Checking Error Code History on Residential Remote
This walk-through video will demonstrate how to access the error code history on the Noritz residential remote controller. Text directions:...
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Error Codes
The most common Noritz tankless error codes and what they mean
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Error Code 11
EC11 or Error Code 11 An 11 error code is an ignition failure. In other words, the unit recognizes there... -
Error Code 12
EC 12, or Error Code 12 An error code 12 indicates a flame loss. This means that the unit is... -
Error Code 14
EC14 or Error Code 14 An error code 14 indicates a significant overheat of the heat exchanger has occurred and... -
Error Code 16
EC16 or Error Code 16 The 16 error code occurs when the outlet water temperature spikes to an abnormally high... -
Error Code 20
EC20 or Error Code 20 The error code 20 means the High Limit Switch has been triggered. This error code... -
Error Code 29
EC29 or Error Code 29 An error code 29 indicates a problem draining the condensate1 from the unit. This code... -
Error Code 45
EC45 or Error Code 45 An Error Code 45 is specific to our NRCP and CB models. It indicates an... -
Error Code 67
EC67 or Error Code 67 An error code 67 is an AGM Abnormality. The AGM (Air Gas Mixer) is the... -
Error Code 71
EC71 or Error Code 71 The error code 71 is a “Gas Valve Abnormality. It’s a problem with the circuit... -
Error Code 73
EC73 or Error Code 73 The 73 error code indicates a circuit board setting issue. It is triggered by the... -
Error Code 90
EC90 or Error Code 90 A 90 error code indicates a combustion abnormality. This means that the mixture of fuel... -
Error Code 903
EC903 or Error Code 903 An error code 903 indicates a combustion abnormality, similar to an Error Code 90 but... -
Error Code 91
EC91 or Error Code 91 An error code 91 means incorrect gas type. For new installs: Verify the unit is... -
Error Code 92
EC92 or Error Code 92 An error code 92 relates to neutralizer1 life cycle and is the first warning that... -
Error Code 93
EC93 or Error Code 93 An error code 93 relates to neutralizer1 life cycle and indicates it has reached the... -
Error Code 94
EC94 or Error Code 94 (EC941 or EC942 on display window units) An error code 94 means the exhaust temperature... -
Error Code 760
EC760 or Error Code 760 An error code 760 is a remote controller transmission abnormality. In other words there is... -
Error Code C1 (premix model)
Troubleshooting for abnormalities due to Scale Build-up C1# If the alarm code “C1#” is flashing on the display window, it...
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