A.O. Smith Error Code 121: The A.O. Smith Hot Water System has an error code 121, which means that the water heater is having trouble keeping its flame lit. Even though the heater may be starting up, the flame is going out too quickly and not heating the water properly. This is a problem that should be fixed by a professional technician. However, you can try checking the settings on the computer board to make sure they are correct. First, consult the manual for your water heater to see if there are any specific instructions. If everything seems okay, then it is best to call a technician to come and fix the issue
A.O. Smith Hot Water – Error Code 121
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A.O. Smith Hot Water System – Error Code 121
Is your A.O. Smith hot water system showing up with Error Code 121 on the screen? In this article, we’ll look at why it is happening, some potential next steps for fixing error code 121 and whether you should keep using your A.O. Smith hot water system.
What is a A.O. Smith Error Code 121?
The A.O. Smith Hot Water System has an error code 121, which means that the water heater is having trouble keeping its flame lit. Even though the heater may be starting up, the flame is going out too quickly and not heating the water properly. This is a problem that should be fixed by a professional technician. However, you can try checking the settings on the computer board to make sure they are correct. First, consult the manual for your water heater to see if there are any specific instructions. If everything seems okay, then it is best to call a technician to come and fix the issue
Recommended solution/fix steps
If you see error code 121 on your A.O. Smith Hot Water System, it means that your water heater is losing its flame. This is closely related to error code 11 (111). To troubleshoot, first check the settings on the computer board, referring to the water heater’s manual for guidance. If everything appears to be set correctly, it is recommended to call a professional technician to address the issue. Attempting to fix the problem yourself may result in further damage or potential safety hazards
Fault codes that are often associated with or mistaken for error code 121 are: Brand: A.O. Smith Hot Water System, Error Code: 121, Description: This error code is closely related to the error code 11 (111) as it is a sign that your water heater is losing its flame.While it may be igniting, it’s not keeping its flame and is going out before it can adequately warm up your water. Again, this is an issue for a professional – but you can check that the proper settings are in place on the computer board.Double check with your water heater’s manual first and if everything seems to be fine, then you need to call out a technician.
Error Code: 12l, 12I, 12Z, 12S, 12B, 12b, 1Z1, 1S1, 1B1, 16
Can I still use my A.O. Smith hot water system?
After seeing Error Code 121 on the A.O. Smith Hot Water System, the machine cannot be operated. This error code indicates that the water heater is losing its flame and is unable to adequately warm up the water. While it may ignite initially, the flame goes out before reaching the desired temperature. It is recommended to consult the water heater’s manual and ensure that the proper settings are in place on the computer board. If everything appears to be fine, it is necessary to call a professional technician to address the issue. Attempting to operate the machine without resolving this error code may result in continued malfunction and ineffective heating of water
