my self-defrosting (Fridgedair - upright and side by side)
fridge is freezing up on a weekly cycle. If i defrost the
**cooling coils** in the freezer manually on Monday the coils are
frozen/frosted up by the following Monday... essentially blocking
the cold air from going to the refridgerator side.

When i manually defrosted i measured the resistance of the heater
element going around the cooling coils at 19.2 Ohms ?

What could be possible conditions to cause such a problem ?

what sort of components or actions should i be doing to repair ?

helpful advice greatly appreciated.
robb