Hello to all from a newbie to the forum. I will try to make this as short as I can, Purchased a new mobile mansion about a year and a half ago, was amazed at the lower bills until late summer when the AC was running too much compared to earlier and the bill sky-rocketed, it was under "full" warranty so I called the co. that installed the unit and the same guy came out that installed it (his sweat worked looked really bad, I can and have done much better) He said one of the connections was leaking and he put more 410A in and said he would be back in a week to "fix" it. The AC ran great, as good if not better than before. during that week I picked up a sight glass and paid him a few bucks to install it when he "fixed" the leak, I don't think the unit ran as good as before after that but it was late summer and before long it was cooler and there were no issues. This brings up to this summer, as soon as it really started to heat up a couple months ago the unit seemed to run too much and the bills are about the same as this time last last year before the repairs. Called him again and he spent 10 min. doing a sub cooling test and declared all was fine took my money and left (now it is not under full warranty) If I watch the sight glass about every 3-5min I see a 10-15sec run of gas through the sight glass, is it possible he let air into the system when he repaired the leak and did not fully vacuum it out or am I possibly low on 410A? Obviously I am no expert but it seems pumping gas to the orifice is not a good sign.....

First time poster and I would like to get an opinion on what could cause this. The suction line insulation before the compressor is deteriorating at a rather rapid pace. There is a large wet spot under it on the concrete. The foam is soaked. Smells like water but not sure if gas is leaking out. Not sure what could cause it.