Envirosun heat pump troubleshooter
Select the fault code displayed on your heat pump to determine a possible cause and resolution.
If instructed to contact support, check your Owners Manual for the service agent contact details.
M3 models, available in 200L and 250L storage capacity, can be recognised by their silver/grey top and cream/off-white tank body, likely purchased prior to 2025. The M3 control screen is black with red digits.
M9 models became available in late 2024 in 200L and 330L storage capacity. They can be recognised by their shiny black or charcoal grey top. The M9 control screen is white with blue digits.