Fault code
E0
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as parameter error fault.
A licensed technician confirms the actual cause.
View the canonical E0 resultVerified shared codeset
Every result below passed dual extraction agreement and source-anchor checks.
DISPLAY codeset
15 documented fault codes, shared only by the compatible models listed here.
In the display order below, the held evidence set runs from Rinnai EHPT180VM to Rinnai EHPT180VM; its published labels start with E0 and end with Et. The source and each model-mapping record remain visible on this page.
This result is published only for the models explicitly covered by the source evidence.
Fault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as parameter error fault.
A licensed technician confirms the actual cause.
View the canonical E0 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as water temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E1 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as high voltage fault.
A licensed technician confirms the actual cause.
View the canonical E2 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as fin temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E3 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as ambient temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E4 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as return air temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E5 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as exhaust temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E6 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as low pressure protection.
A licensed technician confirms the actual cause.
View the canonical E7 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as hot water temperature sensor.
A licensed technician confirms the actual cause.
View the canonical E8 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as high temperature protection of compressor exhaust air.
A licensed technician confirms the actual cause.
View the canonical EA resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as low compressor current.
A licensed technician confirms the actual cause.
View the canonical Eb resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as antifreeze protection.
A licensed technician confirms the actual cause.
View the canonical Ed resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as high compressor current.
A licensed technician confirms the actual cause.
View the canonical EE resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as communication fail.
A licensed technician confirms the actual cause.
View the canonical EF resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as the ambient temperature is not in the operating range of the heat pump.
A licensed technician confirms the actual cause.
View the canonical Et resultOfficial source
Rinnai Australia. Rinnai Enviroflo A Series Heat Pump Error Codes. Retrieved .