No series badge appears on the white WTB86201UC, a discontinued condensation dryer with a vent-free setup and a reservoir for condensate. The drum is 4.0 cubic feet, the cabinet 23 1/2 inches wide. The WTB prefix is among the older ones Bosch has used here, so these dryers are usually well past ten years old.
At that age the drive parts are the ones to watch. A belt that has stretched slips at start-up, so the motor hums while the drum hesitates, and people blame the motor when it is the belt. If the belt has snapped or come off its pulley entirely, the drum will not turn at all while the motor runs. Neither is costly to fix.
A worn drum bearing is more serious, and it announces itself with a rumble that rises as the drum speeds up. Condensers on machines this old are often heavily loaded with fine lint too. We look at the belt first, then the bearing and condenser, and tell you where the economics land.
Probably the belt has broken or jumped off its pulley, which is about the most frequent and cheapest dryer repair there is. We confirm that before suggesting anything about the motor.
Where the belt, rollers, sensors or door parts are involved, usually yes. If the drum bearing or control board is the problem, we are straightforward about the economics and give you a written price first.
A worn drum bearing, most often. A loose roller can sound similar, so we check the rollers and belt first. The bearing is the larger repair, and we tell you honestly when it is the cause.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.