repair of washing machines. hand of a repairman with a turbulent electric heater covered with a coating of hard water

boiler broken calc calcium caucasian cause coil damaged defective dirty domestic electric element failure fault faulty hand heat heater heating inox iron laundromat laundry lime limescale line machine maintenance mechanic metal mid object obsolete old repair reparation rusty scrap scum service serviceman stainless steel technology turbular unhygienic washer washing water