One of the worst problems is when you find that you don’t have sufficient hot water because your Rheem Water Heater is not working properly. Luckily, careful troubleshooting can lead you quickly to the cause of this problem so that you can rapidly fix it.
If you want to know how to fix your Rheem Water Heater heating problem, first, check the thermocouple. Be sure that your Rheem Water Heater thermostat is not set higher than one hundred twenty degrees Fahrenheit. Also, be sure to keep the entire unit clean and free of any mineral debris buildup.
Rheem Water Heater not Heating
Sometimes, if your Rheem Water Heater is not heating normally, it is caused by a relatively minor problem rather than from a major condition that will cause the entire water heater unit to be replaced.
If you want to know how to fix your Rheem Water Heater, not heating, check to see if the circuit breaker is in an on position. If it is in a position that is midway between On and Off, first to an OFF position and then to ON.
Rheem Water Heater not Enough Hot Water
If your Rheem Water Heater does not have enough water, it is usually a result of a buildup of sediment inside the tank. This buildup of sediment then causes a decrease in the amount of hot water that can be produced by your water heater. If this is occurring, you may hear a rumbling or noisy sound emanating from the water heater.
If you want to know how to fix your Rheem Water Heater not having enough water, check to see if the gas control valve is broken. Also, see if one of the electric elements or thermostats has become defective or has burned out.
In addition, you can check the dip tube that is inside the water heater that is defective and is causing a lack of water flow through the water heater pipes.
Rheem Electric Water Heater not Heating
If your Rheem Electric Water Heater is not heating, it is usually caused by one of several common problems. These include a electrical supply issue, a temperature limiting supply issue or the thermostat being set too low.
If you want to know how to fix your Rheem Water Heater, not heating, first, check to see that your electrical system is fully functioning. Then, try to reset the Temperature Limiting Control manually. Also, be sure that no fuses have blown and that the circuit breaker has not been tripped.
Rheem Gas Water Heater not Heating
Rheem Gas Water Heaters have been known to suddenly stop heating. If this is the case, careful troubleshooting can often discover the cause of the problem. Read on to learn what to do if your Rheem Gas Water Heater is not heating.
If you want to know how to fix your Rheem Gas Water Heater, not heating, check the thermocouple to make sure it is not failing or faulty. Also, carefully check for any air bubbles that may have entered the gas line. Finally, check for a faulty gas valve.
Rheem Water Heater not Keeping Water Hot
If your Rheem Water Heater is not keeping your water hot, it is possible that a limit switch may have been tripped or that one of the heating elements has failed.
If you want to know how to fix your Rheem Water Heater not keeping your water hot, check the circuit breaker of the water heater to see if it has been tripped. It is in the Service Panel. If it has tripped, go ahead, and switch it to Off.
Then, make sure to switch it back ON.
Rheem Water Heater not Getting Gas
If your Rheem Water Heater is not getting gas, it could be from a malfunctioning gas valve.
If you want to know how to fix your Rheem Water Heater not getting gas, go ahead and open the gas line. You can do this by turning the handle so that it is parallel to the gas pipe. Then, be sure to turn the Gas Control Knob to the Pilot Position.
Be sure to push the Gas Control Knob in. At this point, you might be able to hear a slight hissing sound.
Rheem Water heater not Lighting
If your Rheem Water Heater is not lighting, it could very well be due to a blocked gas line.
If you want to know how to fix a Rheem Water Heater not lighting, first, turn off the gas. Then, use a small wrench to disconnect the pilot supply tube. Now, be sure to clean it out using compressed air. If this does not solve the problem, you may need to repair or replace the entire gas valve.
You can also try to light the pilot and if you see that the pilot light is starting but is then going out, you can check for any drafts in the room that could be blowing the pilot light out.
If you do not find any drafts, go ahead, and check the vent. The vent should extend out approximately eighteen to twenty-four inches above the roof line.
Check to see if it has any obstructions. In addition, if the vent is too short in length, any breeze, even a very light one, will be able to blow out the pilot.
Rheem Water Heater Igniter Won’t Start
If your Rheem Water Heater Igniter won’t start, the burner will not be able to light either.
If you want to know how to fix your Rheem Water Heater Igniter, check to make sure that there is sufficient voltage that is getting to the Igniter. If the Igniter is indeed receiving the appropriate voltage, check to see if it is glowing.
If it is not glowing, this means that the igniter is either faulty or is malfunctioning and that it will need to be replaced.
Replacing the igniter may require consulting a Factory Certified Rheem Water Heater Technician.
ReadyToDIY is the owner of this article. This post was published on April 3, 2022.