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AnthonyL AnthonyL is offline
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Default Fridge/Freezer Auto-defrost failure

On Wed, 20 Jan 2021 07:01:39 -0500, Paul
wrote:

Brian Gaff (Sofa) wrote:
Well as you know, I have opposite problem as its the fridge that does not
defrost, but my fridge definitely does not have drain anywhere, and it kind
of makes one wonder how it was supposed to work. The defrost works it just
comes out the door at times when its opened.
In the case of the original query, does the freezer actually look coated
in ice? From your description it sounds like its only in the pipe. In that
case perhaps the pipe is supposed to be insulated from the cold and the
insulation has gone and hence its freezing up. Normally you would expect
freezer insulation to prevent this problem as the air is supposedly warmed
as it exisxits with its water vapour by going near the hot end of the heat
pump.
Brian


They put a drain tray down at the very bottom of the fridge.

Some fridges have a grillwork at the base of the fridge,
and this decorative detail hides the tray behind it.

The grill can be adhered by plastic posts sticking out
the moulded piece of grillwork and plugging into holes
in the steel fridge chassis. You pull the grill away from
the chassis, to expose the tray. Then, using a flashlight,
visually examine the tray for water content.

If a drain somewhere in the system plugs up, water comes
out somewhere else, and the tray will remain dry. Depending
on whether the fridge is leveled via the leveling legs,
determines whether any water residue is in the front or the
back of the tray. A person attempting to stick a finger in
the tray, might not find any water, if the tray happens to
tip backwards a bit and all the water is at the back.

The rising warm air movement up the back of the fridge,
pulls air through the front grill, and that dry air passes
over the tray. The tray is gently dried by that quite-small
airflow.

Like all exceptional plastic items in our lives, the tray
can crack, leading to the floor underneath rotting out in
sympathy. Consequently, for the lazy homeowner, it pays to
occasionally remove the fridge from it's resting spot and
inspect the tray and/or flooring for damage. I have a
"plastic rail kit" which allows the fridge (not having wheels),
to be slid out on the plastic rails without damaging the floor.
This allows cleaning of any accumulated dust behind the unit,
but also allows the flooring to be checked. I have to pull
it out typically, when the stupid defrost timer needs
to be replaced yet again.


I have to pull the whole unit out every time to defrost otherwise the
tray, which sits on top of the motor, will overfill. I put the pipes
into a bucket and that is how I know there is 1.8L of water coming out
of the freezer pipe.


--
AnthonyL

Why ever wait to finish a job before starting the next?