Garden Shredders (Layfield TS15)

Two Einhell GC-KS2540 garden shredders -electric.
Hoping someone can use for spares or repair.
Impact shredders i.e. have blades inset in spinning disk which slice through material rather than crushing it. These are good shredders, when working and I used the 2020 produced one (see info label) for 3 years with great success. Then motor started to cut out after about 20mins of use and still does now. Bought the 2024 produced (see label) one on ebay (as new) but due to illness was unable to set up and try out before return date expired. That one worked for a short while then just stopped. It is possibly a thermal cut out problem on both of them?
The two pairs of reversible blades alone, are worth £30.
Collection or I can deliver within 12 mile radius