Since the housing of most air conditioners is made up of metal, any water that drips on their surfaces is bound to encourage rusting. The layers of rust that form as a result usually leave ugly marks on an air conditioner and also encourage the formation of holes on the metal encasing. An easy way of avoiding these rust-related problems is to improve the effectiveness with which your unit's condensate drainage system gets rid of any water that is formed as a result of the air conditioner's cooling process. The following are condensate drainage tips that will come in handy in helping you prevent air conditioner rust formation.

Use a larger condensate collector tray

The collector tray is where any condensate that forms in the evaporator coil area first collects before being emptied by the condensate drain lines. There are times when increased humidity levels can lead to a high condensation rate. This may then cause more-than-normal amounts of condensate to form. As a result, the rate at which the condensate flows into the condensate collector tray can be more than the rate at which it leaves the tray. If this happens, the condensate collector tray will overflow and water will drip onto the housing of the air conditioner. The metallic parts of the air conditioner will then experience accelerated rates of corrosion.

Installing a larger condensate collector tray will help reduce the likelihood of such an overflow. This is because with a larger tray, the condensate will have more space to fill. This will then reduce the incidences of overflow even in cases where the rate at which the water flows into the condensate is higher than the outflow rate since there will be a place for the extra condensate to stay while waiting for a ride through the condensate drain lines.

Ensure that the drain lines are sloped downhill

Two problems usually arise in cases where condensate drain lines are sloped upward. The first is that it makes it hard for the condensate to flow through since the in upward-sloping sections, the condensate has to work against gravity. This is a problem especially for air conditioners that aren't equipped with condensate drainage pumps. This usually reduces the effectiveness of the condensate draining process, something that increases the risks of the collector tray getting filled up. The second problem is that the sudden change in pace brought about by an upward slope usually encourages the settling of any dust particles in the condensate. With time, this accumulation leads to blockages that then encourage condensate collector tray overflows.

Ensuring that your condensate drain lines are always sloped downhill will prevent blockages while also ensuring that the condensate takes full advantage of gravity. This will reduce the risks of water leaks, something that will then go a long way towards rust-proofing the metallic parts of your air conditioning system.