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Repair information for freezers.

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I defrosted the freezer a few weeks ago and now it's not freezing

I recently defrosted the freezer due to ice build up. However now the freezer is cooling however not freezing.

The pipe in the corner carrying the gas has ice on it and I guess its getting nearly frozen but not enough like it was.

I've managed to transfer everything over thankfully and rechecked the freezer. Nothing seems to be leaking.

At the bottom there is a out pipe with what looks like paper sealing the hole.

https://imgur.com/gallery/8iZlj2f

Anything I can do to sort this issue out or is it a case of getting a professional?

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Hi @smokedspirit,

What is the make and model number of the freezer (or is it the freezer compartment in a refrigerator)?

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Hi @jayeff

Cda fw880

It's an integrated freezer

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How did you defrost it? If I'm not mistaken this is probably an r134a system. If the refrigerant gets too hot it can form a waxy substance that can clog capillary tubes which is the very small diameter copper line that runs to the evap on alot of smaller appliances. If yours has a capillary tube and it got plugged up there's a good chance that it needs professional attention.

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Hi @smokedspirit

I'm sorry I'm not familiar with your model and can't find the service manual.

Is the compressor motor running continually trying to drive the temp down to the set temp?

If it is stopping occasionally and then starting again, it may be a faulty thermostat indicating that the set temp has been reached and that it is OK when it's not.

Normally the evaporator unit inside the freezer should be at -18°C (0°F) before the compressor turns off, so if it's not getting down to that temp and the compressor is running continually then there may be a problem with the sealed system. This would require a licensed professional to check it out

Initially a small amount of frosting on the pipes may be normal as the pipe temp may be cold enough to condense and freeze any moisture in the air that enters the freezer when the door is opened. If it builds up to a block of ice at the one location this indicates a blockage in the sealed system near that point. Again a licensed professional would be needed to check this, not only because they have the right equipment but also it may be required (depends on your location) due to the environmental regulations regarding the handling of refrigerant gases. Where I am you can't even buy refrigerant gas without a license.

You could check if the door seals are OK and providing a good seal and not letting any cold air out (or warmer air in if you like).

Place a sheet of paper between the door and the door jamb, and with the door closed normally, try to pull it out. It will come out with a bit of an effort, but it definitely should fall out by itself. Try this at various places around the door, top, bottom and both sides.

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