If you need to recharge the a/c system in your car, Call Us Today. Auto A/C Repair LLC. Technicians come to your home or office in Miami and will service the AC in your vehicle at your place.
Auto A/C Repair LLC. technicians will :
Recover the old refrigerant from the vehicle AC system.
Vacuum the car AC system to make sure there is no moisture or non-condensable gases in the AC system.
Recharge the car AC system with the exact refrigerant amount recommended by the manufacturer
After the Air conditioning system is recharged up to manufacturer specifications, the technician will check the AC system operating pressures.
The technician will do an AC system oil balance.
WHAT IS AN A/C RECHARGE?
The A/C Recharge service will bring the amount of refrigerant and oil circulating in your vehicle’s AC system up to the exact manufacturer specifications. The refrigerant is where the heat from the vehicle’s cabin is stored and moved out to the outside of the vehicle where is transferred to the outside ambient air. To cool down the driver and passenger compartment fast and properly the exact amount of refrigerant specified by the manufacturer must be circulated in the air conditioning system.
HOW DO YOU KNOW IF YOUR CAR’S A/C NEEDS TO BE RECHARGED?
The AC system is not cooling down the interior of the vehicle as fast as it used to.
The car interior temperature never gets cold enough.
A low freon charge could be the result of a leak in any component of the car ac system.
A/C compressor turning on and off fast(Compressor Over cycling).
Properly fixing a low freon condition involves more than just recharging the a/c system. If there is a leak in the system it must be fixed, otherwise the freon charge could only last a couple hours or days before it is low again.
Refrigerant leaks and refrigerant oil leaks happen together ,just at different rates. Recharging the freon in the car ac system without balancing and recharging the oil could lead to compressor failure
HOW OFTEN DOES A CAR A/C NEED TO BE RECHARGED?
You will need an AC freon recharge as soon as the system is low or after any repair that involves opening the closed loop sealed air conditioning system is performed in your vehicle.
WHY YOU SHOULD LEAVE IT TO THE PROFESSIONALS
The only accurate method to recharge an automotive a/c system that requires a critical charge is to weigh the refrigerant (Freon) into the system using a manifold gauge set and calibrated special scale for this purpose. Recharging the a/c system by pressure, which is the method used when the system is recharged using small refrigerant can and a gauge is inaccurate, and virtually impossible to charge the system according to manufacturer specifications.
WHERE TO GET AN A/C RECHARGE
Is it time to get your vehicle’s air conditioning system recharged ? Schedule an appointment today at Auto A/C Repair LLC. for car A/C Recharge and repair services. One of our ASE certified technicians will come to your home or office to perform the service at your place.
The only accurate method to recharge an automotive a/c system that requires a critical charge is to weigh the refrigerant (Freon) into the system using a manifold gauge set and calibrated special scale for this purpose. Recharging the a/c system by pressure, which is the method used when the system is recharged using small refrigerant can and a gauge is inaccurate, and virtually impossible to charge the system according to manufacturer specifications. Depending on the a/c system design, the pressures will be impacted by the type of compressor, metering device(Expansion Valve or Orifice tube) ,ambient temperature and humidity. Pressure controlled systems could reach pressure cycling points faster ,increasing the compressor clutch cycling and forcing the compressor to operate under higher-than-normal crankcase temperatures if the system is undercharged. Short cycling compressors will decrease the life of the compressor clutch assembly, due to more often engagement and disengagement of the clutch assembly and the compressor pulley. When the system is overcharged the evaporator will not be able to evaporate the refrigerant metered by the metering device and liquid refrigerant could reach the a/c compressor. An overcharge system will force the a/c component working pressures to the limits and could develop leaks and cause compressor damage.
Car A/C system Recharge near me
Improperly recharged car a/c systems will increase or decrease compression ratios, negatively impacting the overall health of the a/c system. Just because the air conditioner is blowing cold air, it doesn’t mean is working according to manufacturer specifications. Modern car a/c systems design have the capability to adjust their operation even when the freon recharge is not 100% accurate. The a/c system will change compressor displacement, thermal expansion valve operation ,condenser fan speed and will force the system to get to the desired temperature set by the driver. Car a/c systems working under inaccurate freon charge will have compression ratios that will stress the compressor and shorten their life. The manufacturer calculated values of superheat and subcooling happening in the evaporator coil and condenser coil will change, making it harder for the metering device to respond to the flow of refrigerant and for the compressor to receive refrigerant oil back from the evaporator needed for internal piston lubrication. Flash gas rates will be higher at the expansion valve making the valve less efficient.
Ac freon recharge near me
You will need an AC freon recharge if the system is low or after any repair that involves opening the closed loop sealed air conditioning system is performed in your vehicle. A low freon charge could be the result of a leak in any component of the car ac system. Properly fixing a low freon condition involves more than just recharging the a/c system. If there is a leak in the system it must be fixed, otherwise the freon charge could only last couple hours or days before it is low again. Refrigerant leak and refrigerant oil leak happen together ,just at different rates. Recharging the freon in the car ac system without balancing and recharging the oil will lead to compressor failure.
A list of common refrigerant overcharged car A/C symptoms:
High discharge pressures
High suction pressures
High compression ratios
High Condenser subcooling
Near normal superheats with a TXV system
Low superheats with fixed orifice tube system(FOT)
Insufficient cabin cooling
A/C compressor damage
A/C pressure relief valve opening and venting refrigerant.
A/C noisy compressor
Liquid refrigerant intrusion into the a/c compressor
A/C compressor sweating down its side or all over
How to Fix an Overcharged car AC system
Step by step guide on how to fix an overcharged car a/c system:
To fix an overcharged car a/c system ,it must be properly charged with the exact amount of refrigerant specified by the manufacturer. After the system evacuation, and dehydration the system can be charged with the new refrigerant type and amount. The only accurate method to charge a system that requires a critical charge is to weigh the refrigerant into the system.
Step by step procedure on how to recover, vacuum and recharge the car air conditioning system
Connect the A/C Recovery equipment to the car air conditioner system
Operate the recovery unit to remove refrigerant
Operate the unit until the system has been reduced from a positive pressure to a vacuum.
Shut the A/C Recovery machine off, wait at least 5 mins to determine if all the refrigerant has been removed
If the system returns to a positive pressure, additional refrigerant recovery is required.
Repeat the recovery operation until the vehicle A/C system vacuum remains stable for 2 mins.
Where to find the exact amount of refrigerant specified by the manufacturer ?
The refrigerant type and refrigerant amount are normally found on the specification decal fastened on or close the A/C system under the hood or in the vehicle service manual, by the vehicle manufacturer.
Do you need assistance recharging your overcharged car a/c system ?
