I’m not overly familiar with that system but if you download the manuals no reason you’d struggle to maintain yourself. Plenty of folk will offer helpful advice here too.
Having been stung in the past provoking them only by eating an ice lolly in their vicinity, albeit in my garden where they don’t pay rent, if you want to be inside your shed with the bar stewards feel free - I’d rather give them a wider berth
To be fair it cost me £20 and arguably is still going strong. Just doesn’t handle the cold well which is the same for most household fridge freezers :LOL: