Fault code
E01
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as high pressure protection.
A licensed technician confirms the actual cause.
View the canonical E01 resultVerified shared codeset
Every result below passed dual extraction agreement and source-anchor checks.
DISPLAY codeset
13 documented fault codes, shared only by the compatible models listed here.
In the display order below, the held evidence set runs from Dux 270DHB36 to Dux 270DHC36P; its published labels start with E01 and end with P82. 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 high pressure protection.
A licensed technician confirms the actual cause.
View the canonical E01 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a wired remote control communication failure.
A licensed technician confirms the actual cause.
View the canonical E08 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as winter frost protection.
A licensed technician confirms the actual cause.
View the canonical E09 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as DC motor stalling.
A licensed technician confirms the actual cause.
View the canonical E11 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as high pressure switch three-times protection.
A licensed technician confirms the actual cause.
View the canonical E43 resultFault code
Red means the documented fault involves safety-critical, leak, electrical, refrigerant, lockout or overheat language.
Documented as discharge overheating three-times protection.
A licensed technician confirms the actual cause.
View the canonical E45 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a bottom water temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P01 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a top tank water temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P02 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a discharge temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P03 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as an ambient temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P04 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a coil temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P05 resultFault code
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Documented as a suction temperature sensor failure.
A licensed technician confirms the actual cause.
View the canonical P07 resultFault code
Red means the documented fault involves safety-critical, leak, electrical, refrigerant, lockout or overheat language.
Documented as discharge overheating protection.
A licensed technician confirms the actual cause.
View the canonical P82 resultOfficial source
Dux Manufacturing Limited. Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C. Retrieved .