Rinnai RHFE-308 FTR - Manual (Page 21)

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Code Displayed Fault Remedy
ERROR MESSAGES
The Rinnai RHFE-308FTR has the ability to check its own operation continuously. If a fault occurs, an error
message will flash on the Digital Display of the control panel. This assists will diagnosing the fault, and may
enable you to overcome a problem without a service call. Please quote the code when enquiring about service.
In all cases you may be able to clear the Error message simply by turning the heater Off, then back On. If the
Error message still remains or returns on the next operation contact Rinnai or your nearest service agent and
arrange for a service call.
Ignition Failure
Flame Failure
Overheat
Room Overheat
Room Temperature
Sensor Faulty
Overheat Temperature
Sensor Faulty
Sparker Failure
Sensor Breakdown
Combustion Fan Failure
Faulty On/Off Switch
Faulty Solenoids
Faulty Flame Rod
Communication Error
Flue Block
Check gas in ON.
Service call if repeated
Check gas in ON.
Service call if repeated
Clean Filter.
Service call if repeated
Lower room temperature
to less than 40 deg. C
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Turn Heater Off, then back On
Check around flue terminal