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ac units do not consume gas
they leak it out
the dye is only visible under an ultraviolet light and yellow lens glasses
an indication of leakage is an oil damp area on the pipe , fittings etc
there is a set amount to put in and it is done with pressure gauges
so best advice is to get in an accredited ac professional and have it fixed properly
First of all let me introduce myself. I am an ASE certified mechanic and holds EPA certification on HVAC. Before I begin I would like to start with some warnings and caution when servicing automotive AC.1.) It is against the law to purposely vent any type of refrigerant out into the atmosphere, and that is including R134.2.) Never charge an AC system through the high side because it will burst the can, and cause injury.( although the system is design so that they low side has different connection). 3.) Never overcharge a system. Not only will it not cool properly, but it can damaged the system. 4.) Although R134 is none toxic, it produces toxic gas if exposed to flame. 5.) This last one is common sense, keep away loose clothing and any objects away from moving parts. Sometimes we overlook this when working on things. Now lets begin. Common cause of AC problem in cars is leakage. This is because the system is subjected to vibrations unlike in houses where the unit just sits there. Also the hoses used in cars are threaded kinds where the pipe in houses are brazed permanently. The system in a car has a lot of rubber O rings and and gaskets that fail over time. There are several ways to detect leak. One of the most common type is ultra violet light and green dye. An electronic leak detector is the best kind to use but they are expensice costing up to a few hundred dollars. A lot of the leaks can be repared by just relacing with new O rings and vice versa. Also leaks developed when the system is dirty, and turns acidic, eating a leak slowy on the evaporator. If the leak is really bad, it may sometimes be cheaper than having to buy all the tools required to fix it. If the system needs to be opened make sure that a recovery system is used. There is a hefty fine on releasing refrigerant purposely. I know if its an ozone depleting regrigerant, it can be as much as 32,000 dollars!! Probably the main reason why cars has adapted the R134 is because leaks are very common in cars, and R134 does not deplete the ozone layer, although it still contribute to global warming.
could be a gas leak ( low gas pressure shut off switch, failed start run capacitor for the compressor , vermin problem shorting out the power board outside
The inside unit is just a fan
call an accredited ac technician to get a proper diagnosis and quote
Do you hear compresser start up noise. If so then please check it with a clamp meter and Amperage the Unit is drwing. If it is less than 8-9 Amps than there is some leakage in the AC and all the collent has leaked. So you got to get it serviced.
Hi, if you can hear the compressor running and its blowing room temperature air only, yes, if the air from the out side condenser coil is not hot, I would say you are low or almost out of freon. This is something you will have to call a tech out to find the leak and recharge. Even though it is only 2 years old, they can get leaks due to vibration. I don't know what you paid for it, but it will cost some $$$$ to have someone come out. It may be cheaper to replace it, as the leak could be in one of the coils which it wouldn't be worth fixing. Let me know on what you decide and if you need my help. Sincerely, Shastalaker7 PS Take a water hose and wash the out side coil off. do not bend the fins. See if it starts to cool then. If not, you are low on charge.
no freon.. pressure test w/ nitrogen. 8000 btus is now junk. Spend the money on new unit otherwise find the leak. It leaked out thats why the compressor will never go on. Once you add freon she'll turn on...same as car.
Dont buy that name brand again. best of luck to you
The likely reasons for a leaking AC are...
1) Improperly installed. A window air conditioner must be slightly lower at the rear than the front. This allows the water being removed from the room to drain to the back of the machine. A difference of one inch is sufficient. This is always the first thing to check. Many are improperly installed in the haste to get relief from the heat. If installed too low at front the water will flow into the room rather than outside. If installed too low at rear, water can roll out front edges before has chance to exit towards rear drain.
Icing up. Water being de-humidified can turn to ice if there are problems with the cooling system. There are many reasons for an air conditioner to produce ice. Remove front grille while machine is operating. If ice is present on the cooling coil you will probably need service. For more information see our other article:Why window Air Conditioners Ice up.
Air leakage around air conditioner. If warm air is able to enter around the air conditioner it will encounter cooler, dryer air. When they meet condensation will occur. If water leaking from front of air conditioner inspect to see if dripping from body of machine, or water droplets clinging to front area. To test, operate machine for 30 minutes and then use flashlight to check under front edge of base. Small water droplets here indicate an air leakage problem. Add foam insulation to stop warm air from infiltrating.
Drain hole blocked. Rear of air conditioner base has a drain hole or groove to allow water to escape. If becomes blocked water can back up. To test, operate machine for 30 minutes and then inspect if draining properly. If appears blocked use a small piece of wood to open drain hole at rear of metal base. CAUTION: Never be tempted to drill holes into the air conditioner body to relieve water pooling. Severe damage can result.
Internal drains blocked. There are small passageways that allow water to drain from front of air conditioner to the rear. If they become blocked water will pool at front of machine and overflow onto floor. If this happens the air conditioner will require removal from window and servicing.
Outside temperature too cold. This occurs at end of cooling season. If outside temperatures drops below 60 degrees Fahrenheit at night the cooling coil may ice up. If no leakage at bedtime but water in front of machine in morning, suspect this problem. If this problem suspected turn off machine before bedtime and restart as day warms. Alternately, operate machine at night with selector switch in ‘fan only’ position. This will circulate room air during night but not allow cooling.
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