True error codes and service modes

Pick your True model to see its error codes, how to enter service mode and what each setting does.

US maker of reach-in, undercounter and display refrigeration. Units use controllers from several makers, so codes depend on which one is fitted.

Controllers

• True Reach-in and undercounter electronic controls (Carel, Danfoss ERC / ETC, LAE)Refrigerator / freezer controller · 18 codes

ServiceModes is not affiliated with True or any other manufacturer. Written in our own words from the manufacturer's documentation.