Our central air unit keeps freezing up -?
Question:it's freezing from the coils all the way out to the line that goes to the unit! Does anyone know why it is doing this? I am tired of not having A/C!
Answers:
Your refrigerant is low regardless of what your hubby's friend says. The exact same thing happened to the ac unit on the last house I owned. Fortunately,. I am in the AC business so I just did a leak test on the system and re-charged it with the proper refrigerant. If your system has a pinhole leak somewhere in the evaporator coil (indoor unit), condensor coil(outdoor unit) or in the line set (the pipes connecting the indoor and outdoor units) the refrigerant can and will leak out over time (sometimes it takes a year or longer). You may not notice it until you get to the cooling season and it seems like your AC is not shutting off and not cooling either. When it happened on mine the pipes iced up all the way into the indoor unit and the evaporator coil iced up also.
Get a new one.
You air filter in the house my be too thick. Try a thin one made out of spun glass (usually blue). If that does not work you will need to get it serviced.
waaa[like a baby] LOL, jus call a a/c repair man , not like ya can perform the maintainence anyhow= gotta be certified to contain and recharge a/c systems.
You need to get a pro air man to fix it.It is your freon it is low.When the freon is low your air conditioning freezes up.
Your refrigerant charge is low thus allowing the evaporator coil temp to drop below the 40 degree average. Once the coil temp drops to below 32 degrees the moisture in the air freezes onto the coils. You will have to call a licensed professional. If the unit is very old and uses one of the discontinued refrigerants like freon R12or R22 you might have to replace the unit. Is this a window unit or central air? That will be important to the choice of refurbishing or replacing the unit.
You've either got
1/ a gas leak - you will need a competent, qualified A/C technician to fix this.
2/ blocked dirty filter, in other words there's not enough air flowing across the coil.
Before you call anyone, check your furnace filter, replace if dirty, look at the evaporator coil inside your furnace to see if it is covered with dirt or lint, then check the condenser on the outside and wash it thoroughly with a hose and flush off off as clean as possible...start the unit again, if it ices up on you it is low on refrigerant. At this point it is time to call a repairman
marsh all the way
Your A/C unit has a leakage in the freon (refrigerant) piping. This is why freon gets lost in the atmosphere. Everything will be fine whenever fresh quantity of freon is added in the system. Gradually, it is lost partly in the atmosphere. This is the reason for lower cooling and freezing on the cooling coil. Only a fool will tell you that too much of freon in the system is your problem.
Remedy; Hire a new mechanic, who is qualified to do the job. He must remove the freon from the system, pressure test the entire piping network, identify the spots of leakage and seal them. Re-test the piping under pressure and then fill up the freon.
Change the mechanic and not the A/C.
Not enough air is moving through the condensor. You need to to replace the air filter first. If that fails to fix the problem you may need to have the condensor cleaned. It sits on top of your furnace.
Yes it's probably low again (on freon) open the unit up and look for a leak. Oily spot , muddy looking spot, it could be on the coils, copper lines, or valves themselves could be leaking.
there could be a couple of things wrong with your system,a lot of people could give some answers and some guesses,but you are better of getting a certified,qualified ac company to fix your ac.
Usually the coils will freeze if your thermostat is set too low. Try raising the temp so there is only 5-10 degrees difference from outside temps.
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