We perform technical services on the Philips products, the FR2 and FR2+ (and any Philips AED for that matter) dont require any periodic maintenance or service inspection (performs it self hourly, daily, weekly, monthly). A visual pass / fail test and battery / pads replacement at spesific intervals are the only requirements (this the users do in most cases by themselves)
If you want you can perform a electrical safety test (we use the IEC62353 Direct Leakage for routing maintenance), noting that this falls under a class II device, but it is a bit extreame (we dont even do performance verifications with defib testers except if there is something very wrong - only did it once due to failure of unit and needed documentation for factory)