Analysis of Denso A/C Compressor warranty claims show that in a quarter of all cases the use of incorrect oils, such as universal oils or oil mixtures, inevitably leads to seizure and damage. This is because universal oils, are PAO-oils or mineral oils with a different viscosity to that of synthetic PAG-oils. PAO-oils do not mix well with PAG-oils and with refrigerant R134a or R1234yf, leading to poor lubrication and increased wear.
Air conditioning oil properly recharged and balanced.
Installing the Compressor without balancing the oil in the system , gives a high risk of liquid lock, due to too much oil in the A/C system!
A worn compressor pulley bearing, or clutch bearing will cause a growling noise. AC compressor clutch assembly needs to be replaced.
Growling noise with the compressor engaged
A/C compressor internal bearing/components damage. The entire ac compressor should be replaced.
A high compression ratio
Either an increase in head pressure or a decrease in suction pressure will cause higher compression ratios. Any time a system has high compression ratios the compressor’s discharge temperature will also be elevated. This is because of the higher heat of compression during the compression stroke associated with higher compression ratios. When compression ratios are high, more energy is needed to raise the pressure of the suction gases to the discharge pressure. This means more heat is generated as heat of compression during the compression stroke.
Cooling performance decreases
A/C not as cold as it used to be
Knocking noises from the compressor
Squealing A/C compressor drive belt
Excessively hot compressor crankcase
Compressor pressure plate not engaging
Both lines from a/c compressor at the same ambient temperature
Gauge pressure ,High side Low and Low side High
A/C compressor locked up. Compressor Does not turn when rotated by hand.
Compressor pressure plate signs of overheating condition
Compressor body signs of overheating condition
The best way to fix a bad car ac compressor
To permanently fix a bad car ac compressor you must first, take care of the condition that led to the compressor damage. Identifying what damaged the old compressor is the only effective way to prevent the same fault happening to the new compressor. It is vital to follow the proper manufacturer specifications while installing the new a/c compressor or any air conditioning component.
The top automotive system faults that lead to A/C Compressor Damage.
These are the top automotive system faults that could lead to A/C compressor Damage:
A/C compressor over cycling.
Excessive high compressor temperature due to air conditioning system contamination.
Cooling system underperformance affecting a/c operation.
Drive belt slipping on a/c compressor pulley creating excessive high heat load.
Slipping clutch pressure plate due to out of specs compressor clutch gap.
Shorts to power or ground on the ac compressor clutch coil circuit.
A/C compressor clutch relay inoperative or shorted.
Incorrect or contaminated refrigerant in the air conditioning system.
Inefficient or restricted auto a/c condensers
High compression ratios
Do you need to get you Car A/C Compressor inspected ?
Schedule an appointment Today for a Car A/C Compressor inspection. Auto A/C Repair LLC. offers a complete automotive air conditioning system mobile repair service.
Incorrect or contaminated refrigerant in the air conditioning system.
Inefficient or restricted auto a/c condensers
High compression ratios
What to do if my auto A/C Compressor fails ?
Technically the compressor can be rebuilt ,it is recommended to replace the entire compressor. If there was a major internal compressor failure the entire system must be inspected for debris(metal from internal compressor components).After an internal compressor failure, it is recommended to replace the A/C condenser(Specially if it is a modern Parallel Flow type) and the drier, to avoid contamination of the brand new air conditioning compressor. Also, the system should be flushed to avoid contamination.
Where can I Get my auto ac Compressor Replaced?
If you need assistance replacing the a/c compressor in your vehicle Call Us Today ! Auto A/C Repair LLC. operates a mobile air conditioning repair shop in Miami. Contact Us if you need to check any auto a/c compressor failure symptoms. One of our ASE certified mechanics will take care of your vehicle. We offer 1 Year Warranty on Parts and Labor.
Most automotive manufacturers recommend closed loop flushing with air conditioning refrigerant as a flushing agent. A benefit of this type of flushing is there is no danger of flush contamination , since the flush agent being used is the correct refrigerant for the A/C system.
Avoid this type of auto ac system flushing
Over the years many different liquids have been used as non-approved flushes for a/c systems. The more common are:
Alcohol
Brake cleaner
Carburetor cleaner
Mineral Spirits
Penetrating oil
R-11, R-12, R-113
Gasoline
The use of unapproved chemical flushes can result in damage to rubber components in sealing washers, auto ac compressor shaft seals, O-rings and hoses.
At no time should these products be used as a flush agent. If a compressor failure is caused by non-approved flushing agent being left behind in the a/c system, it can void the compressor warranty.
How often should you flush your auto AC system?
When an auto A/C system has become contaminated with air, moisture, flushing agents, the automotive ac compressor oil is contaminated with an incorrect type of oil or from debris from an internal auto ac component failure , or the system has been overcharged with oil, dye, it must be flushed.
What happens if you don’t flush the AC system in your auto?
The debris created from internal auto ac compressor failure can accumulate and become trapped in the various a/c system components , and restrict the flow of refrigerant and oil. When used in a quantity beyond what the dye manufacturer recommends, dye can modify the viscosity of the ac compressor oil and becomes contaminant. Air as a contaminant may cause decreased auto ac cooling performance, create car ac compressor noise, or increase system pressures. Contaminated auto a/c systems may cause hvac compressor failure, air conditioning hose and line damage due to excessive heat and high pressure and overall automotive a/c system performance decrease.
Do you need assistance Flushing your auto a/c system ?
Call Us today ! Our ASE certified mechanics perform all types of auto a/c repairs. We have auto a/c mechanics near you.
Most vehicle manufacturers recommend closed loop flushing with air conditioning refrigerant as a flushing agent. A benefit of this type of flushing is there is no danger of flush contamination, since the flush agent being used is the correct refrigerant for the automotive A/C system.
Non-Approved Automotive AC flushes
Non-Approved flushes : Over the years many different liquids have been used as a non-approved flushes for A/C systems. The more common items are:
Alcohol
Brake cleaner
Carburetor cleaner
Mineral spirits
Penetrating oil
R-11, R-22, R-113
Gasoline
Automotive AC system contamination with liquid flush agents
The use of unapproved chemical flushes can result in damage to rubber components in sealing washers , compressor shaft seals , O-rings and hoses.
Automotive A/C compressor internal damage
Unapproved chemical flushes when mixed with the auto ac compressor oil , it will alter the viscosity of the oil as well. Any material left behind in the a/c system after flushing will dilute the lubricant and cause performance issues , increased compressor noise and premature compressor failure. If compressor failure is caused by non-approved flushing agent being left behind in the a/c system it can void the compressor warranty.
Do you need assistance Flushing your automotive a/c system ?
Call Us today ! Our ASE certified mechanics perform all types of auto a/c repairs. We have auto a/c mechanics near you.
Replacing an A/C condenser with missing or bent fins.
Keeping the Cooling system performing at 100 % efficiency
Checking the Cooling system fan clutch or electric fans operating at 100 % efficiency
A/C refrigerant system free from air or other contaminations.
Protect Auto A/C compressor against lack of lubrication.
With a large refrigerant undercharge, oil is pumped out from the compressor and becomes trapped in the evaporator or other ac components of the system and is unable to properly return to the hvac compressor. The amount of oil in the compressor can get down to dangerously low levels creating excessive heat and, in most cases, leading to failure of the unit. Some Air conditioning tests has shown that with an undercharged ac system, the oil amount in the compressor was reduced by over 57%.
Do you need a check up or maintenance in your car ac system ?
Call Us Now ! We have ASE certified mechanics near your area in Miami.
