diplomat apm6852?

hi there just wondering if you could help me i recently had a problem with my diplomat apm6852 fridge freezer the electric 6 pin module broke so i bought new one and fitted it now the fridge and freezer is back working fine just that when i close the door the light dosent go off so when i come to open the door the light is off (timed out as if door was open) now iv put it dow to a faulty light swith sensor or somthing of the sort i just cant seem to locate it any help wud be of assistance thanks john