Full Product Manual

Rinnai I-Series Condensing Combi Boiler User’s Informaon Manual 25
Diagnosc Code Diagnosc Code Cause
E:100 Air Supply or Exhaust Blockage/Condensate Trap is Full
E:110 No Ignion
E:120 Flame Failure
E:140 Heat Exchanger Overheat
E:150 Venturi Control
E:161 High Outgoing Temperature
E:170 Venturi Blockage
E:190 Electrical Grounding
E:250 Condensate Pump (Accessory)
E:310 Freeze Protecon Thermistor
E:321 Outgoing Thermistor
E:331 Heat Exchanger Thermistor
E:341 Inlet Thermistor
E:353 Supply Thermistor
E:363 Return Thermistor
E:380 Exhaust Thermistor
E:393 Outdoor Thermistor
E:400 Pressure Sensor
E:430 High/Low Water Pressure
E:443 Low Water Cut O
E:520 Solenoid Valve Circuit
E:540 High Exhaust Temperature
E:610 Combuson Fan
E:631 DHW Recirculaon Pump
E:651 Water Flow Control
E:661 By-pass
E:670 3 Way Valves
E:681 Hot Water Supply Temperature Abnormality
E:700 PC Board
E:710 Solenoid Valve Circuit
E:720 Flame Rod
E:890 Freeze Issue
E:999 PC Board Mismatch
E:LC Scale Build-up in Plate Heat Exchanger
When the boiler detects an error or unexpected performance, a diagnosc code will display on the
controller and a beeping sound will generate. Contact a qualied service provider whenever a
diagnosc code shuts down the boiler.