Appliance repair technicians must also have skills in high mechanical aptitude, have impeccable written and verbal communication skills, work adeptly with repair tools, be okay with lifting heavy machinery, and of course, be incredibly skilled in troubleshooting problems. Physical Demands: While performing the duties of this job, the employee is required to drive; stand; walk; sit; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl; and talk or hear.