I have an old refrigerator that has started making a noise when it's
running. I have replaced the freezer fan and also tested the fridge without
the freezer fan running (no difference). I have checked the condenser fan;
it's fine. I have checked the compressor and that is fine too (I have
listened to it with a stethoscope and it just purrs). The noise seems to
come from the back inside of the refrigerator but it is not related to any
of the components I have mentioned.
Any ideas? Could it be a partially blocked refrigerant line?
What type of a noise...ticking, screeching, chirping?
Icemaker, icemaker fill valve, defrost timer, defrost hot gas solenoid
( only on very old fridges ) are some other common noise trouble
Refrigeration system/tubing -normally- won't make noises.
Appliance Repair Aid
i had/still have a old Whirlpool ref.. now its in the garage and used as
a spare for all the softdrinks and frozen foods we have... anyway it
would make noises sounded like an arc welder at times... well it finally
blew a fuse during the night.... the next night same think... then
again.. the noise was getting pretty bad... tool all the inside of the
freezer out and found that the defrost coil was making contact with the
inside back of the ref.. and it was like an electric welder..... short
or break in the defrost coil... replaced it and no more problems
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