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How do you pump down a home central AC unit if you need to clean the coil and don't want to lose all the freon? [Edit categories]
Popularity: 34
What's wrong with your AC if the tubes are freezing and the air is not as cold? [Edit categories]
Popularity: 34
What is the fan speed relationship to suction pressure? [Edit categories]
Popularity: 34
What is the reason for a sluggish air conditioner fan? [Edit categories]
Popularity: 34
How do you get rid of a high humidity level in a central air conditioning system? [Edit categories]
Popularity: 34
Is it more economical to run a central AC unit with the fan always On or should you have the fan running in Auto? [Edit categories]
Popularity: 33
Is there a programmable thermostat for a unit that has 1 ac unit and 2 thermostats? [Edit categories]
Popularity: 33
What should you do if you have an AC leak in your attic? [Edit categories]
Popularity: 33
What would cause ac to leak inside the house even though water is still being channeled outside? [Edit categories]
Popularity: 33
What problems would you expect by closing off one of two return air vents? [Edit categories]
Popularity: 33
Why would a central air conditioning unit not blow any air in the house? [Edit categories]
Popularity: 33
Why does your fan unit keep running if the temp is below the thermostat setting and it should turn off since you have it set to AUTO? [Edit categories]
Popularity: 33
What can you do if your home air conditioner is icing up at the aluminum radiator core? [Edit categories]
Popularity: 33
Is freon the same as R-22 and what is the price per pound for freon? [Edit categories]
Popularity: 33
How can you safely remove a Trane XB12 5-ton compressor to install at another site and have a professional install it with a new furnace but have the compressor moved from a site 200 miles away? [Edit categories]
Popularity: 32
What should you do when your central air compressor is running but the cooling fan is not working? [Edit categories]
Popularity: 32
You have a 2 bed apt that is cooled by a window unit in the living area is it better to leave it running on low all day or to shut it down and turn it on high when you get home electric usage wise? [Edit categories]
Popularity: 32
Can you install union inside a wall? [Edit categories]
Popularity: 31
If heat reflective film on your windows will reflect 15 percent of the total solar heat entering your home should your AC unit have the ability to lower the temperature by an additional 15 percent? [Edit categories]
Popularity: 31
What size ton seer should you get for your 2000 sq ft home and is a 2-stage thermostat better for efficiency? [Edit categories]
Popularity: 30
Why does your air conditioner freeze up? [Edit categories]
Popularity: 30
Does the height of installation of a window AC affect the cooling and can you install an AC just below the roof of the room and still get good performance? [Edit categories]
Popularity: 30
How do you know enough freon is in your home central ac by monitoring the temperature flowing out of the air duct and what temperatures are correct for the outside temperature? [Edit categories]
Popularity: 30
Would a window unit help your electric bill decrease in conjunction with your central air which is now running all the time? [Edit categories]
Popularity: 30
What color hoses of a freon gauge do you attach to the low port of your home air conditioner to add freon? [Edit categories]
Popularity: 29
If you're having a home built and in the master bedroom there is a return air in the ceiling about 3-5 from a regular vent should the return air be this close? [Edit categories]
Popularity: 29
How can you convert a 120V box to 240V for AC? [Edit categories]
Popularity: 28
Is there a store in which you can exchange part numbers and payment for central air conditioning equipment without the design and installation service? [Edit categories]
Popularity: 28
What should you do if your residential AC outside unit fan will come on and the compressor will only come on for a second and then shut off and the unit is not throwing a breaker? [Edit categories]
Popularity: 28
What is the proper ratio between outside unit tonnage and the number of vents the unit can handle? [Edit categories]
Popularity: 28
What is wrong if you have a new AC and humidity odor but there are no water leaks in the house? [Edit categories]
Popularity: 28
Why will your outside compressor for your central air unit come on but the fan motor will not come on and there is a gurgling sound coming from the furnace? [Edit categories]
Popularity: 28
What's wrong with a central air conditioner unit when it keeps dimming the lights in the house on and off and blows warm air out of the vents? [Edit categories]
Popularity: 27
What is wrong if your home ac vents have water drops on them and the ac runs 24 hours and only cools to 74 degrees in a 575 sq ft 2nd floor condo? [Edit categories]
Popularity: 27
How do you tell which side is the low side? [Edit categories]
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Is freon ever needed to add to ca units if your system is 6 years old and in the past couple of days the air coming out of the vents is not as cold as it used to be? [Edit categories]
Popularity: 27
Why would your central air conditioner fail to reach the thermostat set temp while running continuously? [Edit categories]
Popularity: 27
Is it cheaper to turn electric heat off and on to heat a house or just keep it at a low temperature? [Edit categories]
Popularity: 26
Why would a new air conditioner expel a fish-like smell for a few minutes on a daily basis? [Edit categories]
Popularity: 26
What is the problem when the cooling coils in the inside unit are blocked with ice build up and the outside unit line to the house is iced up? [Edit categories]
Popularity: 26
What is wrong if you cannot get gas to your pilot light and you have already changed the electric control valve? [Edit categories]
Popularity: 26
Why does your air conditioner run but not blow cold air? [Edit categories]
Popularity: 26
Is a 120V 10000 BTU air conditioner cheaper to operate than a 240V 10000 BTU? [Edit categories]
Popularity: 25
If you have a two-story house and no one stays upstairs can you simply turn the AC off and only leave the downstairs AC running? [Edit categories]
Popularity: 25
What if your furnace kicks on and off until it reaches your desired temperature? [Edit categories]
Popularity: 25
What causes water to drip from the AC duct work in basements? [Edit categories]
Popularity: 25
How much freon does an air conditioner hold? [Edit categories]
Popularity: 25
What causes a squealing sound to emanate from the entire length of the small warm line running from the indoor unit to the outdoor unit of a central AC system that otherwise seems to cool fine? [Edit categories]
Popularity: 24
Why would your AC unit shut down in the middle of the night and then come back on the next night and stay on all night and work just fine and could it be the high humidity that shut it down? [Edit categories]
Popularity: 24
When the outside fan on a central air unit doesn't come on will the compressor still kick on? [Edit categories]
Popularity: 24
How can you test a compressor to see if it has shorted? [Edit categories]
Popularity: 24
What is the best 4 ton central ac unit for quality price and availability? [Edit categories]
Popularity: 24
If you need to ship a small refrigeration unit how do you keep the compressor from making noise like something inside is rattling? [Edit categories]
Popularity: 24
What should you do if the low pressure line is insulated and sweating outside the insulation above a suspended ceiling and dripping on the ceiling causing mildew? [Edit categories]
Popularity: 24
What would cause your inside air condition unit to make a roaring sound? [Edit categories]
Popularity: 24
What's wrong if you have a 3 and a half ton AC unit with 7 six-inch ducts and it was just installed with used components and is leaking condensation into the air return and freezing up? [Edit categories]
Popularity: 24
Why would the compressor be on when the inside temperature is lower than the thermostat setting? [Edit categories]
Popularity: 24
What is the problem if you've had your Trane central air for 5 years and you set the thermostat at 70 degrees but when it's 90 outside the temp is 85 degrees in the house? [Edit categories]
Popularity: 24
How can you change your thermostat if the temperature is changed through a security system and it needs an input of 12vdc-10 and your security system only puts out 5vdc? [Edit categories]
Popularity: 23
When installing new central air in a single story ranch with no existing duct work should the duct work go in the attic or the basement if both are an option? [Edit categories]
Popularity: 23
What is the difference between gas and natural gas and if your wall heater's pilot is too big maybe 8 how can you lower it to maybe 1? [Edit categories]
Popularity: 23
How do you size wire for a 20kw aug heater for a heat pump? [Edit categories]
Popularity: 23
If water starts to drip from the vents when it rains how is the water getting in? [Edit categories]
Popularity: 23
How long should it take for a central unit to lower the temperature by 1 degree and if your AC takes about 30 minutes per degree is that too long? [Edit categories]
Popularity: 23
What should you do if the 2-ton split ductless AC you just installed is not reaching its set temperature and ice is forming on the outside condenser and copper tubing? [Edit categories]
Popularity: 23
Why is an air conditioner leaking and what can one do about it if it is installed over the door to a store and is dripping and spilling on customers? [Edit categories]
Popularity: 23
What is a Radiant Barrier? [Edit categories]
Popularity: 22
If an AC reverses direction 60 Hz then why are there different-sized receptacle slots for hot and neutral since v and i are alternating direction each half cycle? [Edit categories]
Popularity: 22
Should condensate piping loops on an AC be cleaned if they are rusty and the sheet metal around it is rusted? [Edit categories]
Popularity: 22
How big is a flame on a natural gas furnace? [Edit categories]
Popularity: 22
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