Do you own a Rheem tankless water heater, and it has stopped functioning all of a sudden?
Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? We have covered you.
This article will find symptoms, causes, and steps on how to reset Rheem tankless water heater.
How To Reset Rheem Tankless Water Heater?
Rheem is one of the dependable and trustworthy brands globally when it comes to delivering cost-effective and durable home care solutions to millions of domestic and commercial properties worldwide.
Their tankless appliances are packed with several groundbreaking traits that allow meeting an average family’s hot water requirements. However, since it is an electronic machine, you may experience some technical difficulties at some point in time.
Nowadays, all heaters use the computer board that tracks the heating process, regulate the parameters, and assist you in troubleshooting the potential malfunctions.
Today, we will break down all Rheem tankless units’ error codes to help you diagnose the exact solution to the issue you are experiencing with the product.
Rheem Tankless Water Heaters Error Codes Breakdown
Error Code: No Code
It occurs when the water flow rate is extremely low. The electronic control board will display the current temperature, but the unit is not working at all.
Error Code P1
Rheem tankless water heater error codes P1 indicates that the water flow rate is too low, but the device is still working.
Error Code 1L
It informs you that there’s an accumulation of limescale and scale deposits. This code indicates that it’s time to clean the device.
Error Code 05
This code indicates that maybe the vent exhaust or air intake is blocked. Perhaps, the pipes are not appropriately attached to the vent thermal. In both cases, the heater will still work.
Error Code 10
It specifies that a false flame has been sensed. You may want to call a specialist to grab information about how to reset Rheem hot water heater; there are a few things you can do first:
Error Code 11
When your system displays this error code, it means the ignition has failed. Numerous reasons could cause this code to appear. It is better to call a professional plumber for Rheem tankless water heater error code 11 fix.
Error Code 12
This code means that the unit cannot maintain a flame. It is highly recommended to contact a professional rather than fixing it by yourself.
Error Code 13
The Rheem tankless water heater error code 13 indicates the poor or improper combustion.
Error Code 14
It tells you about the glitch in the overheat wrap.
Error Code 15
It interprets that the heat exchanger has exceeded a temperature of 207° for more than 15 seconds. It is basically a boiling safety warning.
Error Code 16
This code means that the outlet water temperature has exceeded the preset thermostat setting.
Error Code 21
This code interprets that there is something wrong with the air intake filter switch.
Error Code 29
If you see this error code on the machine’s display screen, it indicates that the heat exchanger’s output temperature is too low, or the neutralizer is blocked on a condensing heater.
Error Code 33
It tells us that there is a problem with the outgoing water temperature sensor.
Error Code 34
This error code informs you about the fault in the combustion air temperature sensor.
Error Code 51
When you see this error code, it becomes necessary to learn how to reset Rheem tankless water heater. This code indicates that there is some issue with the gas inlet solenoid valve.
Error Code 61
It tells you that the combustion fan is not spinning correctly.
Error Code 72
It interprets that there is a problem with the flame sensing device.
Error Code 76
It shows that the tankless heater is not communicating appropriately with the remote control.
Error Code 79
When this code appears, it informs that there is some problem with the fan motor’s current. Your best bet is to get in touch with an experienced plumber, but if you want, you can follow these steps:
Error Code 99
It indicates that the heater’s flue is blocked.
Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. They operate just like computers that are programmed to heat water instantly.
Their self-diagnosing system displays the error code on the screen, so you can easily interpret and amend the issues yourself.
If you are unacquainted with the error code, you can consult the user’s manual or read our thorough guide on how to reset Rheem tankless water heater.
Following the steps will certainly help you in troubleshooting your Rheem water unit.