Three Common AC Condenser Problems

When your air conditioning unit stops working correctly, there is a good chance the problem could be traced to the condenser component. The condenser is comprised of coils that cool the heated refrigerant which the compressor has pressurized into a hot liquid. The hot liquid travels through the condenser coils while air blows on the coils,  giving off heat through the coil fins. Once the fluid reaches the end of the condenser coils it has cooled, leaving the coils through a valve that transforms the fluid into a cool, gaseous mist. This process is essential for your AC unit to work efficiently. 

3 Common Condenser Problems

There are a few problems that can stop your condenser and AC unit from performing optimally. Your condenser must be receiving air to cool the coils; it also must be able to push the hot refrigerant through the coils and radiate the heat from the hot fluid through the fins.  Here are three of the most common issues: 

  • Dirty coils. If the condenser’s coils are dirty, the heat may not be escaping properly. Dust and debris can insulate this heat.  The coils can be cleaned with water, spraying off the coils while the unit is turned off.
  • Blocked air flow. If sufficient air is not allowed into the AC unit from outside, there may not be enough air flow to cool the coils. Make sure that there is nothing blocking the air vent into the AC unit, either on the outside or in the unit.
  • Damaged coils or fins. The coils and fins on the condenser can become damaged over time. If fins are dented or bent, they can restrict the heat release needed to cool the air. If coils are damaged, it can cause refrigerant leaks. 

Regular residential HVAC service can ensure your condenser is clean and in good repair.  Before summer begins, have your AC unit and condenser serviced to make sure it is ready for the hot months again.

Posted on behalf of James Smith, ClimateSmith LLC

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