Terry Pinnell wrote in message . ..
Tony Williams wrote:

The freezer compartment is kept cold by a fan circulating
air, from the cold coils behind the inner lining and through
the compartment. If the air circulation is blocked or stopped
then two things start to happen, the cold coils ice up, and
the compartment loses its supply of cold air. The icing-up
itself then reduces the air flow, which causes more icing-up,
and so on. Our fridge-freezer had a solid block of ice
behind the inner lining, from top to bottom.


One thing outstanding: where is the drip pan or whatever it's called?
I just can't remember what happened about the water last time, and
this time the volume has been much smaller. But, as mentioned
previously, I've found nothing I can access to empty anyway.

Hello Terry,
as you have worked out by now this is not a complex engineering
problem (well, the mechanism is, but the cure is simple - and I must
clean my fridge/freezer as well, now its been mentioned). Leaving the
door open was enuff to tip it over the edge - it prcipitated moisture
in the air, probably on top of the thermostat hence the -1 degree
reading.
Frost free fridges dont have drip trays - during the defrost cycle,
the waste water is evaporated to the atmosphere so no problem. What I
would suggest for maintenance is have a loook at the fridge
compartment drain tube - its under the freezing coils in the back,
probably got a simple trough arrangement to feed waste water to it.
This gets blocked and things start to grow in the fridge - usually
behind the 5 year old bottles of (whatever) that live there. Use a
piece of insulated elictrical cable to ream it out. Makes a difference
to efficiency, hygiene, and is "good for the environment" - chant this
as you do a dirty mucky job, makes you feel more socially
responsible....
de VK3BFA Andrew.