Pressure switches- Make sure the pressure switches are not kinked. To resolve the issue, follow these troubleshooting instructions: This indicates that there is a problem in the combination gad valve driver circuit. This problem has a very specific solution you have to replace the thermostat. Found this from Google. Chlorinate the water supply 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. Once a year is good enough. Replace it and this eighty-one flash blinking code will disappear. Richmond Power Vent Water Heater Error Codes [7 Easy Fixes] - FireplaceHubs E5 is an error due to the high flow rate. The main ones are poor installation, improper ventilation, blockage of the pressure switch tube, and incorrect blower operation. If necessary, turn in more. Drain a few quarts of water from the water heaters tank every month to clean the tank of deposits. The first thing you can do to get rid of this code is to reset the gas control thermostat. Since the thermal well is at fault here, start by checking the wiring. Rheem Tankless Water Heater Code E5 [Reasons + Solutions] - FireplaceHubs At 40 psi water flow will be maximum. If the appliance will not operate, turn off gas to the appliance and call your service technician or gas supplier. Richmond Water Heater Owners Manual Another thing that can cause this problem is when the pilot burner orifice is clogged. Electric Water Heaters. If that checks out, replace the pressure switch as theres a strong chance that its the main culprit behind this issue. Gas supply is off or too low to operate. Put the insulation and cover back in their places. Privacy Policy. Make sure that there are no gas leaks and that the gas is being supplied at the right pressure. One or two of the temperature indicators will light up, and will only remain on for 30 seconds if no further buttons are pressed before the control goes back to sleep mode. In this guide, youll learn about the common blinking codes for both gas and electric heaters. Tankless electric water heater E5 error code. With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. You will find yours on the water heater rating plate. To remove/clean the deposits, drain a few quarts of water from the water heaters tank every month. Verify power supply (120 VAC). Allow several gallons to flush through the discharge line to an open drain. Rheem Tankless Water Heater Code E5 [7 Easy Fixes] Replace the combination gas control (thermostat). If incomplete combustion is detected, the water heater corrects the problem to provide clean, efficient water heater operation at all times. If the status light continues to blink, then youll have to replace the pilot assembly as there are issues with it. It also shows the temperature when the E-5 is not showing. Choosing a water heater is based on your family size and how much hot water you will use in one continuous hour. As long as enough combustion air is provided, Richmond tankless water heaters can be installed in a utility room, garage, basement or attic, or on an outside wall . To adjust the temperature, turn the temperature dial to an initial setting of 120oF. The first one is when you see the status light do a short flash every four seconds. If its outside this range, you can be sure that it has gone bad. Otherwise, the heating element may go bad one more time. Ignition failure doesnt detect flame signal, Abnormal combustion after detection of flame signal, system lose the signal. The reference marks represent the water temperature as stated below: To determine the water temperature, turn on a hot water faucet and place a thermometer in the water stream. What does E4 mean on a tankless water heater? The heater gets overheated and carbon dioxide snuffs the burner flame causing incomplete combustion. Moreover, you need to ensure that water pressure of 14 psi (97 kPa) to 40 psi (276 kPa) is maintained. We also have a standing pilot Direct Vent that will vent up to 4 feet from the outside wall. This helps to protect homes. We call it Peak Hour Demand. 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.