Troubleshooting

If a fault occurs with your Rinnai, an error code will flash on the digital display of the controller or control panel.  This will assist you with diagnosing the fault, and may enable you to overcome a problem without a service call.

WARNING: Some of the checks below may need to be done by a qualified service technicianCall a service technician for any remedy that involves gas or electricity, or if you have any doubt or reservation about performing the remedy yourself.  Please identify the error code displayed when inquiring about service.  

Tankless Water Heaters

View error codes

Direct Vent Wall Furnaces (with LED display)

Includes models 201FA, 263FA, 431WTA, 556WTA, 1004FA

View error codes

Direct Vent Wall Furnaces (without LED display)

Includes models 431FA, 556FA models. The error code will display by lighting up 1 to 5 of the temperatures at the same time.  For example, if the temperatures 60, 64, and 68 are lit up then the error code is 60 64 68 - Abnormal Combustion Fan RPM.

View error codes

Vent Free Fan Convectors

View error codes