Re: Bosch Heat pump Dryer WTW84560GB/11
if its the first heat pump dryer you have looked at you have to understand how they work. not that I doubt your knowledge but you have to think a different way
a normal dryer heats the air with an element, this evaporates the water, and the condenser that’s cooled with air from the room takes the saturated air and condenses it out
now a heat pump dryer has no heater so in effect its a de-humidifier in a box. the air is blown around the case across the clothes, This air is passed through a cooled heat exchanger (evaporator) so it forms condensation and reduces the humidity of the air this then passed through the condenser of the system and flows back to the clothes. the only heat in the system is waste heat from the compressor
so in essence they don’t get very hot at all, more like slightly lukewarm
you need to find out if the compressor is running and check all the filters
Dave