Bosch WTH84000GB/01 Heat Pump Tumble Dryer Condensers Blocked With Lint

Thank you for getting in touch, Richard. I appreciate you sharing the details of the issue you're experiencing with your Bosch WTH84000GB/01 heat pump tumble dryer.

As you may have seen in many of my videos, I have never been particularly impressed with heat-pump tumble dryers. They are prone to blockages, and dealing with them often becomes a long, awkward job. In this case, it appears that the evaporator, condenser and compressor need to be lifted out together as one complete unit before you can clean beneath them.

Unfortunately, I cannot provide the workshop manuals here, as the manufacturer does not allow it. I can, however, send exploded diagrams so you can see how the machine is assembled.

Removing the unit is tedious work, and great care is needed around the gas pipes. Any damage to them could create a far more serious problem.

I tried to telephone you, but reached your voicemail. You will receive an email from me with my telephone number, so please feel free to call if you need further assistance.

I will also include a heat-pump maintenance video below. It may not solve this particular issue, but it should give you a clearer understanding of the common faults these machines develop.

Thanks very much for getting in touch.