If you have a Rheem tankless electric hot water reading and E5 code, please contact the help desk.
A good digital display or wireless monitoring app can be used to identify issues with your water heating system as soon as they appear.You may find the error codes confusing, but they are easy to learn.Some of the most common error codes are listed below.
It doesn't have to be difficult to fix a hertz tankless water heater.Some errors can be fixed by yourself and some should be left to a qualified service technician.
Make sure to use the technical support number whenever you are unsure of what to do, and use your Rheem heater manual as a reference when performing any repairs.
To reset the unit, turn off all the hot water taps.The circulation system may need to be turned off or replaced.
The heat exchange fins, combustion air fan, and air inlet filter need to be cleaned.If there are obstructions or dirt in the vent openings, it's a good idea to clean them.
Check to make sure the vent and heat exchange components are clean.Make sure the flue inlet and exhaust are free of obstructions.The proper vent materials should be used.
Check to make sure the heater is grounded and that the gas line, meter, and regulator are all sized.The igniter wiring harness should be checked for signs of damage.Did not blow any air from the gas lines.Make sure the gas type and pressure are correct.Check the igniter to make sure it works.
If the device is receiving gas of the right type and pressure, it is time to fix it.The remote control, PC board, and all wiring harnesses need to be disconnected.
Ensure the condensation collar and proper vent material was installed and that the gas line, meter, and regulator are all properly sized.The power supply should have proper voltage, no voltage drops and tight connections, and the maximum horizontal and vertical vent lengths should not exceed allowable limits.Check the gas lines for short circuits and bleed any air from them.
Check to make sure the proper gas type is being used and the high fire and low fire manifolds are correct.The heat exchanger should be inspected for cracks or other openings, as well as air flow restrictions around the vent terminal and unit.There could be a foreign object in the exhaust pipework.The safety circuit needs to be Ohmed out.
The cold water inlet pipe should be open.Check to make sure there is no scale blocking the heat exchanger.
The easiest way to fix is to check the combustion chamber, exhaust pipes, heat exchanger, and vent terminal.
Check to make sure the front panel has been installed correctly and the air filter door is seated correctly.
The max and min buttons can be pressed to reset the switch.You will need to replace the PCB if this doesn't work.
Clean off any scale and check the sensor wiring for damage.If necessary, replace the sensor.
Check the sensor for signs of wire damage and clean it off.If necessary, replace the sensor.
Clean the scale and check it for damage.Make sure the air flow is unrestricted.The fan blade is attached to the motor shaft.If necessary, replace the sensor.
The easiest way to fix the valve is to check the wiring harness for loose or damaged terminals.
Make sure there is no damage to the wiring harness or motor and the connections are tight.The fan motor needs to turn.You may want to remove the winding from the motor.
To fix it, check the gas inlet solenoid valve wiring harness to make sure there are no damaged or loose terminals.
There is an issue with the flame rod.Ensure the wiring is undamaged.Remove the flame rod and clean it off.There are no foreign materials getting in the way of the fire if the rod is replaced.
Make sure there are no damaged or loose connections.You can connect the remote control to the PCB until you can replace the faulty cable.You may need to replace the PCB in an extreme case.
Make sure the fan motor is turning freely and that it is receiving the correct amount of power.You may need to replace the fan motor in a worst case scenario.
If you want to fix it, check the voltage of the flame rod and the valves.If necessary, replace the gas control valve.
Clean up any obstructions in the combustion fan, exhaust flue, heat exchanger, and inlet filter.
There are several possible causes for this issue.The proper amount of voltage to the unit should be supplied by the fuses.Look for pipe dope inside the water flow control turbine if you clean the inlet water supply filter.The minimum flow rate of gas should be set by the fire unit.
Freshly installed units are a potential cause.Accidentally crossing the hot and cold water lines can cause this fault.An error can be created by bleed over in current installations.Shut off the cold water supply valve and open the hot water tap to test for bleed.A sign of bleed over is steady flow.The bleed issue needs to be fixed by a professional.
There is a good video that applies to most tankless models.
When the thermostat is adjusted, the display will show the desired temperature, but when power is applied, it will display 5130.The water is not getting heated, my name is joe jones and my phone number is removed.The 800 number was closed after we contacted them for trouble shooting assistance.I would appreciate it if you would contact me as soon as possible to assist in getting this water heater up and running.
Hi Joe.You can either call 800-432-8373 or use their contact form.We are not associated with the manufacturer.
How to fix a P1 error.Was it the Rheem Pronto water heater?Do you want to replace the PRV?If you can't find the PRV in your home, what are you going to do?
There isn't enough water flow to turn on the unit.The minimum flow rate is achieved before the water heater starts heating water.The aerators inside should be removed if the problem is caused by a low-flow showerhead.It is possible to turn down the temperature on the unit or clean out the inlet water filter.
There are backfire or small boom sounds coming from the exhaust vent.What might cause this?
The water won't heat up in the summer.It works once the temperature drops.The attic is where the unit is located and it gets 130+ up there during the day.
I own a tankless water heater as well.It is a poison.I received the same error code.It's difficult to find any information on this.It is a holiday weekend and no one at Rheem can answer the phone.Did you know what it was?I think it's a flow error.It doesn't alarm if a sink is turned on or the shower is on.If the Tub is on, it only makes errors.
Any chance you can figure out this code?We have the same error and can't find anything online.
The retex-18 seems to be working well.I get a +50 degree water temp rise when the unit is on.The chart on the box was what I expected.Where is the error code list and what do I need to do to correct these errors?
If the E5 error code is displayed on the control board, you will need to slow down the flow rate if you want to reach your preset temperature.
What is the meaning of a code C4 on a model?The water was turned off, the circuit breaker was checked, and the unit sat for 10 minutes.If there is something we need to have looked at, what does the code mean?
Was there a number after C4?This would indicate an issue with not enough air coming in.You should call for service on this one.
The air intake is needed for the combustion process to take place.Oxygen won't get to the burner for proper combustion if the intake gets dirty, has a block, or is too close to something.Make sure you check your owner's manual to see where the intake is and make sure there is no partial obstruction.
7 years ago, I had a Rheem tankless RTG95DV installed.The water runs cold after the tankless starts.The remote display is blank.There were no lights or messages.What are you suggesting to fix the problem?
You don't show code 25 when I tried to find it.We ran our tank dry because my gas company did not refill it.They filled it the next day, but the hot water heater doesn't always work.I have a full tank and the hot water shuts down and shows code 25.
I got E 103 for the display after installing a Rheem 18kw tankless.I have two 125vac circuits feeding it and have verified the voltage at the unit across both circuits.The error -low voltage- has not changed after Ecosmart sent me the 2nd replacement control circuit board.After installing the 3rd control CB, I was ready to return the unit.
The remote control is dead, checked to see if the Rheem Eco180XN3 has power, if it does, when the water comes out warm.
I know the exhaust is not blocked because I have read my manual.I installed it 3 years ago because we have city water.Where do I go from here?I don't know if I should drain it or try to clean it.