Electrolux Refrigerator Service Manual page 23

As the battery has been detached, it can be
bent (see picture) to access the heaters paying
attention to the pipes.
Heaters and thermal cut-outs assembly
The defrosting heaters are fitted to the wings and
hooked to the battery by means of three clamps J;
to replace them, unhook the clamps with a pliers
(do not cut them because they can be used again)
and remove the heaters from the wings paying
attention not to deform them.
The fan
The fan is fitted with 2 screws.
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 23/25