I’m not sure about the rest of the model no but think it’s 01 or GB 01, it’s so old that the reg plate has been scrubbed clear. I’m trying to find out why the freezer is icing up quite badly but am struggling to remove the inner back panel. The bottom half is free but the top seems attached and I wondered if anyone could help please. Under the top lugs there are what look like split pins. I’ve tried squeezing them together then unscrewing but neither seemed to work.