On 19/01/2021 12:34, AnthonyL wrote:



The paper test is fine though I don't see why that would cause the
freezer outlet pipe to be full of ice (presumably).

I was thinking more about the general build up of excessive frost/ice in
the whole compartment caused by a faulty door seal. Much the same as you
would get if you left the door open for a few hours. The moisture in the
"new" air freezes.

Perhaps the freezer drain pipe is partially blocked with mould and
air-bourn debris/dust etc.. During a defrost cycle not enough water can
escape through a restricted hole during the defrost cycle and pipe above
the blockage ends up being still full with water at the end of the
cycle. This water now freezes meaning that during the next defrost cycle
the drainage is delayed as the water in the pipe has to thaw first
before any water can flow out, and then at a very slow rate. If the
pipe was not partially blocked there would be nothing to freeze and
during a defrost cycle would give an unrestricted passage for any water
immediately.

If you are turning off the freezer overnight then you may not see the
difference between a full flow of water or a restricted flow of water
from the drain pipe. Overnight gives the chance of draining a few litres
at a slow drip rate.

Poke something down the full length of the drain pipe. In the past I've
used things like the spiral plastic coated wire for hanging net curtains
up at a window but anything similar that has some flexibility will work.
You may be surprised what is in the drain pipe.






--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk