I had replaced the Blower motor in the 257B and even thought it blows and I can tell the compressor is running it does not cool like I would expect it to. Just barely can notice that its cooling. Someone told me that they usually will freeze you out which makes me think that its a refrigerant issue. I've notice that there is a port on the lower side of the condenser but its the only one I can see. Ideas on how to check the refrigerant on this unit/? Thanks for any info,.. Phil
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