Mitsubishi Heavy SRC error codes
Models: SRC25QA-S, SRC35QA-S
0Normal11Start of compressor program12Below 20 rps13Over 20 rps14Over voltage (DC350V)15Short circuit of power transistor (high voltage side)16Power cut, loop failure21Abnormal result of PWM algorithm22Input below 2A (PWM above 90%)233 abnormal stops within 20 min27Error of outdoor fan motor (for DC motor only)28Different voltage29Low voltage31Cooling safe current I32Heating safe current I33Cooling safe current II34Heating safe current II35Cooling safe current III41Cooling overload 1 (outdoor temp. 36~40℃)42Heating overload 1 (outdoor temp. 5~12℃)43Cooling overload 2 (outdoor temp. 40~45℃)44Heating overload 2 (outdoor temp. 12~17℃)45Cooling overload 3 (outdoor temp. 45~℃)46Heating overload 3 (outdoor temp. 17~℃)50125℃ (compressor over heat)60Can't receive signals for 1 min. and 55 sec. continuously (reply in communication)61Poor indoor and outdoor connection62Serial signal transmission error71Rotor lock: below 16 rps72Rotor lock: above 16 rps73Poor phase position switching (U phase)74Poor phase position switching (V phase)75Poor phase position switching (W phase or not determined)76Start of compressor program (within 4 sec. after phase position switching)80Error of fan motor of indoor unit81Vent-pipe sensor error (abnormal stop)82Indoor heat exchanger sensor error (abnormal stop)83Heat exchanger liquid pipe sensor error (abnormal stop)84Condensation prevention control85Defrost control86High pressure control87Compressor over heat protection control
Codes the manuals give for these models. The brand's general codes: Mitsubishi Heavy