Q. Unit is only 5 yrs. old, not sure if I'm quoting right I had about 5lbs. of pressure they took it up to 60-70 I believe.

A. Average range $175- $250. unless there is a leak on the line. than it's more.

Q. We desperately need an exhaust fan installed in our upstairs bathroom. There is one tiny window, which is not enough to expel all of the moisture (esp. living in FL!)... and no air conditioning vent. The bathroom is located on an exterior wall so I wouldn't think it would be too complicated. I just don't know who I should call to do it.

A. Actually, either one can do this job. When building new houses the electrician sets the fan housing and runs the wires, then the AC man runs the duct work when he roughs in his AC unit. Since there's gonna be a switch involved, I'd call an electrician first.

A. I use a guy named Tanner , Bill Tanner . I think its Tanner Air conditioning . He has always done a great job for us and never tried to charge for something that wasn't needed. Good Luck

Q. Please excuse my ignorance, but is there a portable air conditioning unit (blows out COOL AIR in a HOT ROOM) without being attached/fixed to the wall, as in carry it with you just plug it in to a wall socket and have it blow out cool air. I know this may seem like a dumb question, but a simple answer would be much appreciated. Thank you!

A. There are two units that are kind of like that, but not quite. one is called a swamp cooler. they evaporate water to absorb thermal energy in a room, but make the room more humid, and only really work in dry climates. however, they are relatively cheap to buy and use little energy. the other is a regular AC unit, but, this is not a window unit. they make one that is a free standing floor unit that can be pushed around and plugged in anywhere. however, the only downside is that there is a 3 or 4 Inch diameter hose that comes out of the back of the unit that must be run outside, through a window or a cat door or something. the unit is similar to window units in that it must move the heat from the room to the outside, but it does not have to hang out the window. they are about as expensive as regular window units. and are much more portable. you just have to point the hose outside. just remember, the heat has to go somewhere. it is very hard to just make it disappear (like an endothermic reaction, a reaction that takes heat)

Q. Well my air conditioning broke and we had some people fix it and then it broke again... every time i want it to go to a certain temperature like 75 or 74 it wont move it will stay at like 88 and the 80's and i dont have the number to my ac guy and how could i fix it... i have a digital ac thermometer thing. no the outdoor fan is not runnining

A. Don't take this personally, but if you use phrases like "digital ac thermometer thing" then you aren't qualified to repair an air conditioner. You can check simple things like the circuit breaker. But if it is tripped, it is usually for a reason. And if it trips multiple times, there definitely is a problem. If you aren't satisfied with the last co. Try another one. There are lots of companies in the yellow pages. Or ask a friend or neighbor if they know someone they can recommend.

Q. What is involved in servicing this.

A. The air handler {AHU} is the large metal box it is used to condition and circulate air as part of a heating, ventilating, and air-conditioning. Depending on your unit, it employs the squirrel cage, motor, coils …etc. Unless you are doing work to the system, the only part of the AHU you would be concerned about {depending on its location} is the filter.

Q. My wife and I purchased this used house about a month ago. Before the purchase the home inspector alerted me to a leak had been repaired hours before his inspection. The repair was at the elbow of a drainpipe coming from the bottom of the air handler, going through the crawl space, and exiting into an adjoining wall. After moving into the home, I began to smell a damp smell coming through the air duct when the air conditioner was in operation. In addition, all three of us have quite sensitive noses and began to show signs that something was amiss,. I began to inspect, looked into the crawl space and found no evidence of a current leak but there was a lot of dust, dead cockroaches, and a similar damp smell. I also took the panels off the air handler and noticed mold all over a motor, which I suspect, is the blower and one side of the evaporation coils. Since this is a 3-ton system (the a/c is a fifteen year old Ruud and the air handler is an old Tempstar) in a roughly 2,100 sq/ft home in Mississippi, I was seriously considering replacing this system in a couple months. The system is cooling but does not cycle as often as I think it should. I have been all over YAHOO! asking questions so I know many of you are tired of reading my posts. I had planned to order a system from an online company called Alpine and getting a contractor to install it. Now I am assuming that my air conditioning ducts may need cleaning too and it may be more prudent to pay retail with a local company that not only installs systems but also cleans air ducts. In an effort to improve the air quality a bit, I was thinking about getting a mask, shop vacuum, gloves, bleach and water solution, sponge, and evaporator coil cleaner and cleaning the coils, blower, and crawlspace until we are ready to replace the system. Am I correct in my assumptions can anyone give me prudent advice?

A. You will receive the best answer from a HVAC (heat ventilation and air conditioning) contractor.

Q. I just moved into a new home that had never had the ducts cleaned. The house is a ranch with gas forced air heat on one zone with about 9 vents. I found this company on a coupon for $45 which included unlimited vents and a couple access holes. When the company began their work they found mold and the price skyrocketed from $45 to $1400. Does this sound like a screw job or is that price accurate for mold removal and duct cleaning?

A. Mold removal/remediation is entirely different from air duct cleaning. However, it is not uncommon to find mold in your air ducts. That is why we recommend the Electro Breeze Duct Mount UV kit at http://www.allergy-relief-air-purifier.com/air-conditioning-filters.html. This unit will eliminate mold and bacteria from your indoor air and keep your air conditioning coils clean from mold. You must consider that to remove the mold from your air ducts, the air duct cleaning company is entering into a potentially dangerous situation for their employees. This requires expensive equipment and a person with the skills to do the remediation properly. Now that they have knocked the mold loose, you will need the high efficiency filtration and ultra-violet light of the Electro Breeze DMUV kit to kill and capture the mold spores in your indoor air. I hope this helps.