If you have a Rinnai tankless water heater, kudos to you, you have made one of the wisest investments of your life. You should expect dependable performance and unlimited hot water from the unit for more than 20 years.
Tankless devices require far less maintenance and servicing than tanked heaters, but it is still essential to maintain them properly. When they have problems, it is mandatory to know how to reset Rinnai tankless water heater.
How To Reset Rinnai Tankless Water Heater?
Having troubles with your heater can be very frustrating, especially when so many people live in your house. If all the warm water fixtures are linked to the same unit, it becomes more challenging for people to manage their day.
When you encounter any troubles with your appliance, an error code will appear on the digital display screen that will exhibit what the issue with your device is. The error code enables you to detect the problem and acquire an immediate solution.
Our detailed guide on troubleshooting Rinnai tankless water heater will certainly help you if you are experiencing such problems.
Error Codes Of Rinnai Rankles Water Heater
Error Code 2
This code means that the burner is not functioning during freeze protection mode.
Error Code 3
It shows that power was interrupted during the bath fill. When the power returns, the water will not flow.
Error Code 5
It means that there is some issue with the bypass valve.
Error Code 7
This code indicates that there is some issue with the water circulation flow rate. The problem occurs when the circulation flow rate is dropped below 2.1 gallons per minute.
Error Code 10
It means that the air supply or exhaust is blocked. The air supply issue can lead the appliance to severe damages.
Error Code 11
Rinnai tankless water heater code 11 means that there is no ignition in the heater. This issue is linked with the gas and gas lines, so it is better to call a plumber.
Error Code 12
This error shows that there might be a flame or electrical failure. Again, this issue is associated with gas and gas lines. That’s why; first diagnose the issue before going to the solution.
Error Code 13
This code indicates that there is some issue with combustion.
Error Code 14
It shows that there is something wrong with the thermal fuse.
Error Code 16
It is not an error but an over-temperature warning. It indicates that the unit has automatically turned off to safeguard itself from damage.
Error Code 19
This code shows that an electrical short exists in the wiring. This problem may occur because of a failure in electrical grounding.
Error Code 25
It shows various problems, but the common one is of condensation trap.
Error Code 32
It might be the problem of groundwater temperature. This code also shows up when the sensors are faulty.
Error Code 33
It means that the heat exchanger is not working properly.
Error Code 38
This code means that something is wrong with the CO sensor abnormality.
Error Code 41
This code lets you know that the freeze protection sensors have a problem.
Error Code 52
This error occurs in regions with high air pressure. This error is linked with the modulating solenoid valve, or maybe the POV valve is not working well.
Error Code 61
When this code appears on the appliance display screen, it indicates that there is some problem with the combustion fan motor.
Error Code 65
This error code exhibits that the water flow servo has some problems. When this code shows up, troubleshooting Rinnai tankless water heater or hard reset should be performed.
Error Code 72
It means that the flame sensing device has some issues. It also appears when the internal temp is high and flammable.
Also Read: How to Flush Rinnai Tankless Water Heater
Error Code 79
Rinnai tankless water heater beeping 79 is a severe problem that should be addressed immediately.
Error Code LC0 To LC9
These codes indicate the amount of limescale present in the tankless water heater. The higher rating shows that a higher amount of limescale exists in the device.
These days, smart tankless water heating devices are dominating commercial and residential properties. However, just like any other appliance, they are also equipped with advanced technology to encounter troubles.
Thankfully, they have error codes to interpret them to find out the possible solutions easily. With our guide’s assistance on how to reset the Rinnai tankless water heater, things will get sorted for you.
Well, we always recommend you to rely on professional services if you wish to have a prolonged life from your appliance.