This error code only applies to the Residential NRCR model. An Error Code 06 indicates that the recirculation flow is...

An error code 91 means incorrect gas type. For new installs: 1. Check for gas type, gas orifice and gas...

An error code 760 is a remote controller transmission abnormality. In other words there is a communication problem between the...

Error code (F)76 indicates a multisystem communication error, which means there’s a problem with communication between units. In a quick...

Error Code 64 is displayed only when the pre-mix unit is operating in Hybrid Hot Mode. This error occurs when...

Error Code 37 is displayed only when the pre-mix unit is operating in Hybrid Hot Mode. This error occurs when...