1. Circuit diagram DOWER OWER of a a N COMI TUBE Room ouTTUBE PISS K105 pes j Heel XY AC DISPI DISP2 a 9 N1 bs XT uji TR OUT AC L2 K K106 DISPL DISP2 TR IN e AC N K107 FUT HEAT N gt EH M1 OFAN x2 1 11BN 94 2 10RD z N C2 1uF OR 1 2uF OR 1 5ul Malfunction display 1 Indoor air temp sensor open short 8 segment display F1 with STATUS light flash 1 times and off 3 sec repeat 2 Indoor coil sensor open or short 8 segment display F2 with STATUS light flash 2 times and off 3 sec repeat 3 Outdoor coil sensor open short 8 segment display F4 with STATUS light flash 3 times and off 3 sec repeat 4 Freeze Guard protection 8 segment display FP 5 Indoor coil freeze protection STATU light flash 5 times and off 3 sec repeat 6 Outdoor coil high temp protection STATU light flash 6 times and off 3 sec repeat 7 Defrost heat pump type STATU light flash 7 times and off 3 sec repeat 8 Indoor coil high temp protection STATU light flash 8 times and off 3 sec repeat 9 Thermostat wiring error STATU light flash 9 times and off 3 sec repeat 10 High pressure protection optional 8 segment display E1 the highest display grade 66161287