Genuine Nissens products: focus on the condenser

The condenser is one of the most critical parts of the air conditioning (AC) system, ensuring the correct parameters of the refrigerant and helping to keep the AC system working properly.  

How to avoid common problems, solutions recommended by experts:

          1.     Always handle the condenser properly and do not disregard any light damage on its surface. Replace the condenser with a new unit if the tubes or fins are visibly damaged. 

          2.     Learn and apply the basic AC system diagnostic methods when troubleshooting the AC system and the condenser. We highly recommend inner state inspection using a sight-glass tool and the loop's pressure and temperature diagnostics. 

          3.     Carry out a regular visual inspection of the entire AC system, specifically the condenser's surface, joints, and couplings. Pay particular attention to the bottom part of the condenser, where tubes and fins are mostly exposed to humidity and aggressive salt spray. If there are any signs of leakage or missing/deteriorated fins, replace the condenser.

          4.     Never ignore soiling and debris that may cover the condenser surface – remove if possible or gently clean the surface. Never use pressure cleaners on the fragile condenser surface. Stubborn soiling that is difficult to eliminate should result in condenser replacement.

          5.     Eliminate sources of abnormal soiling on the condenser surface, for example, oil leaks from other engine components like the intercooler, turbo, or the engine. Repair any refrigerant leaks from the couplings. Keep in mind a leaky condenser cannot be repaired. Avoid gluing or using leak-stopping agents.

          6.     The receiver dryer must always be replaced whenever the system has been opened (e.g., the loop parts replacement) or exposed to ambient air or moisture intrusion (by severe leaks). 

          7.     Always use the recommended type and volume of oil and additives. 

Flush the system after a compressor breakdown and by concluding system contamination. Notice the majority of modern condensers cannot be flushed and thus should be replaced. 

          8.     When replacing the condenser, only choose good quality replacements because the proper design and materials will ensure the condenser's, and subsequently the entire AC system's strength and performance, for the long term. Furthermore, we recommend installing condensers with corrosion protection, as this will considerably prolong its lifespan.