I have a Kenmore Side by Side Refrigerator 596.58642891 that cools but doesn't freeze.
When we found the freezer food thawing, initial inspection revealed a mouse had built a huge nest in the condenser coils, blocking air flow.
After removing the mouse nest, the 'fridge temp would not get below 58* in either 'fridge or freezer sides.
Further inspection shows the evaporator coils to have a back side top tube temp of about 25*, then gradually warming as you follow the tubes down, reaching a temp of 58* at the bottom, then following the front set of tubes back up to the top, they gradually cool back down to the top front tube having a temp of about 40* (I would assume "heat transfer" from the rear set of tubes). The defrost unit is not on, and it does turn red when activated by the timer.
I have lots of experience with automotive A/C, and some with household A/C units, but when it comes to the 'fridge, I seem to be lost. One thing I don't follow is why frost is expected on the coils of a 'fridge, but we look at automotive and household A/C applications as being a sign of low freon or restricted air flow when frost occurs on the evaporator coils. I haven't taken the time to look to see if any of my gauges will connect to the 'fridge yet (the "drink" 'fridge has taken on the job of preserving food), but what would be expected Hi and Lo side pressures be for a 'fridge?
Could anyone shed a little experience on this?
Thanks in advance.
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