The expansion valve on my AC is creating a large amount of condensation to the point the water is dripping down the side of the furnance and into the filter. (I am not sure if the valve is in fact an expansion valve, but it is similar in size and shape as the expansion valve on my 68 Camaro.) At any rate, the valve and the approx 7/8" diameter copper pipe connected to the valve is covered in foam insulation but apparently it has no effect on sweating. I was told that the valve will sweat if the freon level is low. Does this sound like the cause of my issue?
can you explain more in detail on what the liquid line problem can be (i.e., kinks in the line, causing flow problems). Also what is a TEV? thanks for your reply
Are the small capillary tubes on your TXV exposed outside the coil cabinet? They will sweat natrually if not housed within the A-coil box. They are the very small spider like tubes on the outlet side of the expansion valve. If the drip seems to be comming from inside, than that's a different story.
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