Questions & Answers about Jeg må få fikset lysbryteren, for den er ødelagt.
Å få + past participle is a common Norwegian construction meaning “to get something done / have something done (by someone).”
So Jeg må få fikset lysbryteren = “I must get the light switch fixed” (often implying you’ll arrange for someone else to do it, like an electrician).
If you say Jeg må fikse lysbryteren, that more directly implies you will fix it yourself.
No. Fikset here is a past participle used after få in the “get something done” structure. It functions more like an adjective/participle than a simple past tense.
Comparable pattern: Jeg fikk reparert bilen = “I got the car repaired.”