water temperature setting to the desired setting. Rheem Tankless water heater code E5 is a diagnostic alarm from the control panel. The air intake tube of your heater can be blocked with debris, spider web, dirt, etc. Communication error or issues with Wi-Fi connectivity. On the temperature display screen it shows E- 5. If youre sure that the power source is within the required amount and the same issue persists, try to reset your heater by: Completely draining the unit out of water. The next thing to check is whether the Wi-Fi is connected. Richmond urged the ANSI standards be reviewed. Allows plumbers to view detailed alerts and alarm codes while at the water heater to expedite service 5. Use a soapy water solution to test for leaks at all connections and fittings. This helps to protect homes. Commercial Electric Water Heaters; Tankless. If there are error codes, troubleshoot to clear the error and fix the issue. What is the application of a cascade control system? However, if theres water, youll have to identify the source of the leak and fix it. It may be set too low. The thermopile is disconnected-Make sure the thermopile wire connectors at the gas Combination Gas Control (Thermostat) are connected properly. It shuts off the heater when the temperature reaches a certain extent. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Drain a few quarts of water from the water heaters tank every month to clean the tank of deposits. To resolve the issue, follow these troubleshooting instructions: This indicates that there is a problem in the combination gad valve driver circuit. From https://www.justanswer.com/ythiJustAnswer Customer from Dunnellon, Florida: we have a rheem electric tankless water heater with E5 code and are not gett. Dont use force. All Rights Reserved Here's how to do it: Turn off the hot water tap Turn off the device itself Wait for about 20 minutes Turn the device back on This should allow the device to fully reset itself, and you might find the error code has "magically" disappeared. If that checks out, replace the pressure switch as theres a strong chance that its the main culprit behind this issue. Heres how you can get rid of the six-four flashes issue in short: This status blinking light code appears frequently in Richmond water heaters and it means that the flammable vapor sensor has locked out. 11% Mail-In Rebate Good Through 4/23/23. Start by replacing the sensor and the wiring. Test results have shown that a tankless gas water heater costs about 40% less to operate than an electric water heater, and about 30% less than a natural gas water heater. 0 light flashes, no color- Control Off/Pilot Out, 5 red flashes- Temperature sensor failure, 7 red flashes- Gas control or valve failure, Check thermopile connector to the Combination Gas Control to make sure that it is properly connected, Check thermopile wires for damage and replace if needed, Pilot recently extinguished and Thermopile is cooling down, Temperature knob recently turned to OFF position, Light the pilot following the proper lighting instructions, Temperature knob recently in pilot position and pilot is lit, Set temperature knob on Combination Gas Control to desired setting. Once you have that cap off youll notice that theres a plastic adjustment inside that increases or decreases the pressure going to that equipment. How old is it? In 2017, the Department of Energy required manufacturers to calculate the UEF based on how efficiently each water heater uses energy in real-world usage scenarios. Ignition failure doesnt detect flame signal, Abnormal combustion after detection of flame signal, system lose the signal. This helps conserve energy and prevent a build-up of dangerous hydrogen gas. The high resistance caused by a loose wire produces a substantial amount of heat that can eventually cause fires. I know that is perfectly normal behavior if you're demanding too much hot water. You need to be quick with this step and get it done in 30 seconds. Set the thermostat dial to the lowest setting by turning the thermostat dial clockwise until it stops. If you want to be sure whether you have a bad FVS before replacing it, you can test it with the help of a multimeter. how to fix the RV Water heater igniter not clickingproblem, Pilot Light Lit But Burners Wont Ignite [13 Easy Fixes], Sta Rite Pool Heater Turns On By Itself [5 Easy Fixes], Truma Water Heater Reset Button [How To Reset], Navien Tankless Water Heater Standby Mode [Explained], Richmond Tankless Water Heater Code 29 [Reasons + Solutions], Richmond Tankless Water Heater Code 13 [Reasons + Solutions], Richmond Tankless Water Heater Code 11 [Why+ How To Fix]. Low- Represents an approximate water temperature of 91, Hot- Represents an approximate water temperature of 125, A- Represents an approximate water temperature of 130, B- Represents an approximate water temperature of 140, C- Represents an approximate water temperature of 150, Very Hot- Represents an approximate water temperature of 155. Did you know that your water heater, operating for many years in the basement of your house, could be dangerous, even if it was professionally installed My possible solution is to branch off the hot water out and recirculate it back into the cold water supply. The most common causes of failure of tankless water heaters are blocked exhaust or air supply, flame failure, ignition problems, and much more. It could be that the room your water heater is placed in has no air circulation. Shut off the water heater if you notice any unusual burner operation, until you obtain qualified service assistance. Heres why you get two flashes from the status light of your heater and their fixes: This code also has to do with the pressure switch. Clogged Exhaust 6. Have a qualified service personnel conduct periodic inspection of the Combination Gas Control (Thermostat), relief valve, internal flue-way, burner, and vent and combustion air-inlet systems. To adjust the temperature, turn the temperature dial to an initial setting of 120oF. The good thing about these heaters is that they wont work before filling the tank with water. The temperature of the water in the heater can be regulated by pressing the COOLER or HOTTER arrow buttons on the front of the combination gas control. Depress the COOLER button until only the WARM indicator light is lit. Contractor's Assistant: Is your Rheem water heater gas or electric? If thats not it, keep in mind that a faulty blower and a temperature switch thats stuck open can also cause this status light blinking code. Close the valve on the cold-water pipe feeding the water heater. Reset the heater and hopefully, thatll get your heater to work again. Combustion shutoff device tripped- Combustion shutoff device(s) should be inspected by a qualified service technician. If that wasnt causing the issue, check the air intake. Immediately depress the piezo-electric spark generator button several times until the pilot is lit. The E5 code on your Fogatti RV Tankless Water Heater - Gas - Automatic Pilot - 41,800 Btu - White Item # LSB64FR means you're having a fan failure/no fan signal detected during start-up or water heater operation. Gas Water Heaters Encore XR90 Induced Draft A 29-Gallon tank with a compact design that outperforms standard 40-gallon tanks* View Product Encore Powered Damper Provides up to 10% more hot water than standard Essentia (register) models* View Product Power Vent Uses indoor air for combustion with flexible venting options up to 100 feet. Pay close attention to the status light to figure out whats wrong. View Rebate Amount in Cart. Our Xtreme models will provide up to 756 gallons of hot water in an hour; and recover the tank contents in as little as 8 minutes! RMTEX-18. If incomplete combustion is detected, the water heater corrects the problem to provide clean, efficient water heater operation at all times. Lack of Ventilation In The Room 7. Is the Richmond hybrid water heater EnergyStar compliant? Definitions of Rheem tankless water heater error codes Rheem fault code 00 - Indicates 1-hour continuous combustion. Our Smart Choice products save money and energy with high efficiency innovations. The E5 code appearing on your heaters display due to one or more reasons like too much water flow, incorrect gas pressure, blocked air intake, clogged exhaust, dirty air filter, lack of airflow in the room, and corroded heat exchanger. Relocate any hard objects that could be impeding the pipe and causing debris to build up inside. If you smell gas, stop and dont try to light any appliance, touch any electric switch, or use any phone in your building. Gas control problem-Contact a qualified service technician to inspect and fix the issue. Tankless water heaters can provide a continuous supply of hot water, while a tank will run out of hot water. The new generation Tankless Technology Water Heater from Richmond only heats water on demand. Insufficient gas supply, unstable pilot, carbon buildup on electrode or wire/pilot tube damage are the probable reason behind this error code appearing on your screen. Check to make sure it is plugged in. The required minimum gas pressure may be different for different models. Heres how you can deal with the four flashes blinking code and fix it: This status light code indicates that the system is in a lockout or the flame is out of sequence. Rheem Manufacturing Company If you do not smell gas, proceed to turn on all electrical power to the appliance. Watching the video will be helpful for you in the cleaning process. The burner chamber is a sealed area and it is recommended that cleaning of the burner is done by a qualified service personnel. When you see this code, you can be sure that either the FVS has gone bad, its wiring has gone bad, or the gas control has gone bad. This means that the flow meter is not sending a signal to the computer which starts the machine. They, Culligan water filtration systems have improved water quality for thousands of households worldwide. At least once a year, lift and release the lever handle on the temperature pressure relief valve to make sure the valve operates freely. (Residential gas is approximately 0.62; and residential electric is approximately 0.92). This helps conserve energy and prevent a build-up of dangerous hydrogen gas. Continue holding down the gas control knob for about 1 minute after the pilot is lit. I was hoping some of you could confirm if my thinking I'd correct and maybe shed some light on why it may not be the best idea? If its outside this range, you can be sure that it has gone bad. In case you have more queries about your Rheem heater, you can leave us a comment below. Combination Gas Control (Thermostat) Knob is not depressed while attempting to light pilot- Make sure you depress the knob as is required when lighting the water heater. Drain the water all the way if youre planning to replace the lower heating element. If that is the case, you need to wait for the water heater to recover after an abnormal demand. Chlorinate the water supply as a way to minimize the smell of hydrogen sulfide or rotten eggs which happens as a result of the cathodic protection process with water containing a high sulfate. This is an exclusive feature of the Richmond tankless water heaters. Thus, Rheem electric tankless water heater error code E5 will appear on the screen. You need to make sure that all faucets are closed. The LED status indicates the pressure switch remained opened longer than 5 seconds after the combustion blower was energized. Heres how you can deal with the eight-three flashes in short: This blinking light code represents a problem with the gas valve. While the previous code indicated that the pressure switch was stuck closed, the three flashes code represents that its stuck open. Locate the red reset button and then, press it. Heres a quick look at solving issues related to six-one flashes: This error code indicates that the Recycle limit is reached with the pressure switch opened. This feature improves the energy efficiency of the water heater. Inspect the vent termination as well and make sure that its following the regulations and that theres no moisture on them. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. RichmondTank Features Low first cost Low venting cost No electricity required Large variety of sizes available Flow rates of 12gpm and up High altitude installations to 10,000 ft Low NOx emissions - some models Click here to browse our residential tanks! Remove the upper element protective cover at the top and the insulation. Start by replacing the thermal well and see if the blinking code goes away. Read more about how to clean scales from heat exchangers. A water heater that produces no hot water may not be getting power, may have a tripped limit switch, or may have one or more failed heating elements. The exhaust of your heater lets out heat and carbon dioxide from the flame. If the pilot wiring is damaged, youll have to replace the pilot assembly. The flow sensor measures the amount of water entering your system and communicates the data to the control board of your unit. We have a Richmond on demand hot water heater. Periodically, lift and release the lever handle on the temperature pressure relief valve, located near the top of the water heater, to make sure the valve operates freely. However, your heater may also be big enough to take that load as well. Hold down both COOLER and HOTTER temperature adjustment buttons at the same time for one second to Wake up the temperature indicators. Once you successfully rule that out, chances are that it was a faulty reading. Remove the air filter and clean it with a rag to get all the loose dirt out. I have a richmond encore tankless water heater model RMTGH95DVN. Keep going at it till the wire brush comes out clean. The causes of the E5 code appearing on your heaters display include too much water flow, incorrect gas pressure, blocked air intake, clogged exhaust, dirty air filter, lack of airflow in the room, and corroded heat exchanger. FV sensor detected presence of flammable vapors. Luckily, you can easily reset it by pressing the red button. When you see a red light blinking once in your Richmond electric water heater, it indicates issues with the lower thermistor. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. FVIR stands for Flammable Vapor Ignition Resistant. Richmond products have been engineered to keep pace with consumer demands for larger, fast-recovery water heaters. The Richmond Hybrid is also EnergyStar Compliant and may qualify you for a local or utility rebate. Check if that solves the problem. What is a sensing burner on a Richmond tankless water heater? This water heater uses heat pump technology to achieve a 3.55 uniform energy factor. However, this issue can also be the result of the ECO getting tripped. Remove the outer door from the water heater. Running every faucet at once may overwhelm your heater and fail to heat. If you're sure that the power source is within the required amount and the same issue persists, try to reset your heater by: Completely draining the unit out of water Shut off gas valve This is why the E5 code on the electric tankless water heater is seen. Go two turns and check to see if the flame is strong enough. Blocked Air Intake 5. If that solves the issue, youre good to go. Use a match or candle flame or smoke. But if the wiring is okay, then you need to replace the thermal well. Plumbing. Richmond tankless gas water heaters are more energy efficient than conventional water heaters, because the tankless models eliminate the need for reheating stored water. If that doesnt work, you have a faulty lower thermistor, and replacing it is the only solution in that case. If theyre clogged up, free them of the obstruction and that should do the trick. Locate the piezo-electric spark generator which is located on top of the combination gas control. Use a garden hose to rinse the filter down and scrub it with a brush. Issues with the shutoff valve like its failing to open or close as needed. One of the heating elements may have to be replaced if theyve gone bad. If you continue to use this site we will assume that you are happy with it. Make sure the flammable vapor sensor is not blocked or obstructed. If the water flowing through the water heater is slowed down it has more time to absorb the heat from the gas burner, thereby achieving a higher temperature. Tankless Electric Water Heaters Richmond Essential Series NEVER RUN OUT OF HOT WATER AGAIN Instant Hot Water / Point of Use & Whole Home Options / Easy Installation / Heats Water Only When You Need It for Maximum Savings Point-of-Use Tankless 3.5kW and 6kW Models Push-button ON/OFF control with LED temperature display Do not expose the flammable vapor sensor to water, solvents or cleaning agents. Set the thermostat dial to desired setting by turning dial counter-clockwise. The pilot burner tube might be pinched or clogged, thus preventing the pilot burner from lighting. Pilot burner orifice is clogged- You need to clean or replace the pilot burner. The RTG-64X, RTG-84X, and RTG-95X outdoor models are for outdoor installations only, and are a great alternative if your climate is appropriate. I have a new Rheem RTEX-24 on the 2nd floor replacing a typical tank-style heater installed by licenced plumbers I have used before with no issue. If the LED control board of your EcoSmart tankless water heater is displaying an E5 error code, it means that the desired water volume is too high. Open a hot water faucet or lift the handle on the relief valve to admit air to the tank. Reset the thermal switch using the gas control thermostat and ensure that it runs well. Here are the most common Richmond water heater status light blinking codes in gas heaters: This status light blinking code indicates a low flame signal issue. To clean your heat exchanger, we recommend a hydrochloric acid-based solvent, like Scalzo. Moreover, you need to ensure that water pressure of 14 psi (97 kPa) to 40 psi (276 kPa) is maintained. Besides that, a damaged gas supply or faulty pilot wiring can also cause this issue. The pilot burner should be cleaned or replaced in this case. Richmond water heater blinking light codes are 1,2,3,4,5,6,7,8.