Hi
Undo the 4 small screws on the base off the unit and remove the 2 slide outs, on the side, the brushes can then be removed, then use a dog grooming comb to clean the brushes, re-insert and replace the screws,
The brushes can be cleaned without removal, we normally clean at the end of each job.
Sorry to hear you didn't like it John, looks likew you are in the minority though.
Have you sold the beast yet, someone will get a bargain if they buy it, from what Barry knuckley told me the temperature is better than most mainline production TM's
Best regards Nick