Fig. 8.82. Scheme of start of function of self-diagnostics

The control unit of the conditioner has self-diagnostics function. Information on failures in work of air conditioning system are stored in memory of system in the form of codes of malfunctions. By means of buttons on the control panel of the conditioner it is possible to display on the display the codes of malfunctions which are stored in memory (see fig. 8.82 and tab. 8.5). As food of memory of the system storing codes of malfunctions is carried out from the rechargeable battery, codes of malfunctions remain even at switching off of ignition.