Good evening, I have a Konica Minolta Bizhub 283 with error C-3723. Could you help me with this error? solution? Thank you

CodeC3723DescriptionFusing abnormally high temperature detection (edge) • Detected temperature of the heating roller thermistor (TH2; edge) goes beyond a given temperature for a given period of time consecutively.Remedy1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open / close operation of the right door. 3 Check the fusing unit CN30-PRCB CN16, fusing unit-relay CN4AC-DCPU CN2 for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.