Behnam and colleagues discuss a freezer that is malfunctioning due to a wrong or incompatible part. A mechanic used a combination of an old and a new part to make it work temporarily. Paul, who is currently unavailable due to a knee operation, is expected to come and fix the issue properly in a few days. The temporary fix is not expected to last long. They also mention the cold temperature and the need to sort out the correct part when Paul returns.