My kioti dk55 air is not getting the lines cold. This is a new compressor , systems has been flushed with a new expansion valve and still won’t cool.. and it deals what I need to do next

SOURCE: A/C won't blow cold

check the compressor clutch, if it still won't blow cold, the system may have bled off its refrigerant charge, you may have to have it recharged at a shop.

SOURCE: We have a 2003 Chevy

Verify that the temperature control inside the vehicle is actually working and not stuck in the hot position.

SOURCE: does 1998 tahoe with rear a/c have two expansion

try adding freon with a dye in it, sounds you have a leak,pay special attention to the a/c lines that run under the truck. notorious for having pin hole leaks,check these and get back to me we'll go from there. hope this helps get back to me Thanks Ray

Ronny Bennett Sr.

• 6988 Answers
• Posted on May 17, 2010

SOURCE: 94 civic 1.5 air condition won't blow cold,

Are you using gauges?What are the pressures?And are the cooling fans coming on when ac is on?

Testimonial: "Changed compressor and cool as can be in Arizona"

SOURCE: Air conditioner stopped cooling. Dealer diagnosed

It could be that there was more than one leak and the dealer found only one. The AC system has two pressure switches to protect the compressor from damage---a low press. switch cuts off the compressor when there is not enough refrigerant in the system, the high switch cuts off when pressures get so high they could blow out the seals. Both are a result of a leak--refrigerant leaks out and air can leak in. Air will compress and when it does, it gets hot--so no cooling, and pressures go way up. So the compressor may have been stopped by those protective switches.

Of course, there could be a bad relay or other circuit malfunction.

Another possibility is that the compressor sat too long before being repaired (but we are talking about weeks going by here, not days). The air and moisture (humidity) that leaks into the system during this time creates acids that will attack the metal reed valves in the compressor. On restart, the damaged metal valves eat themselves in short order. If this is the case, the compressor ran until it seized and will need to be replaced. This particular problem is impossible to diagnose. So the dealer may have done his best.

Testimonial: "Thanks. I did wait a few weeks before bringing car in for AC repair, so you could be right about the compressor. Ewwww."