Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Pressure Sensor

The pressure sensor is installed on the upper part of the receiver/drier. This sensor converts high pressure detection of refrigerant to an electrical voltage signal and supplies it to the ECM. The ECM controls switching compressor idle speed and cooling fan operation by the electrical voltage signal.