I have an upright fridge freezer of a brand called ‘General’. Freezer is working fine and all however the fridge below is not, in fact it is barely reaching 16 degrees Celsius on its maximum setting. I read somewhere that this could be due to a faulty circulation fan or clogged drain, both of which are located behind freezer. My problem is that I cannot take off freezer’s back panel which has a visible gap all around but no screws. I even tried to remove the fridge’s side outer panel maybe I gain acess that way, but albeit I removed all the screws the panel won’t budge. Any ideas please?