A.O. Smith Error Code 321: The A.O. Smith Hot Water System may show an Error Code 321, which means there is an issue with the inlet thermistor. This is a small device that measures the temperature of the water coming into the system. It is similar to the outlet thermistor, but it is located on the pipes where the water enters the system. To fix this problem, you should check for any broken wires, damage, loose connections, or dirt and debris that may be affecting the thermistor. Once you have cleaned and properly connected the inlet thermistor, the error code should go away and your water heater will go back to working normally
A.O. Smith Hot Water – Error Code 321
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A.O. Smith Hot Water System – Error Code 321
Is your A.O. Smith hot water system showing up with Error Code 321 on the screen? In this article, we’ll look at why it is happening, some potential next steps for fixing error code 321 and whether you should keep using your A.O. Smith hot water system.
What is a A.O. Smith Error Code 321?
The A.O. Smith Hot Water System may show an Error Code 321, which means there is an issue with the inlet thermistor. This is a small device that measures the temperature of the water coming into the system. It is similar to the outlet thermistor, but it is located on the pipes where the water enters the system. To fix this problem, you should check for any broken wires, damage, loose connections, or dirt and debris that may be affecting the thermistor. Once you have cleaned and properly connected the inlet thermistor, the error code should go away and your water heater will go back to working normally
Recommended solution/fix steps
If you see Error Code 321 on your A.O. Smith Hot Water System, it means there is an issue with the inlet thermistor. To resolve this, you need to check for any broken wires, damage, loose connections, dirt, or debris. Make sure the inlet thermistor is clean and properly connected. Once you have done this, the error code should disappear and your water heater will return to its normal functioning state
Fault codes that are often associated with or mistaken for error code 321 are: A.O. Smith Hot Water System, Error Code: 321, Description: This error code occurs when there is a problem with the inlet thermistor. It functions just like an outlet thermistor, but is found on your inlet pipes instead of your outlet pipes. The solution to this problem is just the same as the previous error code – check for broken wires, damage, loose connections, dirt and debris.Once your inlet thermistor is clean and properly connected, then the error code should vanish and your water heater return to its usual state.
Error Code: 32l, Error Code: 3Z1, Error Code: 32I, Error Code: 3O1, Error Code: 32B, Error Code: 3b1, Error Code: 3l1, Error Code: 3S1, Error Code: 3A1, Error Code: 3i1
Can I still use my A.O. Smith hot water system?
The machine can still be operated after seeing Error Code 321 on the A.O. Smith Hot Water System. This error code indicates a problem with the inlet thermistor, which can be resolved by checking for broken wires, damage, loose connections, dirt, and debris. Once the inlet thermistor is cleaned and properly connected, the error code should disappear, and the water heater will return to its normal state. It is important to address this issue promptly to ensure the proper functioning of the water heater
