Compressor Malfunction - Moisture Contamination
We talk about one of the most common problems in the A/C system
Moisture contamination refers to a failure that results from conditions that can occur when moisture is introduced into the A/C system.
Liquid slugging is a condition that occurs when liquid is allowed to enter one or more cylinders. Because the liquid is practically non-compressible, the compressor seals may be compromised when the pistons attempt to compress the liquid. Liquid slugging can lead to permanent valve damage and reduced compressor efficiency.
Moisture contamination occurs as a result of moisture being allowed to enter and remain in the A/C system.
This condition can be caused by the following:
• Improper vacuuming of the system.
There are 4 primary identifiers of moisture contamination.
Frig Air S.p.A. Holidays
Please see our holidays closure.
OUR PARTNER TECHRAD
Techrad is one of our production plants: more than 15.000 sqms, 300k radiators a year, 100 motorcycle radiators, 1500SKUs car applications.
Frig Air associated company Techrad (Zhejiang) Automotive Thermal System Corp. was established in May 2006 in Hangzhou, China.
Techrad main products include brazed aluminium heat exchangers, expanded aluminium heat exchangers, aluminium/plastic radiators, and heater cores.
They follow strict quality control procedures starting from the material’s provisioning, throughout the production process, to the packaging, shipping, and after-sales support.
Techrad can manufacture more than 300k radiators a year.
In their catalogue they have more than 100 references for motorcycle radiators and more than 1500 SKUs for car applications. All the products are tested in different conditions.
In the past few years, the auto industry’s transformation has accelerated around the world. Electric cars are going to have a very large market in the future, Techrad is programming its long-term strategy around the EV’s market.
NEW AGRICULTURE & OFF-HIGHWAY CATALOGUE
NEW A/C & THERMAL CATALOGUE AGRI & OFF-HIGHWAY WITH STANDARD APPLICATION. DOWNLOAD IT IN OUR DOWNLOAD SECTION. MORE THAN 300 REFERENCES.
In the DOWNLOADS section of our website, you will find the new AGRI Catalogue, more than 300 references. A/C & Thermal Spare Parts, also you will find OE compressors and OE Oil coolers.
Have a look at our online catalogue and discover all the products, easy research with the OE/AM codes.
Frig Air is near the workforce.
Compressors Maintenance Tips
Frig Air tips for the maintenance of the Compressors.
FrigAir and Sanden give you some suggestions for the maintenance of your compressors.
The core of the automotive A/C is the refrigerant circuit. Within this cycle, the heat from the cabin is exchanged with the ambient, transported by the refrigerant (e.g. R134a). The components of a standard refrigerant cycle are the compressor, condenser, expansion valve, and evaporator. The compressor is the heart of the vehicles’ air conditioning system; it is a very delicate component, the principal source of disruption in the A/C structure.
The compressor is sucking in the refrigerant in a gas state with low pressure. After compressing it up to a higher pressure, the hot gas is pumped into the condenser. At this stage the refrigerant exchanges the heat with the ambient and cools down nearly to ambient temperature, the pressure is still high. At the Thermostatic expansion valve the refrigerant expands, pressure and temperatures go down. The cold refrigerant is now passing the evaporator and exchanging the heat with the hot cabin air.
The compressor is driven by a belt attached to the vehicle’s engine which is engaged by an electromagnetic clutch called the compressor clutch. The A/C compressor is activated by the electronic clutch. When the a/c is switched on a drum inside the belt pulley is magnetized attracting and locking the belt drive into place making it so that only when engaged does it add extra resistance.
In the A/C system, the performances of one component affect the performances of the rest, due to its delicate components when the A/C system fails, the first part that is suspicious is the compressor, and so it is the first part replaced. From Sanden’s experience: 30% of compressors replaced during the warranty period are without any problem; more than 65% are broken due to reasons not liable to the compressor, and less than 5% fail due to a compressor production defect. Wrong diagnosis and wrong repairs cause a high cost to all involved parties.
The main enemies of the compressor are hits, dirtiness, and bad refrigerant/oil circulation.
It is obvious that hits to the car can cause serious damages to the compressor. Hits can break the ears or the armature of the compressor and they can affect the right functioning of the pulley, causing noises and general wrong functioning of the compressor.
The refrigerant pumped from the compressor to the condenser must be without impurities, so it’s really important to have cleaned filters to prevent a lack of performance or damages to the system. Remember to flush the system after a compressor failure, because it could be contaminated with particles that can cause severe damage to the valves and subsequently to the right functioning of the compressor.
REFRIGERANT/OIL WRONG CIRCULATION
If we have conditions under which there is not a proper circulation of oil or refrigerant, the compressor internal parts will not be refrigerated or/and lubricated, and so the internal parts will be damaged.
The typical causes for wrong circulations of oil refrigerant are:
- Wrong amounts of oil/refrigerant. It is important to adjust the oil/refrigerant amounts to the one specified by the A.C. system manufacturer. In case of too small amounts of oil/refrigerant, the internal compressor parts will not be refrigerated/lubricated, and so the compressor will fail. The most difficult situation comes when a vehicle has had a crash and we do not know the amount of oil lost. In such cases, the best option is to do a flushing of the system and put the oil amount recommended by the A.C. system manufacturer.
- If any part of the system has a lock, the oil/refrigerant circulation will not be correct. Special attention must be given to the receiver drier, which has to be replaced after a compressor replacement, expansion valve proper functioning, and any other filters of the system as the one of the calibrated orifice.
- In the case of a small leak, the refrigerant amount will be decreasing in a slow way. It is thought that the compressor is protected from leaks by the pressure sensor. The pressure sensor protects the compressor in the case of a quick leak (Eg.: the condenser is broken in a crash), but it does not protect the compressors in case of a slow leak.
An expert mechanic must check all the symptoms before changing the compressor, so before proceed with the wrong procedures you need to make the right diagnosis, to help you with this process the compressor oil aspect is an excellent tool that can tell us what is happening with the compressor without disassembling it.
The clear yellow color is the aspect of oil in normal conditions.
The light grey color is common in compressors that have run for a short time (very new compressors) due to the surface treatment of compressor internal parts. Later on during the A.C. running the oil turns to normal color.
The green color indicates the presence of additives to detect leaks. As there are many additives in the market, Sanden cannot guarantee the behavior of the compressor when additives are added to the oil.
The orange color indicates the presence of humidity. The origin is due to poor vacuum, or components contaminated by water. A proper clean of the system and replacement of the received drier is required before proceeding to charge the A.C. system with refrigerant.
Dark grey indicates the presence of very small metal particles inside the oil. The origin is due to compressor wear/seizure as a consequence of wrong oil/refrigerant circulation.
The silver color indicates the presence of medium-size metal particles inside the oil. The origin is due to compressor internal damage, due to compressor defect or wrong working conditions, such as a liquid compression that creates abnormal efforts. The compressor must be replaced. A proper clean of the system and replacement of the received drier+ expansion device is needed before proceeding to charge the A.C. system with refrigerant.
There are other several problems concerning the compressor:
Remember that the warranty on compressors will only be granted for defects caused during the manufacturing process. Furthermore, FrigAir warranties will not be awarded unless the following procedures carried out:
Did we check the leak, clean the system, put a new receiver drier, verified replace the TXV?
(source: Sanden “Compressor failure root causes”)
Sanitize your Vehicles with Frig Air products
New Frig Air sanitizing products
Discover our complete new line of sanitizing products for your vehicles, fleets, offices, and workshops.
Several products to help your business works safely.
Furthermore, you can find the interior cleaning treatment 60.12045 for your SUV - Wagon - Commercial Vehicles -Minibus - Motor Home up to 20mq.
New FrigAir nebulizer NEBUclean 41.30753
It can be used to sanitize the air conditioning systems of motor vehicles or for small rooms/offices.
Treatment time for 120ml 12 min. approx.
ATOMclean Atomizer 41.30754
Atomclean FrigAir and ATOMclean sanitizing liquid 60.12048
ATOMclean is a nebulizer spray composed of an air compressor and a spray gun.
Frig Air AGRI
Discover our line of Off-Highway spare parts, OE and Aftermarket products.
Frig Air is a leader in the spare parts aftermarket for cars and trucks business.
Recently we put our expertise in the Off-Highway market, we have widened our range, now you can find more than 200 references for the most important agricultural equipment and heavy-duty machinery.
Our range is composed of OE and remanufactured compressors, also we are expanding our condensers catalogue. Most importantly we added new OE TitanX oil coolers.
The agricultural equipment must be productive to help the farmers in their daily work, for this our technicians have chosen carefully the suppliers.
Frig Air New Products
Check out Frig Air new products
Frig Air catalogue is always growing, we added some new air cooling and thermal products, find out our new Off-road condensers and compressors or discover our new SCANIA OE Radiators by TitanX.
If you are looking for radiators, we added more passenger cars references, have a look at our September and August catalogues in the Download section.
You can find it in 6 languages or call the Frig Air company near you.
New Scania Radiators
0222.2013 - 0222.2014 - 0222.2015
Check out our Truck radiators for SCANIA LPGRS Euro 6: P200-G/R300-S400.
All these radiators are OE manufactured by TitanX.
Discover our complete Trucks line, OE and OE quality products, only the reliable suppliers: TitanX, Sanden & Borg Warner.
New Radiator AUDI & VW
NEW PRODUCTS 60.12044/60.12046
Discover our two new Hygienising Products Cleansì & Sanibact
60.12044 Cleansi is a powerful 80% alcohol-based purifier in an aerosol can that deeply cleanse for vehicles: sprayed directly on handles, dashboards, shift levers, steering wheel.
60.12046 Sanibact is a disinfectant Presidio Medico Chirurgico with Virucidal and Bactericide efficacy, specifically developed to kill germs and bacteria on all surfaces granting a deeper level of disinfection.
Chiusura estiva agosto 2020 - August CLosure
Chiusi per Ferragosto 14 - 17 agosto 2020 - Frig Air will be closed from 14th to 17th August 2020
Si comunica ai clienti che FrigAir spa rimarrà chiusa solo per ferragosto. I nostri uffici saranno chiusi dal 14 al 17 agosto 2020.
Gli ordini effettuati durante questo periodo verranno elaborati dal 18 agosto 2020.
Frig Air will be closed for Bank Holiday from 14th to 17th August 2020, we will be back from the 18th August.
Automechanika Frankfurt postponed to 2021
Due to the coronavirus pandemic, Messe Frankfurt has decided to postponed the event.
The spread of the new coronavirus is having a significant impact on large events, businesses and economies in several countries, and that now includes Automechanika Frankfurt.
The world's leading trade fair for the automotive service industry will take place in Frankfurt am Main from 14 to 18 September 2021.
Frig Air approves this decision because now is the time to act in order to protect our employees and their families through this difficult time.
See you next year we will keep you posted.
Frig Air rimarrà chiusa da martedì 17/03 fino a Venerdì 20/03.
Viste le nuove disposizioni in materia di coronavirus, al fine di tutelare la salute dei propri dipendenti, delle nostre famiglie nonché dei nostri partners commerciali e limitarne al massimo il rischio di contagio, Frig Air rimarrà chiusa da martedì 17/03 fino a Venerdì 20/03.
La situazione è in costante evoluzione. Sarà nostra cura informarVi tempestivamente in caso di nuovi aggiornamenti
Dino Zappaterra e team Frig Air
Following the recent provisions in terms of coronavirus, to protect the health of all employees, our families and our business partners, with the aim to limit the risk of infection, Frig Air will be closed starting from today, Monday March 16th, till Friday March 20th.
We will promptly keep you informed on any new updates.
Dino Zappaterra and Frig Air team
Frig Air at EICMA 2019
Visit us Hall 18 Stand G84
FrigAir will attend the 2019 EICMA Exhibition in Milan, 05 - 10 November 2019.
FrigAir is an OE Manufacturer for Cars and Motorcycles Radiators for Aprilia, Fantic and BetaMotor.
Visit us at EICMA and discover our Motorcycle Range, Hall 18 Stand G84.
EICMA, acronym of International Motorcycle and Accessories Exhibition is, at the world level, the most important trade fair event for the entire 2-wheel sector and represents the marketing tool of ANCMA, the Confindustria Industrial Association of which the most prestigious companies in the industry.
Pre-Season is here.
The Summer preseason is here and we are expanding our A/C catalogue so that we will have a wider availability and we will be more efficient during the busy season.
For this reason, now we can offer three lines of A/C Compressors: OE 920 - Aftermarket 930 - Remanufactured 940, we have over 1.000 references in the catalogue.
The 920 is our mainline and is composed of only of OE Compressors, due to our long partnership with Sanden, we can have always a great availability.
The 930 is our line dedicated to the Aftermarket Compressors, equivalent products to the original.
The 940 is our line of OE Remanufactured Compressors, this line is new and is going to be composed of over 200 references, all the compressors are refurbished in Italy.