Any one had any issues with a the ttr50 cutting out.

Will be fine for 15-20mins sometimes longer then will just cut out. Will start again straight away but cut out after a minute. Then leave it to sit for 15+ minutes and it will repeat the same cycle. Any tips on where to start to looking my young fulla is starting to get more eager and its a bit disheartening for him having it cut out all the time.
Thanks

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