Home Improvement

Why Ac Coil Corrosion Occur & How To Prevent It

AC Corrosion is a central HVAC issue that can cause serious troubles. As is the point for any different HVAC related case, it is better to control coil corrosion rather than improve it.

With that said, in cases of progressive AC coil corrosion, which guides to refrigerant leaks, the air conditioner may not be repairable. Thus, you may have to return the entire plan. Because it can be a costly issue, it is most useful to bargain with AC coil corrosion by controlling it.

What is AC Coil Corrosion

The coils are one of the most crucial elements within your HVAC system. This is because it’s in the coils that warmth is changed. There are two coils in an HVAC system: a condenser ring and an evaporator coil.

What Causes Corrosion?

Coil corrosion happens in one of two ways:

  • The outdoor condenser coil becomes pitted from openness to corrosive meanings in the air and rain, such as fluoride and chloride.
  • The indoor evaporator coil corrodes because volatile organic elements are off-gassed by building materials, pressed-wood furniture components, textiles, fabrics, and various everyday household products. Once these mixtures decide on the coil surface, they turn into caustic formic and acetic acids.

How to Prevent Corrosion

Regularly experienced HVAC keeping that includes cleaning the coils is the most useful way to keep corrosion under control. An experienced Ac Repair in Bengaluru pro knows the right methods and products to safely neutralize and remove cutting accumulations from the coils. A pro may also recommend:

  • Has an anti-corrosive coating been applied to the coils once they’re clean?
  • Install a whole-house air purifier on your HVAC system to grab and stop airborne VOCs.
  • Flush down your outdoor unit with the stocking every month to limit the advertisement of potentially-harmful waste.

What Are the Signs of Coil Corrosion?

Coil corrosion may be challenging to see because the coils are located within the HVAC method. However, corrosion does cause coil leaks, which have the next symptoms:

  • Higher energy bills on your ac 
  • Hissing sounds while running
  • Frozen coils damaged its internal parts 
  • Water leaks make it unclean
  • Longer cooling cycles are also a damaging factor 
  • HVAC unit not producing cold air when your ac coil damage
  • Bubbles within the evaporator coil, prevent it.

There are a pair of ways to control coil corrosion in your AC. The first, and most essential one is applying a protecting coating. Periodic cleaning of the coils should also help prevent AC corrosion. This is because it allows getting rid of residues that later lead to corrosion.

While you may not want to pay largely on keeping your HVAC system, it is vital to note that Ac Repair in Bhopal experts best does the coating and cleaning of the indoor coil. Washing the indoor AC coil yourself can easily lead to more harm.

The outdoor unit is more suitable and as such, you can easily cleanse it yourself. To control AC coil corrosion on the outdoor unit, secure that you cleanse the coil at least twice a year. Here’s how to go about it:

  • Trim off the power store to the outdoor unit at the primary switch
  • Dismiss the side panels and the top grille of the unit
  • Utilize a garden hose to spray the interior of the condenser unit
  • Allow the coil dry before repairing the side panels and top grille


Trusting your HVAC unit, its lifespan could be up to 25 years. Nevertheless, coil corrosion can negatively affect the longevity of your HVAC system. If you’re not actively preventing coil corrosion, you may be caught unexpectedly by a ruined condenser or an evaporator coil and end up meeting a costly, early HVAC replacement. It’s more suitable for both your HVAC system and your wallet to control coil corrosion in the first place.

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